| #! /usr/bin/env perl |
| # Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved. |
| # |
| # Licensed under the Apache License 2.0 (the "License"). You may not use |
| # this file except in compliance with the License. You can obtain a copy |
| # in the file LICENSE in the source distribution or at |
| # https://www.openssl.org/source/license.html |
| |
| # |
| #======================================================================== |
| # Written by Fangming Fang <fangming.fang@arm.com> for the OpenSSL project, |
| # derived from https://github.com/ARM-software/AArch64cryptolib, original |
| # author Samuel Lee <Samuel.Lee@arm.com>. The module is, however, dual |
| # licensed under OpenSSL and CRYPTOGAMS licenses depending on where you |
| # obtain it. For further details see http://www.openssl.org/~appro/cryptogams/. |
| #======================================================================== |
| # |
| # Approach - assume we don't want to reload constants, so reserve ~half of vector register file for constants |
| # |
| # main loop to act on 4 16B blocks per iteration, and then do modulo of the accumulated intermediate hashes from the 4 blocks |
| # |
| # ____________________________________________________ |
| # | | |
| # | PRE | |
| # |____________________________________________________| |
| # | | | | |
| # | CTR block 4k+8 | AES block 4k+4 | GHASH block 4k+0 | |
| # |________________|________________|__________________| |
| # | | | | |
| # | CTR block 4k+9 | AES block 4k+5 | GHASH block 4k+1 | |
| # |________________|________________|__________________| |
| # | | | | |
| # | CTR block 4k+10| AES block 4k+6 | GHASH block 4k+2 | |
| # |________________|________________|__________________| |
| # | | | | |
| # | CTR block 4k+11| AES block 4k+7 | GHASH block 4k+3 | |
| # |________________|____(mostly)____|__________________| |
| # | | |
| # | MODULO | |
| # |____________________________________________________| |
| # |
| # PRE: |
| # Ensure previous generated intermediate hash is aligned and merged with result for GHASH 4k+0 |
| # EXT low_acc, low_acc, low_acc, #8 |
| # EOR res_curr (4k+0), res_curr (4k+0), low_acc |
| # |
| # CTR block: |
| # Increment and byte reverse counter in scalar registers and transfer to SIMD registers |
| # REV ctr32, rev_ctr32 |
| # ORR ctr64, constctr96_top32, ctr32, LSL #32 |
| # INS ctr_next.d[0], constctr96_bottom64 // Keeping this in scalar registers to free up space in SIMD RF |
| # INS ctr_next.d[1], ctr64X |
| # ADD rev_ctr32, #1 |
| # |
| # AES block: |
| # Do AES encryption/decryption on CTR block X and EOR it with input block X. Take 256 bytes key below for example. |
| # Doing small trick here of loading input in scalar registers, EORing with last key and then transferring |
| # Given we are very constrained in our ASIMD registers this is quite important |
| # |
| # Encrypt: |
| # LDR input_low, [ input_ptr ], #8 |
| # LDR input_high, [ input_ptr ], #8 |
| # EOR input_low, k14_low |
| # EOR input_high, k14_high |
| # INS res_curr.d[0], input_low |
| # INS res_curr.d[1], input_high |
| # AESE ctr_curr, k0; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k1; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k2; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k3; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k4; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k5; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k6; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k7; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k8; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k9; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k10; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k11; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k12; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k13 |
| # EOR res_curr, res_curr, ctr_curr |
| # ST1 { res_curr.16b }, [ output_ptr ], #16 |
| # |
| # Decrypt: |
| # AESE ctr_curr, k0; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k1; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k2; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k3; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k4; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k5; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k6; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k7; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k8; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k9; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k10; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k11; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k12; AESMC ctr_curr, ctr_curr |
| # AESE ctr_curr, k13 |
| # LDR res_curr, [ input_ptr ], #16 |
| # EOR res_curr, res_curr, ctr_curr |
| # MOV output_low, res_curr.d[0] |
| # MOV output_high, res_curr.d[1] |
| # EOR output_low, k14_low |
| # EOR output_high, k14_high |
| # STP output_low, output_high, [ output_ptr ], #16 |
| # |
| # GHASH block X: |
| # do 128b karatsuba polynomial multiplication on block |
| # We only have 64b->128b polynomial multipliers, naively that means we need to do 4 64b multiplies to generate a 128b |
| # |
| # multiplication: |
| # Pmull(A,B) == (Pmull(Ah,Bh)<<128 | Pmull(Al,Bl)) ^ (Pmull(Ah,Bl) ^ Pmull(Al,Bh))<<64 |
| # |
| # The idea behind Karatsuba multiplication is that we can do just 3 64b multiplies: |
| # Pmull(A,B) == (Pmull(Ah,Bh)<<128 | Pmull(Al,Bl)) ^ (Pmull(Ah^Al,Bh^Bl) ^ Pmull(Ah,Bh) ^ Pmull(Al,Bl))<<64 |
| # |
| # There is some complication here because the bit order of GHASH's PMULL is reversed compared to elsewhere, so we are |
| # multiplying with "twisted" powers of H |
| # |
| # Note: We can PMULL directly into the acc_x in first GHASH of the loop |
| # Note: For scheduling big cores we want to split the processing to happen over two loop iterations - otherwise the critical |
| # path latency dominates the performance |
| # |
| # This has a knock on effect on register pressure, so we have to be a bit more clever with our temporary registers |
| # than indicated here |
| # REV64 res_curr, res_curr |
| # INS t_m.d[0], res_curr.d[1] |
| # EOR t_m.8B, t_m.8B, res_curr.8B |
| # PMULL2 t_h, res_curr, HX |
| # PMULL t_l, res_curr, HX |
| # PMULL t_m, t_m, HX_k |
| # EOR acc_h, acc_h, t_h |
| # EOR acc_l, acc_l, t_l |
| # EOR acc_m, acc_m, t_m |
| # |
| # MODULO: take the partial accumulators (~representing sum of 256b multiplication results), from GHASH and do modulo reduction on them |
| # There is some complication here because the bit order of GHASH's PMULL is reversed compared to elsewhere, so we are doing modulo |
| # with a reversed constant |
| # EOR acc_m, acc_m, acc_h |
| # EOR acc_m, acc_m, acc_l // Finish off karatsuba processing |
| # PMULL t_mod, acc_h, mod_constant |
| # EXT acc_h, acc_h, acc_h, #8 |
| # EOR acc_m, acc_m, acc_h |
| # EOR acc_m, acc_m, t_mod |
| # PMULL acc_h, acc_m, mod_constant |
| # EXT acc_m, acc_m, acc_m, #8 |
| # EOR acc_l, acc_l, acc_h |
| # EOR acc_l, acc_l, acc_m |
| |
| $output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef; |
| $flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef; |
| |
| $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; |
| ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or |
| ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate ) or |
| die "can't locate arm-xlate.pl"; |
| |
| open OUT,"| \"$^X\" $xlate $flavour $output"; |
| *STDOUT=*OUT; |
| |
| $input_ptr="x0"; #argument block |
| $bit_length="x1"; |
| $output_ptr="x2"; |
| $current_tag="x3"; |
| $counter="x16"; |
| $cc="x8"; |
| |
| { |
| my ($end_input_ptr,$main_end_input_ptr,$input_l0,$input_h0)=map("x$_",(4..7)); |
| my ($input_l1,$input_h1,$input_l2,$input_h2,$input_l3,$input_h3)=map("x$_",(19..24)); |
| my ($output_l1,$output_h1,$output_l2,$output_h2,$output_l3,$output_h3)=map("x$_",(19..24)); |
| my ($output_l0,$output_h0)=map("x$_",(6..7)); |
| |
| my $ctr32w="w9"; |
| my ($ctr32x,$ctr96_b64x,$ctr96_t32x,$rctr32x,$rk10_l,$rk10_h,$len)=map("x$_",(9..15)); |
| my ($ctr96_t32w,$rctr32w)=map("w$_",(11..12)); |
| |
| my ($ctr0b,$ctr1b,$ctr2b,$ctr3b,$res0b,$res1b,$res2b,$res3b)=map("v$_.16b",(0..7)); |
| my ($ctr0,$ctr1,$ctr2,$ctr3,$res0,$res1,$res2,$res3)=map("v$_",(0..7)); |
| my ($ctr0d,$ctr1d,$ctr2d,$ctr3d,$res0d,$res1d,$res2d,$res3d)=map("d$_",(0..7)); |
| my ($res0q,$res1q,$res2q,$res3q)=map("q$_",(4..7)); |
| |
| my ($acc_hb,$acc_mb,$acc_lb)=map("v$_.16b",(9..11)); |
| my ($acc_h,$acc_m,$acc_l)=map("v$_",(9..11)); |
| my ($acc_hd,$acc_md,$acc_ld)=map("d$_",(9..11)); |
| |
| my ($h1,$h2,$h3,$h4,$h12k,$h34k)=map("v$_",(12..17)); |
| my ($h1q,$h2q,$h3q,$h4q)=map("q$_",(12..15)); |
| my ($h1b,$h2b,$h3b,$h4b)=map("v$_.16b",(12..15)); |
| |
| my $t0="v8"; |
| my $t0d="d8"; |
| |
| my ($t1,$t2,$t3)=map("v$_",(28..30)); |
| my ($t1d,$t2d,$t3d)=map("d$_",(28..30)); |
| |
| my $t4="v8"; |
| my $t4d="d8"; |
| my $t5="v28"; |
| my $t5d="d28"; |
| my $t6="v31"; |
| my $t6d="d31"; |
| |
| my $t7="v4"; |
| my $t7d="d4"; |
| my $t8="v29"; |
| my $t8d="d29"; |
| my $t9="v30"; |
| my $t9d="d30"; |
| |
| my ($ctr_t0,$ctr_t1,$ctr_t2,$ctr_t3)=map("v$_",(4..7)); |
| my ($ctr_t0d,$ctr_t1d,$ctr_t2d,$ctr_t3d)=map("d$_",(4..7)); |
| my ($ctr_t0b,$ctr_t1b,$ctr_t2b,$ctr_t3b)=map("v$_.16b",(4..7)); |
| |
| my $mod_constantd="d8"; |
| my $mod_constant="v8"; |
| my $mod_t="v31"; |
| |
| my ($rk0,$rk1,$rk2,$rk3,$rk4,$rk5,$rk6,$rk7,$rk8,$rk9)=map("v$_.16b",(18..27)); |
| my ($rk0q,$rk1q,$rk2q,$rk3q,$rk4q,$rk5q,$rk6q,$rk7q,$rk8q,$rk9q)=map("q$_",(18..27)); |
| my $rk2q1="v20.1q"; |
| my $rk3q1="v21.1q"; |
| my $rk4v="v22"; |
| my $rk4d="d22"; |
| |
| $code=<<___; |
| #include "arm_arch.h" |
| |
| #if __ARM_MAX_ARCH__>=8 |
| ___ |
| $code.=".arch armv8-a+crypto\n.text\n" if ($flavour =~ /64/); |
| $code.=<<___ if ($flavour !~ /64/); |
| .fpu neon |
| #ifdef __thumb2__ |
| .syntax unified |
| .thumb |
| # define INST(a,b,c,d) $_byte c,0xef,a,b |
| #else |
| .code 32 |
| # define INST(a,b,c,d) $_byte a,b,c,0xf2 |
| #endif |
| |
| .text |
| ___ |
| |
| ######################################################################################### |
| # size_t aes_gcm_enc_128_kernel(const unsigned char *in, |
| # size_t len, |
| # unsigned char *out, |
| # const void *key, |
| # unsigned char ivec[16], |
| # u64 *Xi); |
| # |
| $code.=<<___; |
| .global aes_gcm_enc_128_kernel |
| .type aes_gcm_enc_128_kernel,%function |
| .align 4 |
| aes_gcm_enc_128_kernel: |
| AARCH64_VALID_CALL_TARGET |
| cbz x1, .L128_enc_ret |
| stp x19, x20, [sp, #-112]! |
| mov x16, x4 |
| mov x8, x5 |
| stp x21, x22, [sp, #16] |
| stp x23, x24, [sp, #32] |
| stp d8, d9, [sp, #48] |
| stp d10, d11, [sp, #64] |
| stp d12, d13, [sp, #80] |
| stp d14, d15, [sp, #96] |
| |
| ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 |
| ldp $rk10_l, $rk10_h, [$cc, #160] @ load rk10 |
| |
| ld1 {$acc_lb}, [$current_tag] |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| lsr $main_end_input_ptr, $bit_length, #3 @ byte_len |
| mov $len, $main_end_input_ptr |
| |
| ldr $rk9q, [$cc, #144] @ load rk9 |
| add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr |
| sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 |
| |
| lsr $rctr32x, $ctr96_t32x, #32 |
| ldr $h4q, [$current_tag, #112] @ load h4l | h4h |
| ext $h4b, $h4b, $h4b, #8 |
| |
| fmov $ctr1d, $ctr96_b64x @ CTR block 1 |
| rev $rctr32w, $rctr32w @ rev_ctr32 |
| |
| add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 |
| orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w |
| ldr $rk0q, [$cc, #0] @ load rk0 |
| |
| rev $ctr32w, $rctr32w @ CTR block 1 |
| add $rctr32w, $rctr32w, #1 @ CTR block 1 |
| fmov $ctr3d, $ctr96_b64x @ CTR block 3 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 |
| ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 1 |
| rev $ctr32w, $rctr32w @ CTR block 2 |
| |
| fmov $ctr2d, $ctr96_b64x @ CTR block 2 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 |
| add $rctr32w, $rctr32w, #1 @ CTR block 2 |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 2 |
| rev $ctr32w, $rctr32w @ CTR block 3 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 |
| ldr $rk1q, [$cc, #16] @ load rk1 |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 3 |
| fmov $ctr3.d[1], $ctr32x @ CTR block 3 |
| |
| ldr $h3q, [$current_tag, #80] @ load h3l | h3h |
| ext $h3b, $h3b, $h3b, #8 |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 |
| ldr $rk2q, [$cc, #32] @ load rk2 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 |
| ldr $h1q, [$current_tag, #32] @ load h1l | h1h |
| ext $h1b, $h1b, $h1b, #8 |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 |
| ldr $rk8q, [$cc, #128] @ load rk8 |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 |
| ldr $rk3q, [$cc, #48] @ load rk3 |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 |
| trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 |
| ldr $rk6q, [$cc, #96] @ load rk6 |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 |
| ldr $rk7q, [$cc, #112] @ load rk7 |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 |
| trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 |
| ldr $rk5q, [$cc, #80] @ load rk5 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 |
| ldr $h2q, [$current_tag, #64] @ load h2l | h2h |
| ext $h2b, $h2b, $h2b, #8 |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 |
| eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 |
| ldr $rk4q, [$cc, #64] @ load rk4 |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 |
| |
| and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) |
| trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 |
| add $main_end_input_ptr, $main_end_input_ptr, $input_ptr |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 |
| trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 |
| |
| aese $ctr2b, $rk9 @ AES block 2 - round 9 |
| |
| aese $ctr0b, $rk9 @ AES block 0 - round 9 |
| |
| eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k |
| |
| aese $ctr1b, $rk9 @ AES block 1 - round 9 |
| |
| aese $ctr3b, $rk9 @ AES block 3 - round 9 |
| b.ge .L128_enc_tail @ handle tail |
| |
| ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 0 - load plaintext |
| |
| ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 2 - load plaintext |
| |
| ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 1 - load plaintext |
| |
| ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 3 - load plaintext |
| |
| eor $input_l0, $input_l0, $rk10_l @ AES block 0 - round 10 low |
| eor $input_h0, $input_h0, $rk10_h @ AES block 0 - round 10 high |
| |
| eor $input_l2, $input_l2, $rk10_l @ AES block 2 - round 10 low |
| fmov $ctr_t0d, $input_l0 @ AES block 0 - mov low |
| |
| eor $input_l1, $input_l1, $rk10_l @ AES block 1 - round 10 low |
| eor $input_h2, $input_h2, $rk10_h @ AES block 2 - round 10 high |
| fmov $ctr_t0.d[1], $input_h0 @ AES block 0 - mov high |
| |
| fmov $ctr_t1d, $input_l1 @ AES block 1 - mov low |
| eor $input_h1, $input_h1, $rk10_h @ AES block 1 - round 10 high |
| |
| eor $input_l3, $input_l3, $rk10_l @ AES block 3 - round 10 low |
| fmov $ctr_t1.d[1], $input_h1 @ AES block 1 - mov high |
| |
| fmov $ctr_t2d, $input_l2 @ AES block 2 - mov low |
| eor $input_h3, $input_h3, $rk10_h @ AES block 3 - round 10 high |
| rev $ctr32w, $rctr32w @ CTR block 4 |
| |
| fmov $ctr_t2.d[1], $input_h2 @ AES block 2 - mov high |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 |
| |
| eor $res0b, $ctr_t0b, $ctr0b @ AES block 0 - result |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4 |
| |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4 |
| rev $ctr32w, $rctr32w @ CTR block 5 |
| |
| eor $res1b, $ctr_t1b, $ctr1b @ AES block 1 - result |
| fmov $ctr1d, $ctr96_b64x @ CTR block 5 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 5 |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| fmov $ctr1.d[1], $ctr32x @ CTR block 5 |
| |
| fmov $ctr_t3d, $input_l3 @ AES block 3 - mov low |
| rev $ctr32w, $rctr32w @ CTR block 6 |
| st1 { $res0b}, [$output_ptr], #16 @ AES block 0 - store result |
| |
| fmov $ctr_t3.d[1], $input_h3 @ AES block 3 - mov high |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 6 |
| eor $res2b, $ctr_t2b, $ctr2b @ AES block 2 - result |
| st1 { $res1b}, [$output_ptr], #16 @ AES block 1 - store result |
| |
| fmov $ctr2d, $ctr96_b64x @ CTR block 6 |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 6 |
| rev $ctr32w, $rctr32w @ CTR block 7 |
| st1 { $res2b}, [$output_ptr], #16 @ AES block 2 - store result |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 7 |
| |
| eor $res3b, $ctr_t3b, $ctr3b @ AES block 3 - result |
| st1 { $res3b}, [$output_ptr], #16 @ AES block 3 - store result |
| b.ge .L128_enc_prepretail @ do prepretail |
| |
| .L128_enc_main_loop: @ main loop start |
| ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 4k+3 - load plaintext |
| rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) |
| rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 |
| |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| eor $input_h3, $input_h3, $rk10_h @ AES block 4k+3 - round 10 high |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 4k+4 - load plaintext |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| rev $ctr32w, $rctr32w @ CTR block 4k+8 |
| |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| eor $input_h0, $input_h0, $rk10_h @ AES block 4k+4 - round 10 high |
| |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| eor $input_l0, $input_l0, $rk10_l @ AES block 4k+4 - round 10 low |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| movi $mod_constant.8b, #0xc2 |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 4k+5 - load plaintext |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 4k+6 - load plaintext |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| eor $input_l1, $input_l1, $rk10_l @ AES block 4k+5 - round 10 low |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| eor $input_l3, $input_l3, $rk10_l @ AES block 4k+3 - round 10 low |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high |
| |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| fmov $ctr_t3d, $input_l3 @ AES block 4k+3 - mov low |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| fmov $ctr_t1d, $input_l1 @ AES block 4k+5 - mov low |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| eor $input_h1, $input_h1, $rk10_h @ AES block 4k+5 - round 10 high |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| fmov $ctr_t1.d[1], $input_h1 @ AES block 4k+5 - mov high |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| fmov $ctr_t3.d[1], $input_h3 @ AES block 4k+3 - mov high |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| aese $ctr0b, $rk9 @ AES block 4k+4 - round 9 |
| eor $input_l2, $input_l2, $rk10_l @ AES block 4k+6 - round 10 low |
| eor $input_h2, $input_h2, $rk10_h @ AES block 4k+6 - round 10 high |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| fmov $ctr_t2d, $input_l2 @ AES block 4k+6 - mov low |
| |
| aese $ctr1b, $rk9 @ AES block 4k+5 - round 9 |
| fmov $ctr_t2.d[1], $input_h2 @ AES block 4k+6 - mov high |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| eor $res0b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result |
| |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 |
| rev $ctr32w, $rctr32w @ CTR block 4k+9 |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| eor $res1b, $ctr_t1b, $ctr1b @ AES block 4k+5 - result |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 |
| fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 |
| |
| pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 |
| rev $ctr32w, $rctr32w @ CTR block 4k+10 |
| |
| aese $ctr2b, $rk9 @ AES block 4k+6 - round 9 |
| st1 { $res0b}, [$output_ptr], #16 @ AES block 4k+4 - store result |
| eor $res2b, $ctr_t2b, $ctr2b @ AES block 4k+6 - result |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 |
| |
| aese $ctr3b, $rk9 @ AES block 4k+7 - round 9 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| fmov $ctr2d, $ctr96_b64x @ CTR block 4k+10 |
| |
| eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low |
| st1 { $res1b}, [$output_ptr], #16 @ AES block 4k+5 - store result |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 4k+10 |
| st1 { $res2b}, [$output_ptr], #16 @ AES block 4k+6 - store result |
| rev $ctr32w, $rctr32w @ CTR block 4k+11 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+11 |
| eor $res3b, $ctr_t3b, $ctr3b @ AES block 4k+3 - result |
| |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| st1 { $res3b}, [$output_ptr], #16 @ AES block 4k+3 - store result |
| b.lt .L128_enc_main_loop |
| |
| .L128_enc_prepretail: @ PREPRETAIL |
| rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 |
| rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) |
| |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| |
| rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| movi $mod_constant.8b, #0xc2 |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| |
| pmull $t1.1q, $acc_h.1d, $mod_constant.1d |
| eor $acc_mb, $acc_mb, $acc_hb @ karatsuba tidy up |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| ext $acc_hb, $acc_hb, $acc_hb, #8 |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| eor $acc_mb, $acc_mb, $acc_lb |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| eor $acc_mb, $acc_mb, $t1.16b |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| eor $acc_mb, $acc_mb, $acc_hb |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| |
| pmull $t1.1q, $acc_m.1d, $mod_constant.1d |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| ext $acc_mb, $acc_mb, $acc_mb, #8 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| eor $acc_lb, $acc_lb, $t1.16b |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| |
| aese $ctr3b, $rk9 @ AES block 4k+7 - round 9 |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| |
| aese $ctr0b, $rk9 @ AES block 4k+4 - round 9 |
| |
| aese $ctr1b, $rk9 @ AES block 4k+5 - round 9 |
| eor $acc_lb, $acc_lb, $acc_mb |
| |
| aese $ctr2b, $rk9 @ AES block 4k+6 - round 9 |
| .L128_enc_tail: @ TAIL |
| |
| sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES block 4k+4 - load plaintext |
| |
| cmp $main_end_input_ptr, #48 |
| |
| ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag |
| eor $input_l0, $input_l0, $rk10_l @ AES block 4k+4 - round 10 low |
| eor $input_h0, $input_h0, $rk10_h @ AES block 4k+4 - round 10 high |
| |
| fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low |
| |
| fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high |
| |
| eor $res1b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result |
| |
| b.gt .L128_enc_blocks_more_than_3 |
| |
| sub $rctr32w, $rctr32w, #1 |
| movi $acc_l.8b, #0 |
| mov $ctr3b, $ctr2b |
| |
| cmp $main_end_input_ptr, #32 |
| mov $ctr2b, $ctr1b |
| movi $acc_h.8b, #0 |
| |
| movi $acc_m.8b, #0 |
| b.gt .L128_enc_blocks_more_than_2 |
| |
| mov $ctr3b, $ctr1b |
| cmp $main_end_input_ptr, #16 |
| |
| sub $rctr32w, $rctr32w, #1 |
| b.gt .L128_enc_blocks_more_than_1 |
| |
| sub $rctr32w, $rctr32w, #1 |
| b .L128_enc_blocks_less_than_1 |
| .L128_enc_blocks_more_than_3: @ blocks left > 3 |
| st1 { $res1b}, [$output_ptr], #16 @ AES final-3 block - store result |
| |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-2 block - load input low & high |
| |
| rev64 $res0b, $res1b @ GHASH final-3 block |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| eor $input_h0, $input_h0, $rk10_h @ AES final-2 block - round 10 high |
| eor $input_l0, $input_l0, $rk10_l @ AES final-2 block - round 10 low |
| |
| fmov $res1d, $input_l0 @ AES final-2 block - mov low |
| |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| fmov $res1.d[1], $input_h0 @ AES final-2 block - mov high |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low |
| mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high |
| |
| mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid |
| |
| eor $res1b, $res1b, $ctr1b @ AES final-2 block - result |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid |
| |
| pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid |
| .L128_enc_blocks_more_than_2: @ blocks left > 2 |
| |
| st1 { $res1b}, [$output_ptr], #16 @ AES final-2 block - store result |
| |
| rev64 $res0b, $res1b @ GHASH final-2 block |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-1 block - load input low & high |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| eor $input_l0, $input_l0, $rk10_l @ AES final-1 block - round 10 low |
| |
| fmov $res1d, $input_l0 @ AES final-1 block - mov low |
| eor $input_h0, $input_h0, $rk10_h @ AES final-1 block - round 10 high |
| |
| pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high |
| fmov $res1.d[1], $input_h0 @ AES final-1 block - mov high |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid |
| |
| pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid |
| |
| eor $res1b, $res1b, $ctr2b @ AES final-1 block - result |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low |
| |
| pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid |
| |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid |
| .L128_enc_blocks_more_than_1: @ blocks left > 1 |
| |
| st1 { $res1b}, [$output_ptr], #16 @ AES final-1 block - store result |
| |
| rev64 $res0b, $res1b @ GHASH final-1 block |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final block - load input low & high |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| eor $input_h0, $input_h0, $rk10_h @ AES final block - round 10 high |
| eor $input_l0, $input_l0, $rk10_l @ AES final block - round 10 low |
| |
| fmov $res1d, $input_l0 @ AES final block - mov low |
| |
| pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high |
| fmov $res1.d[1], $input_h0 @ AES final block - mov high |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid |
| |
| pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid |
| |
| eor $res1b, $res1b, $ctr3b @ AES final block - result |
| |
| ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid |
| |
| pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high |
| |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| .L128_enc_blocks_less_than_1: @ blocks left <= 1 |
| |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| mvn $rk10_l, xzr @ rk10_l = 0xffffffffffffffff |
| |
| mvn $rk10_h, xzr @ rk10_h = 0xffffffffffffffff |
| sub $bit_length, $bit_length, #128 @ bit_length -= 128 |
| |
| neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) |
| |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| |
| lsr $rk10_h, $rk10_h, $bit_length @ rk10_h is mask for top 64b of last block |
| cmp $bit_length, #64 |
| |
| csel $input_l0, $rk10_l, $rk10_h, lt |
| csel $input_h0, $rk10_h, xzr, lt |
| |
| fmov $ctr0d, $input_l0 @ ctr0b is mask for last block |
| |
| fmov $ctr0.d[1], $input_h0 |
| |
| and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits |
| |
| rev64 $res0b, $res1b @ GHASH final block |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| mov $t0d, $res0.d[1] @ GHASH final block - mid |
| |
| pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low |
| ld1 { $rk0}, [$output_ptr] @ load existing bytes where the possibly partial last block is to be stored |
| |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid |
| |
| rev $ctr32w, $rctr32w |
| |
| pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high |
| |
| pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high |
| |
| eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid |
| movi $mod_constant.8b, #0xc2 |
| |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| bif $res1b, $rk0, $ctr0b @ insert existing bytes in top end of result before storing |
| |
| eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low |
| st1 { $res1b}, [$output_ptr] @ store all 16B |
| |
| str $ctr32w, [$counter, #12] @ store the updated counter |
| |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| mov x0, $len |
| st1 { $acc_l.16b }, [$current_tag] |
| ldp x21, x22, [sp, #16] |
| ldp x23, x24, [sp, #32] |
| ldp d8, d9, [sp, #48] |
| ldp d10, d11, [sp, #64] |
| ldp d12, d13, [sp, #80] |
| ldp d14, d15, [sp, #96] |
| ldp x19, x20, [sp], #112 |
| ret |
| |
| .L128_enc_ret: |
| mov w0, #0x0 |
| ret |
| .size aes_gcm_enc_128_kernel,.-aes_gcm_enc_128_kernel |
| ___ |
| |
| ######################################################################################### |
| # size_t aes_gcm_dec_128_kernel(const unsigned char *in, |
| # size_t len, |
| # unsigned char *out, |
| # const void *key, |
| # unsigned char ivec[16], |
| # u64 *Xi); |
| # |
| $code.=<<___; |
| .global aes_gcm_dec_128_kernel |
| .type aes_gcm_dec_128_kernel,%function |
| .align 4 |
| aes_gcm_dec_128_kernel: |
| AARCH64_VALID_CALL_TARGET |
| cbz x1, .L128_dec_ret |
| stp x19, x20, [sp, #-112]! |
| mov x16, x4 |
| mov x8, x5 |
| stp x21, x22, [sp, #16] |
| stp x23, x24, [sp, #32] |
| stp d8, d9, [sp, #48] |
| stp d10, d11, [sp, #64] |
| stp d12, d13, [sp, #80] |
| stp d14, d15, [sp, #96] |
| |
| lsr $main_end_input_ptr, $bit_length, #3 @ byte_len |
| mov $len, $main_end_input_ptr |
| ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 |
| |
| sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 |
| ldr $rk0q, [$cc, #0] @ load rk0 |
| |
| and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) |
| ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible |
| |
| ldr $h2q, [$current_tag, #64] @ load h2l | h2h |
| ext $h2b, $h2b, $h2b, #8 |
| |
| lsr $rctr32x, $ctr96_t32x, #32 |
| fmov $ctr2d, $ctr96_b64x @ CTR block 2 |
| |
| ldr $rk1q, [$cc, #16] @ load rk1 |
| orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w |
| rev $rctr32w, $rctr32w @ rev_ctr32 |
| |
| fmov $ctr1d, $ctr96_b64x @ CTR block 1 |
| add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 |
| rev $ctr32w, $rctr32w @ CTR block 1 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 |
| ldr $rk2q, [$cc, #32] @ load rk2 |
| add $rctr32w, $rctr32w, #1 @ CTR block 1 |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 1 |
| rev $ctr32w, $rctr32w @ CTR block 2 |
| add $rctr32w, $rctr32w, #1 @ CTR block 2 |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 2 |
| rev $ctr32w, $rctr32w @ CTR block 3 |
| |
| fmov $ctr3d, $ctr96_b64x @ CTR block 3 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 |
| add $rctr32w, $rctr32w, #1 @ CTR block 3 |
| |
| fmov $ctr3.d[1], $ctr32x @ CTR block 3 |
| add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 |
| ldr $rk3q, [$cc, #48] @ load rk3 |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 |
| ldr $rk6q, [$cc, #96] @ load rk6 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 |
| ldr $rk7q, [$cc, #112] @ load rk7 |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 |
| ldr $rk4q, [$cc, #64] @ load rk4 |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 |
| ldp $rk10_l, $rk10_h, [$cc, #160] @ load rk10 |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 |
| ld1 { $acc_lb}, [$current_tag] |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 |
| ldr $rk5q, [$cc, #80] @ load rk5 |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 |
| ldr $rk9q, [$cc, #144] @ load rk9 |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 |
| ldr $h3q, [$current_tag, #80] @ load h3l | h3h |
| ext $h3b, $h3b, $h3b, #8 |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 |
| ldr $rk8q, [$cc, #128] @ load rk8 |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 |
| ldr $h1q, [$current_tag, #32] @ load h1l | h1h |
| ext $h1b, $h1b, $h1b, #8 |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 |
| trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h |
| |
| ldr $h4q, [$current_tag, #112] @ load h4l | h4h |
| ext $h4b, $h4b, $h4b, #8 |
| trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l |
| add $main_end_input_ptr, $main_end_input_ptr, $input_ptr |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 |
| eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 |
| trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 |
| trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h |
| |
| aese $ctr2b, $rk9 @ AES block 2 - round 9 |
| |
| aese $ctr3b, $rk9 @ AES block 3 - round 9 |
| |
| aese $ctr0b, $rk9 @ AES block 0 - round 9 |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks |
| |
| aese $ctr1b, $rk9 @ AES block 1 - round 9 |
| eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k |
| b.ge .L128_dec_tail @ handle tail |
| |
| ldr $res1q, [$input_ptr, #16] @ AES block 1 - load ciphertext |
| |
| ldr $res0q, [$input_ptr, #0] @ AES block 0 - load ciphertext |
| |
| eor $ctr1b, $res1b, $ctr1b @ AES block 1 - result |
| ldr $res2q, [$input_ptr, #32] @ AES block 2 - load ciphertext |
| |
| eor $ctr0b, $res0b, $ctr0b @ AES block 0 - result |
| rev64 $res0b, $res0b @ GHASH block 0 |
| rev $ctr32w, $rctr32w @ CTR block 4 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4 |
| ldr $res3q, [$input_ptr, #48] @ AES block 3 - load ciphertext |
| |
| rev64 $res1b, $res1b @ GHASH block 1 |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| mov $output_l1, $ctr1.d[0] @ AES block 1 - mov low |
| |
| mov $output_h1, $ctr1.d[1] @ AES block 1 - mov high |
| |
| mov $output_l0, $ctr0.d[0] @ AES block 0 - mov low |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks |
| |
| mov $output_h0, $ctr0.d[1] @ AES block 0 - mov high |
| |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4 |
| |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4 |
| rev $ctr32w, $rctr32w @ CTR block 5 |
| eor $output_l1, $output_l1, $rk10_l @ AES block 1 - round 10 low |
| |
| fmov $ctr1d, $ctr96_b64x @ CTR block 5 |
| add $rctr32w, $rctr32w, #1 @ CTR block 5 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 5 |
| rev $ctr32w, $rctr32w @ CTR block 6 |
| add $rctr32w, $rctr32w, #1 @ CTR block 6 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 |
| |
| eor $output_h1, $output_h1, $rk10_h @ AES block 1 - round 10 high |
| eor $output_l0, $output_l0, $rk10_l @ AES block 0 - round 10 low |
| eor $ctr2b, $res2b, $ctr2b @ AES block 2 - result |
| |
| eor $output_h0, $output_h0, $rk10_h @ AES block 0 - round 10 high |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 0 - store result |
| |
| stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 1 - store result |
| b.ge .L128_dec_prepretail @ do prepretail |
| |
| .L128_dec_main_loop: @ main loop start |
| eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 |
| |
| rev64 $res2b, $res2b @ GHASH block 4k+2 |
| fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 |
| rev $ctr32w, $rctr32w @ CTR block 4k+7 |
| |
| mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| rev64 $res3b, $res3b @ GHASH block 4k+3 |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| eor $output_l3, $output_l3, $rk10_l @ AES block 4k+3 - round 10 low |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| eor $output_h2, $output_h2, $rk10_h @ AES block 4k+2 - round 10 high |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| eor $output_h3, $output_h3, $rk10_h @ AES block 4k+3 - round 10 high |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| eor $output_l2, $output_l2, $rk10_l @ AES block 4k+2 - round 10 low |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| movi $mod_constant.8b, #0xc2 |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| ldr $res0q, [$input_ptr, #0] @ AES block 4k+4 - load ciphertext |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| rev $ctr32w, $rctr32w @ CTR block 4k+8 |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| ldr $res1q, [$input_ptr, #16] @ AES block 4k+5 - load ciphertext |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| aese $ctr0b, $rk9 @ AES block 4k+4 - round 9 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| aese $ctr1b, $rk9 @ AES block 4k+5 - round 9 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| eor $ctr0b, $res0b, $ctr0b @ AES block 4k+4 - result |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| ldr $res2q, [$input_ptr, #32] @ AES block 4k+6 - load ciphertext |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| eor $ctr1b, $res1b, $ctr1b @ AES block 4k+5 - result |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| ldr $res3q, [$input_ptr, #48] @ AES block 4k+3 - load ciphertext |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| |
| rev64 $res1b, $res1b @ GHASH block 4k+5 |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 |
| |
| pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 |
| rev $ctr32w, $rctr32w @ CTR block 4k+9 |
| |
| aese $ctr2b, $rk9 @ AES block 4k+6 - round 9 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| eor $output_h0, $output_h0, $rk10_h @ AES block 4k+4 - round 10 high |
| |
| eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low |
| mov $output_h1, $ctr1.d[1] @ AES block 4k+5 - mov high |
| eor $output_l0, $output_l0, $rk10_l @ AES block 4k+4 - round 10 low |
| |
| eor $ctr2b, $res2b, $ctr2b @ AES block 4k+6 - result |
| mov $output_l1, $ctr1.d[0] @ AES block 4k+5 - mov low |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 |
| |
| aese $ctr3b, $rk9 @ AES block 4k+7 - round 9 |
| fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 |
| cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL |
| |
| rev64 $res0b, $res0b @ GHASH block 4k+4 |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 |
| |
| rev $ctr32w, $rctr32w @ CTR block 4k+10 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 |
| |
| eor $output_h1, $output_h1, $rk10_h @ AES block 4k+5 - round 10 high |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 4k+4 - store result |
| |
| eor $output_l1, $output_l1, $rk10_l @ AES block 4k+5 - round 10 low |
| stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 4k+5 - store result |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 |
| b.lt L128_dec_main_loop |
| |
| .L128_dec_prepretail: @ PREPRETAIL |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high |
| |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 |
| rev64 $res2b, $res2b @ GHASH block 4k+2 |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 |
| |
| rev $ctr32w, $rctr32w @ CTR block 4k+7 |
| mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| |
| rev64 $res3b, $res3b @ GHASH block 4k+3 |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| movi $mod_constant.8b, #0xc2 |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| eor $output_l3, $output_l3, $rk10_l @ AES block 4k+3 - round 10 low |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| eor $output_l2, $output_l2, $rk10_l @ AES block 4k+2 - round 10 low |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| |
| aese $ctr1b, $rk9 @ AES block 4k+5 - round 9 |
| |
| pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| eor $output_h3, $output_h3, $rk10_h @ AES block 4k+3 - round 10 high |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| eor $output_h2, $output_h2, $rk10_h @ AES block 4k+2 - round 10 high |
| |
| aese $ctr0b, $rk9 @ AES block 4k+4 - round 9 |
| stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result |
| |
| aese $ctr2b, $rk9 @ AES block 4k+6 - round 9 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 |
| stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result |
| |
| aese $ctr3b, $rk9 @ AES block 4k+7 - round 9 |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| .L128_dec_tail: @ TAIL |
| |
| sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process |
| ld1 { $res1b}, [$input_ptr], #16 @ AES block 4k+4 - load ciphertext |
| |
| eor $ctr0b, $res1b, $ctr0b @ AES block 4k+4 - result |
| |
| mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high |
| |
| mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low |
| |
| cmp $main_end_input_ptr, #48 |
| |
| eor $output_h0, $output_h0, $rk10_h @ AES block 4k+4 - round 10 high |
| |
| ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag |
| eor $output_l0, $output_l0, $rk10_l @ AES block 4k+4 - round 10 low |
| b.gt .L128_dec_blocks_more_than_3 |
| |
| mov $ctr3b, $ctr2b |
| sub $rctr32w, $rctr32w, #1 |
| movi $acc_l.8b, #0 |
| |
| movi $acc_h.8b, #0 |
| mov $ctr2b, $ctr1b |
| |
| movi $acc_m.8b, #0 |
| cmp $main_end_input_ptr, #32 |
| b.gt .L128_dec_blocks_more_than_2 |
| |
| cmp $main_end_input_ptr, #16 |
| |
| mov $ctr3b, $ctr1b |
| sub $rctr32w, $rctr32w, #1 |
| b.gt .L128_dec_blocks_more_than_1 |
| |
| sub $rctr32w, $rctr32w, #1 |
| b .L128_dec_blocks_less_than_1 |
| .L128_dec_blocks_more_than_3: @ blocks left > 3 |
| rev64 $res0b, $res1b @ GHASH final-3 block |
| ld1 { $res1b}, [$input_ptr], #16 @ AES final-2 block - load ciphertext |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-3 block - store result |
| eor $ctr0b, $res1b, $ctr1b @ AES final-2 block - result |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid |
| mov $output_h0, $ctr0.d[1] @ AES final-2 block - mov high |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low |
| mov $output_l0, $ctr0.d[0] @ AES final-2 block - mov low |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid |
| |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| eor $output_h0, $output_h0, $rk10_h @ AES final-2 block - round 10 high |
| |
| pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid |
| eor $output_l0, $output_l0, $rk10_l @ AES final-2 block - round 10 low |
| .L128_dec_blocks_more_than_2: @ blocks left > 2 |
| |
| rev64 $res0b, $res1b @ GHASH final-2 block |
| ld1 { $res1b}, [$input_ptr], #16 @ AES final-1 block - load ciphertext |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| eor $ctr0b, $res1b, $ctr2b @ AES final-1 block - result |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-2 block - store result |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid |
| |
| pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low |
| |
| pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high |
| mov $output_l0, $ctr0.d[0] @ AES final-1 block - mov low |
| |
| mov $output_h0, $ctr0.d[1] @ AES final-1 block - mov high |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid |
| |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid |
| |
| eor $output_l0, $output_l0, $rk10_l @ AES final-1 block - round 10 low |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high |
| |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid |
| eor $output_h0, $output_h0, $rk10_h @ AES final-1 block - round 10 high |
| .L128_dec_blocks_more_than_1: @ blocks left > 1 |
| |
| rev64 $res0b, $res1b @ GHASH final-1 block |
| |
| ld1 { $res1b}, [$input_ptr], #16 @ AES final block - load ciphertext |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid |
| |
| eor $ctr0b, $res1b, $ctr3b @ AES final block - result |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid |
| |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-1 block - store result |
| mov $output_l0, $ctr0.d[0] @ AES final block - mov low |
| |
| mov $output_h0, $ctr0.d[1] @ AES final block - mov high |
| ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid |
| |
| pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low |
| |
| pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high |
| |
| pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high |
| eor $output_h0, $output_h0, $rk10_h @ AES final block - round 10 high |
| |
| eor $output_l0, $output_l0, $rk10_l @ AES final block - round 10 low |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid |
| .L128_dec_blocks_less_than_1: @ blocks left <= 1 |
| |
| mvn $rk10_h, xzr @ rk10_h = 0xffffffffffffffff |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| |
| mvn $rk10_l, xzr @ rk10_l = 0xffffffffffffffff |
| sub $bit_length, $bit_length, #128 @ bit_length -= 128 |
| |
| neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) |
| |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| |
| lsr $rk10_h, $rk10_h, $bit_length @ rk10_h is mask for top 64b of last block |
| cmp $bit_length, #64 |
| |
| csel $ctr96_b64x, $rk10_h, xzr, lt |
| csel $ctr32x, $rk10_l, $rk10_h, lt |
| |
| fmov $ctr0d, $ctr32x @ ctr0b is mask for last block |
| |
| mov $ctr0.d[1], $ctr96_b64x |
| |
| and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits |
| |
| rev64 $res0b, $res1b @ GHASH final block |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| ldp $end_input_ptr, $main_end_input_ptr, [$output_ptr] @ load existing bytes we need to not overwrite |
| |
| and $output_h0, $output_h0, $ctr96_b64x |
| |
| pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high |
| mov $t0d, $res0.d[1] @ GHASH final block - mid |
| |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high |
| |
| pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid |
| |
| pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low |
| bic $end_input_ptr, $end_input_ptr, $ctr32x @ mask out low existing bytes |
| and $output_l0, $output_l0, $ctr32x |
| |
| rev $ctr32w, $rctr32w |
| |
| eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid |
| movi $mod_constant.8b, #0xc2 |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low |
| |
| bic $main_end_input_ptr, $main_end_input_ptr, $ctr96_b64x @ mask out high existing bytes |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| orr $output_l0, $output_l0, $end_input_ptr |
| str $ctr32w, [$counter, #12] @ store the updated counter |
| |
| orr $output_h0, $output_h0, $main_end_input_ptr |
| stp $output_l0, $output_h0, [$output_ptr] |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low |
| |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| mov x0, $len |
| st1 { $acc_l.16b }, [$current_tag] |
| |
| ldp x21, x22, [sp, #16] |
| ldp x23, x24, [sp, #32] |
| ldp d8, d9, [sp, #48] |
| ldp d10, d11, [sp, #64] |
| ldp d12, d13, [sp, #80] |
| ldp d14, d15, [sp, #96] |
| ldp x19, x20, [sp], #112 |
| ret |
| |
| .L128_dec_ret: |
| mov w0, #0x0 |
| ret |
| .size aes_gcm_dec_128_kernel,.-aes_gcm_dec_128_kernel |
| ___ |
| } |
| |
| { |
| my ($end_input_ptr,$main_end_input_ptr,$input_l0,$input_h0)=map("x$_",(4..7)); |
| my ($input_l1,$input_h1,$input_l2,$input_h2,$input_l3,$input_h3)=map("x$_",(19..24)); |
| my ($output_l1,$output_h1,$output_l2,$output_h2,$output_l3,$output_h3)=map("x$_",(19..24)); |
| my ($output_l0,$output_h0)=map("x$_",(6..7)); |
| |
| my $ctr32w="w9"; |
| my ($ctr32x,$ctr96_b64x,$ctr96_t32x,$rctr32x,$rk12_l,$rk12_h,$len)=map("x$_",(9..15)); |
| my ($ctr96_t32w,$rctr32w)=map("w$_",(11..12)); |
| |
| my ($ctr0b,$ctr1b,$ctr2b,$ctr3b,$res0b,$res1b,$res2b,$res3b)=map("v$_.16b",(0..7)); |
| my ($ctr0,$ctr1,$ctr2,$ctr3,$res0,$res1,$res2,$res3)=map("v$_",(0..7)); |
| my ($ctr0d,$ctr1d,$ctr2d,$ctr3d,$res0d,$res1d,$res2d,$res3d)=map("d$_",(0..7)); |
| my ($res0q,$res1q,$res2q,$res3q)=map("q$_",(4..7)); |
| |
| my ($acc_hb,$acc_mb,$acc_lb)=map("v$_.16b",(9..11)); |
| my ($acc_h,$acc_m,$acc_l)=map("v$_",(9..11)); |
| my ($acc_hd,$acc_md,$acc_ld)=map("d$_",(9..11)); |
| |
| my ($h1,$h2,$h3,$h4,$h12k,$h34k)=map("v$_",(12..17)); |
| my ($h1q,$h2q,$h3q,$h4q)=map("q$_",(12..15)); |
| my ($h1b,$h2b,$h3b,$h4b)=map("v$_.16b",(12..15)); |
| |
| my $t0="v8"; |
| my $t0d="d8"; |
| my $t3="v4"; |
| my $t3d="d4"; |
| |
| my ($t1,$t2)=map("v$_",(30..31)); |
| my ($t1d,$t2d)=map("d$_",(30..31)); |
| |
| my $t4="v30"; |
| my $t4d="d30"; |
| my $t5="v8"; |
| my $t5d="d8"; |
| my $t6="v31"; |
| my $t6d="d31"; |
| |
| my $t7="v5"; |
| my $t7d="d5"; |
| my $t8="v6"; |
| my $t8d="d6"; |
| my $t9="v30"; |
| my $t9d="d30"; |
| |
| my ($ctr_t0,$ctr_t1,$ctr_t2,$ctr_t3)=map("v$_",(4..7)); |
| my ($ctr_t0d,$ctr_t1d,$ctr_t2d,$ctr_t3d)=map("d$_",(4..7)); |
| my ($ctr_t0b,$ctr_t1b,$ctr_t2b,$ctr_t3b)=map("v$_.16b",(4..7)); |
| |
| my $mod_constantd="d8"; |
| my $mod_constant="v8"; |
| my $mod_t="v31"; |
| |
| my ($rk0,$rk1,$rk2,$rk3,$rk4,$rk5,$rk6,$rk7,$rk8,$rk9,$rk10,$rk11)=map("v$_.16b",(18..29)); |
| my ($rk0q,$rk1q,$rk2q,$rk3q,$rk4q,$rk5q,$rk6q,$rk7q,$rk8q,$rk9q,$rk10q,$rk11q)=map("q$_",(18..29)); |
| my $rk2q1="v20.1q"; |
| my $rk3q1="v21.1q"; |
| my $rk4v="v22"; |
| my $rk4d="d22"; |
| |
| ######################################################################################### |
| # size_t aes_gcm_enc_192_kernel(const unsigned char *in, |
| # size_t len, |
| # unsigned char *out, |
| # const void *key, |
| # unsigned char ivec[16], |
| # u64 *Xi); |
| # |
| $code.=<<___; |
| .global aes_gcm_enc_192_kernel |
| .type aes_gcm_enc_192_kernel,%function |
| .align 4 |
| aes_gcm_enc_192_kernel: |
| AARCH64_VALID_CALL_TARGET |
| cbz x1, .L192_enc_ret |
| stp x19, x20, [sp, #-112]! |
| mov x16, x4 |
| mov x8, x5 |
| stp x21, x22, [sp, #16] |
| stp x23, x24, [sp, #32] |
| stp d8, d9, [sp, #48] |
| stp d10, d11, [sp, #64] |
| stp d12, d13, [sp, #80] |
| stp d14, d15, [sp, #96] |
| |
| ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 |
| |
| ldr $rk5q, [$cc, #80] @ load rk5 |
| |
| ldr $rk4q, [$cc, #64] @ load rk4 |
| |
| ldr $rk8q, [$cc, #128] @ load rk8 |
| |
| lsr $rctr32x, $ctr96_t32x, #32 |
| ldr $rk6q, [$cc, #96] @ load rk6 |
| orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w |
| |
| ldr $rk7q, [$cc, #112] @ load rk7 |
| rev $rctr32w, $rctr32w @ rev_ctr32 |
| |
| add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 |
| fmov $ctr3d, $ctr96_b64x @ CTR block 3 |
| |
| rev $ctr32w, $rctr32w @ CTR block 1 |
| add $rctr32w, $rctr32w, #1 @ CTR block 1 |
| fmov $ctr1d, $ctr96_b64x @ CTR block 1 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 |
| ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 1 |
| rev $ctr32w, $rctr32w @ CTR block 2 |
| add $rctr32w, $rctr32w, #1 @ CTR block 2 |
| |
| fmov $ctr2d, $ctr96_b64x @ CTR block 2 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 2 |
| rev $ctr32w, $rctr32w @ CTR block 3 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 |
| ldr $rk0q, [$cc, #0] @ load rk0 |
| |
| fmov $ctr3.d[1], $ctr32x @ CTR block 3 |
| |
| ldr $rk3q, [$cc, #48] @ load rk3 |
| |
| ldp $rk12_l, $rk12_h, [$cc, #192] @ load rk12 |
| |
| ldr $rk1q, [$cc, #16] @ load rk1 |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 |
| ld1 { $acc_lb}, [$current_tag] |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 |
| ldr $rk11q, [$cc, #176] @ load rk11 |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 |
| ldr $h4q, [$current_tag, #112] @ load h4l | h4h |
| ext $h4b, $h4b, $h4b, #8 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 |
| ldr $rk2q, [$cc, #32] @ load rk2 |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 |
| ldr $rk10q, [$cc, #160] @ load rk10 |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 |
| ldr $h1q, [$current_tag, #32] @ load h1l | h1h |
| ext $h1b, $h1b, $h1b, #8 |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 |
| ldr $rk9q, [$cc, #144] @ load rk9 |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 |
| ldr $h3q, [$current_tag, #80] @ load h3l | h3h |
| ext $h3b, $h3b, $h3b, #8 |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 |
| trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 |
| trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 |
| ldr $h2q, [$current_tag, #64] @ load h2l | h2h |
| ext $h2b, $h2b, $h2b, #8 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 |
| trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 |
| trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 9 |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 9 |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 9 |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 9 |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 10 |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 10 |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 10 |
| lsr $main_end_input_ptr, $bit_length, #3 @ byte_len |
| mov $len, $main_end_input_ptr |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 10 |
| sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 |
| |
| eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k |
| and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) |
| |
| eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k |
| |
| aese $ctr2b, $rk11 @ AES block 2 - round 11 |
| add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr |
| add $main_end_input_ptr, $main_end_input_ptr, $input_ptr |
| |
| aese $ctr1b, $rk11 @ AES block 1 - round 11 |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks |
| |
| aese $ctr0b, $rk11 @ AES block 0 - round 11 |
| add $rctr32w, $rctr32w, #1 @ CTR block 3 |
| |
| aese $ctr3b, $rk11 @ AES block 3 - round 11 |
| b.ge .L192_enc_tail @ handle tail |
| |
| rev $ctr32w, $rctr32w @ CTR block 4 |
| ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 0 - load plaintext |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 |
| ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 2 - load plaintext |
| |
| ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 3 - load plaintext |
| |
| ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 1 - load plaintext |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks |
| |
| eor $input_l0, $input_l0, $rk12_l @ AES block 0 - round 12 low |
| |
| eor $input_h0, $input_h0, $rk12_h @ AES block 0 - round 12 high |
| eor $input_h2, $input_h2, $rk12_h @ AES block 2 - round 12 high |
| fmov $ctr_t0d, $input_l0 @ AES block 0 - mov low |
| |
| eor $input_h3, $input_h3, $rk12_h @ AES block 3 - round 12 high |
| fmov $ctr_t0.d[1], $input_h0 @ AES block 0 - mov high |
| |
| eor $input_l2, $input_l2, $rk12_l @ AES block 2 - round 12 low |
| eor $input_l1, $input_l1, $rk12_l @ AES block 1 - round 12 low |
| |
| fmov $ctr_t1d, $input_l1 @ AES block 1 - mov low |
| eor $input_h1, $input_h1, $rk12_h @ AES block 1 - round 12 high |
| |
| fmov $ctr_t1.d[1], $input_h1 @ AES block 1 - mov high |
| |
| eor $input_l3, $input_l3, $rk12_l @ AES block 3 - round 12 low |
| fmov $ctr_t2d, $input_l2 @ AES block 2 - mov low |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 4 |
| eor $res0b, $ctr_t0b, $ctr0b @ AES block 0 - result |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4 |
| |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4 |
| rev $ctr32w, $rctr32w @ CTR block 5 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 |
| add $rctr32w, $rctr32w, #1 @ CTR block 5 |
| |
| fmov $ctr_t3d, $input_l3 @ AES block 3 - mov low |
| st1 { $res0b}, [$output_ptr], #16 @ AES block 0 - store result |
| |
| fmov $ctr_t2.d[1], $input_h2 @ AES block 2 - mov high |
| |
| eor $res1b, $ctr_t1b, $ctr1b @ AES block 1 - result |
| fmov $ctr1d, $ctr96_b64x @ CTR block 5 |
| st1 { $res1b}, [$output_ptr], #16 @ AES block 1 - store result |
| |
| fmov $ctr_t3.d[1], $input_h3 @ AES block 3 - mov high |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 5 |
| rev $ctr32w, $rctr32w @ CTR block 6 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 6 |
| eor $res2b, $ctr_t2b, $ctr2b @ AES block 2 - result |
| fmov $ctr2d, $ctr96_b64x @ CTR block 6 |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 6 |
| rev $ctr32w, $rctr32w @ CTR block 7 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 7 |
| st1 { $res2b}, [$output_ptr], #16 @ AES block 2 - store result |
| |
| eor $res3b, $ctr_t3b, $ctr3b @ AES block 3 - result |
| st1 { $res3b}, [$output_ptr], #16 @ AES block 3 - store result |
| b.ge .L192_enc_prepretail @ do prepretail |
| |
| .L192_enc_main_loop: @ main loop start |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 4k+5 - load plaintext |
| |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 |
| rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) |
| ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 4k+6 - load plaintext |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 4k+3 - load plaintext |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| eor $input_h3, $input_h3, $rk12_h @ AES block 4k+3 - round 12 high |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| eor $input_l2, $input_l2, $rk12_l @ AES block 4k+6 - round 12 low |
| |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| eor $input_l1, $input_l1, $rk12_l @ AES block 4k+5 - round 12 low |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| eor $input_h1, $input_h1, $rk12_h @ AES block 4k+5 - round 12 high |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| eor $input_h2, $input_h2, $rk12_h @ AES block 4k+6 - round 12 high |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| eor $input_l3, $input_l3, $rk12_l @ AES block 4k+3 - round 12 low |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| rev $ctr32w, $rctr32w @ CTR block 4k+8 |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 4k+4 - load plaintext |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| movi $mod_constant.8b, #0xc2 |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| eor $input_h0, $input_h0, $rk12_h @ AES block 4k+4 - round 12 high |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| eor $input_l0, $input_l0, $rk12_l @ AES block 4k+4 - round 12 low |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| fmov $ctr_t1d, $input_l1 @ AES block 4k+5 - mov low |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| fmov $ctr_t1.d[1], $input_h1 @ AES block 4k+5 - mov high |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL |
| fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| fmov $ctr_t3d, $input_l3 @ AES block 4k+3 - mov low |
| |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| fmov $ctr_t3.d[1], $input_h3 @ AES block 4k+3 - mov high |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| fmov $ctr_t2d, $input_l2 @ AES block 4k+6 - mov low |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 |
| |
| aese $ctr0b, $rk11 @ AES block 4k+4 - round 11 |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 |
| |
| eor $res0b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 |
| |
| aese $ctr1b, $rk11 @ AES block 4k+5 - round 11 |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 |
| rev $ctr32w, $rctr32w @ CTR block 4k+9 |
| |
| pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| fmov $ctr_t2.d[1], $input_h2 @ AES block 4k+6 - mov high |
| st1 { $res0b}, [$output_ptr], #16 @ AES block 4k+4 - store result |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 |
| |
| eor $res1b, $ctr_t1b, $ctr1b @ AES block 4k+5 - result |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 |
| fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 |
| |
| aese $ctr2b, $rk11 @ AES block 4k+6 - round 11 |
| fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 |
| rev $ctr32w, $rctr32w @ CTR block 4k+10 |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 |
| |
| st1 { $res1b}, [$output_ptr], #16 @ AES block 4k+5 - store result |
| eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low |
| |
| aese $ctr3b, $rk11 @ AES block 4k+7 - round 11 |
| eor $res2b, $ctr_t2b, $ctr2b @ AES block 4k+6 - result |
| fmov $ctr2d, $ctr96_b64x @ CTR block 4k+10 |
| |
| st1 { $res2b}, [$output_ptr], #16 @ AES block 4k+6 - store result |
| fmov $ctr2.d[1], $ctr32x @ CTR block 4k+10 |
| rev $ctr32w, $rctr32w @ CTR block 4k+11 |
| |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+11 |
| |
| eor $res3b, $ctr_t3b, $ctr3b @ AES block 4k+3 - result |
| st1 { $res3b}, [$output_ptr], #16 @ AES block 4k+3 - store result |
| b.lt .L192_enc_main_loop |
| |
| .L192_enc_prepretail: @ PREPRETAIL |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) |
| |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| movi $mod_constant.8b, #0xc2 |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| eor $acc_mb, $acc_mb, $acc_hb @ karatsuba tidy up |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| eor $acc_mb, $acc_mb, $acc_lb |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| |
| pmull $t1.1q, $acc_h.1d, $mod_constant.1d |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| ext $acc_hb, $acc_hb, $acc_hb, #8 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| eor $acc_mb, $acc_mb, $t1.16b |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| eor $acc_mb, $acc_mb, $acc_hb |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 |
| |
| pmull $t1.1q, $acc_m.1d, $mod_constant.1d |
| |
| ext $acc_mb, $acc_mb, $acc_mb, #8 |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 |
| eor $acc_lb, $acc_lb, $t1.16b |
| |
| aese $ctr0b, $rk11 @ AES block 4k+4 - round 11 |
| |
| aese $ctr3b, $rk11 @ AES block 4k+7 - round 11 |
| |
| aese $ctr2b, $rk11 @ AES block 4k+6 - round 11 |
| |
| aese $ctr1b, $rk11 @ AES block 4k+5 - round 11 |
| eor $acc_lb, $acc_lb, $acc_mb |
| .L192_enc_tail: @ TAIL |
| |
| sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES block 4k+4 - load plaintext |
| |
| eor $input_l0, $input_l0, $rk12_l @ AES block 4k+4 - round 12 low |
| eor $input_h0, $input_h0, $rk12_h @ AES block 4k+4 - round 12 high |
| |
| fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low |
| |
| fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high |
| cmp $main_end_input_ptr, #48 |
| |
| eor $res1b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result |
| |
| ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag |
| b.gt .L192_enc_blocks_more_than_3 |
| |
| sub $rctr32w, $rctr32w, #1 |
| movi $acc_m.8b, #0 |
| |
| mov $ctr3b, $ctr2b |
| movi $acc_h.8b, #0 |
| cmp $main_end_input_ptr, #32 |
| |
| mov $ctr2b, $ctr1b |
| movi $acc_l.8b, #0 |
| b.gt .L192_enc_blocks_more_than_2 |
| |
| sub $rctr32w, $rctr32w, #1 |
| |
| mov $ctr3b, $ctr1b |
| cmp $main_end_input_ptr, #16 |
| b.gt .L192_enc_blocks_more_than_1 |
| |
| sub $rctr32w, $rctr32w, #1 |
| b .L192_enc_blocks_less_than_1 |
| .L192_enc_blocks_more_than_3: @ blocks left > 3 |
| st1 { $res1b}, [$output_ptr], #16 @ AES final-3 block - store result |
| |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-2 block - load input low & high |
| |
| rev64 $res0b, $res1b @ GHASH final-3 block |
| |
| eor $input_l0, $input_l0, $rk12_l @ AES final-2 block - round 12 low |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| eor $input_h0, $input_h0, $rk12_h @ AES final-2 block - round 12 high |
| fmov $res1d, $input_l0 @ AES final-2 block - mov low |
| |
| fmov $res1.d[1], $input_h0 @ AES final-2 block - mov high |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low |
| |
| mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid |
| |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high |
| |
| pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid |
| eor $res1b, $res1b, $ctr1b @ AES final-2 block - result |
| .L192_enc_blocks_more_than_2: @ blocks left > 2 |
| |
| st1 { $res1b}, [$output_ptr], #16 @ AES final-2 block - store result |
| |
| rev64 $res0b, $res1b @ GHASH final-2 block |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-1 block - load input low & high |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| eor $input_h0, $input_h0, $rk12_h @ AES final-1 block - round 12 high |
| |
| pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high |
| mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid |
| |
| pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low |
| eor $input_l0, $input_l0, $rk12_l @ AES final-1 block - round 12 low |
| |
| fmov $res1d, $input_l0 @ AES final-1 block - mov low |
| |
| fmov $res1.d[1], $input_h0 @ AES final-1 block - mov high |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low |
| |
| pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid |
| |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| eor $res1b, $res1b, $ctr2b @ AES final-1 block - result |
| |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid |
| .L192_enc_blocks_more_than_1: @ blocks left > 1 |
| |
| st1 { $res1b}, [$output_ptr], #16 @ AES final-1 block - store result |
| |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final block - load input low & high |
| |
| rev64 $res0b, $res1b @ GHASH final-1 block |
| |
| eor $input_l0, $input_l0, $rk12_l @ AES final block - round 12 low |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid |
| eor $input_h0, $input_h0, $rk12_h @ AES final block - round 12 high |
| fmov $res1d, $input_l0 @ AES final block - mov low |
| |
| pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high |
| fmov $res1.d[1], $input_h0 @ AES final block - mov high |
| |
| ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high |
| |
| pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low |
| |
| pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid |
| |
| eor $res1b, $res1b, $ctr3b @ AES final block - result |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low |
| |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid |
| .L192_enc_blocks_less_than_1: @ blocks left <= 1 |
| |
| ld1 { $rk0}, [$output_ptr] @ load existing bytes where the possibly partial last block is to be stored |
| rev $ctr32w, $rctr32w |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| |
| sub $bit_length, $bit_length, #128 @ bit_length -= 128 |
| mvn $rk12_h, xzr @ rk12_h = 0xffffffffffffffff |
| |
| neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) |
| mvn $rk12_l, xzr @ rk12_l = 0xffffffffffffffff |
| |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| |
| lsr $rk12_h, $rk12_h, $bit_length @ rk12_h is mask for top 64b of last block |
| cmp $bit_length, #64 |
| |
| csel $input_l0, $rk12_l, $rk12_h, lt |
| csel $input_h0, $rk12_h, xzr, lt |
| |
| fmov $ctr0d, $input_l0 @ ctr0b is mask for last block |
| |
| fmov $ctr0.d[1], $input_h0 |
| |
| and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits |
| |
| rev64 $res0b, $res1b @ GHASH final block |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| mov $t0d, $res0.d[1] @ GHASH final block - mid |
| |
| pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low |
| |
| pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high |
| |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high |
| |
| pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid |
| |
| eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid |
| movi $mod_constant.8b, #0xc2 |
| |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| bif $res1b, $rk0, $ctr0b @ insert existing bytes in top end of result before storing |
| |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low |
| str $ctr32w, [$counter, #12] @ store the updated counter |
| |
| st1 { $res1b}, [$output_ptr] @ store all 16B |
| |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| mov x0, $len |
| st1 { $acc_l.16b }, [$current_tag] |
| |
| ldp x21, x22, [sp, #16] |
| ldp x23, x24, [sp, #32] |
| ldp d8, d9, [sp, #48] |
| ldp d10, d11, [sp, #64] |
| ldp d12, d13, [sp, #80] |
| ldp d14, d15, [sp, #96] |
| ldp x19, x20, [sp], #112 |
| ret |
| |
| .L192_enc_ret: |
| mov w0, #0x0 |
| ret |
| .size aes_gcm_enc_192_kernel,.-aes_gcm_enc_192_kernel |
| ___ |
| |
| ######################################################################################### |
| # size_t aes_gcm_dec_192_kernel(const unsigned char *in, |
| # size_t len, |
| # unsigned char *out, |
| # const void *key, |
| # unsigned char ivec[16], |
| # u64 *Xi); |
| # |
| $code.=<<___; |
| .global aes_gcm_dec_192_kernel |
| .type aes_gcm_dec_192_kernel,%function |
| .align 4 |
| aes_gcm_dec_192_kernel: |
| AARCH64_VALID_CALL_TARGET |
| cbz x1, .L192_dec_ret |
| stp x19, x20, [sp, #-112]! |
| mov x16, x4 |
| mov x8, x5 |
| stp x21, x22, [sp, #16] |
| stp x23, x24, [sp, #32] |
| stp d8, d9, [sp, #48] |
| stp d10, d11, [sp, #64] |
| stp d12, d13, [sp, #80] |
| stp d14, d15, [sp, #96] |
| |
| add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr |
| ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 |
| |
| ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible |
| |
| ldr $rk0q, [$cc, #0] @ load rk0 |
| |
| lsr $main_end_input_ptr, $bit_length, #3 @ byte_len |
| mov $len, $main_end_input_ptr |
| ldr $rk2q, [$cc, #32] @ load rk2 |
| |
| lsr $rctr32x, $ctr96_t32x, #32 |
| orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w |
| fmov $ctr3d, $ctr96_b64x @ CTR block 3 |
| |
| rev $rctr32w, $rctr32w @ rev_ctr32 |
| fmov $ctr1d, $ctr96_b64x @ CTR block 1 |
| |
| add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 |
| ldr $rk1q, [$cc, #16] @ load rk1 |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 |
| rev $ctr32w, $rctr32w @ CTR block 1 |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 1 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 |
| ldr $rk3q, [$cc, #48] @ load rk3 |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 1 |
| rev $ctr32w, $rctr32w @ CTR block 2 |
| add $rctr32w, $rctr32w, #1 @ CTR block 2 |
| |
| fmov $ctr2d, $ctr96_b64x @ CTR block 2 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 2 |
| rev $ctr32w, $rctr32w @ CTR block 3 |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 |
| |
| fmov $ctr3.d[1], $ctr32x @ CTR block 3 |
| |
| ldr $rk8q, [$cc, #128] @ load rk8 |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 |
| ldr $rk11q, [$cc, #176] @ load rk11 |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 |
| ldr $h4q, [$current_tag, #112] @ load h4l | h4h |
| ext $h4b, $h4b, $h4b, #8 |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 |
| ldr $h2q, [$current_tag, #64] @ load h2l | h2h |
| ext $h2b, $h2b, $h2b, #8 |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 |
| ldr $h3q, [$current_tag, #80] @ load h3l | h3h |
| ext $h3b, $h3b, $h3b, #8 |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 |
| ldp $rk12_l, $rk12_h, [$cc, #192] @ load rk12 |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 |
| ldr $h1q, [$current_tag, #32] @ load h1l | h1h |
| ext $h1b, $h1b, $h1b, #8 |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 |
| ldr $rk10q, [$cc, #160] @ load rk10 |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 |
| ldr $rk9q, [$cc, #144] @ load rk9 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 |
| ldr $rk7q, [$cc, #112] @ load rk7 |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 |
| ldr $rk4q, [$cc, #64] @ load rk4 |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 |
| ld1 { $acc_lb}, [$current_tag] |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 |
| add $rctr32w, $rctr32w, #1 @ CTR block 3 |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 |
| trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 |
| ldr $rk5q, [$cc, #80] @ load rk5 |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 |
| trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 |
| trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 |
| ldr $rk6q, [$cc, #96] @ load rk6 |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 9 |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 9 |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 |
| sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 |
| and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 10 |
| add $main_end_input_ptr, $main_end_input_ptr, $input_ptr |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 9 |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 9 |
| trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h |
| |
| aese $ctr3b, $rk11 @ AES block 3 - round 11 |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 10 |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 10 |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 10 |
| eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k |
| |
| aese $ctr2b, $rk11 @ AES block 2 - round 11 |
| |
| aese $ctr1b, $rk11 @ AES block 1 - round 11 |
| eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k |
| |
| aese $ctr0b, $rk11 @ AES block 0 - round 11 |
| b.ge .L192_dec_tail @ handle tail |
| |
| ldr $res1q, [$input_ptr, #16] @ AES block 1 - load ciphertext |
| |
| ldr $res0q, [$input_ptr, #0] @ AES block 0 - load ciphertext |
| |
| eor $ctr1b, $res1b, $ctr1b @ AES block 1 - result |
| |
| eor $ctr0b, $res0b, $ctr0b @ AES block 0 - result |
| rev $ctr32w, $rctr32w @ CTR block 4 |
| ldr $res3q, [$input_ptr, #48] @ AES block 3 - load ciphertext |
| |
| ldr $res2q, [$input_ptr, #32] @ AES block 2 - load ciphertext |
| |
| mov $output_l1, $ctr1.d[0] @ AES block 1 - mov low |
| |
| mov $output_h1, $ctr1.d[1] @ AES block 1 - mov high |
| |
| mov $output_l0, $ctr0.d[0] @ AES block 0 - mov low |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4 |
| |
| mov $output_h0, $ctr0.d[1] @ AES block 0 - mov high |
| rev64 $res0b, $res0b @ GHASH block 0 |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4 |
| rev64 $res1b, $res1b @ GHASH block 1 |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks |
| |
| eor $output_l1, $output_l1, $rk12_l @ AES block 1 - round 12 low |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4 |
| rev $ctr32w, $rctr32w @ CTR block 5 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 |
| fmov $ctr1d, $ctr96_b64x @ CTR block 5 |
| eor $output_h1, $output_h1, $rk12_h @ AES block 1 - round 12 high |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 5 |
| fmov $ctr1.d[1], $ctr32x @ CTR block 5 |
| eor $output_l0, $output_l0, $rk12_l @ AES block 0 - round 12 low |
| |
| rev $ctr32w, $rctr32w @ CTR block 6 |
| eor $output_h0, $output_h0, $rk12_h @ AES block 0 - round 12 high |
| |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 0 - store result |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 |
| |
| stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 1 - store result |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 6 |
| eor $ctr2b, $res2b, $ctr2b @ AES block 2 - result |
| b.ge .L192_dec_prepretail @ do prepretail |
| |
| .L192_dec_main_loop: @ main loop start |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low |
| |
| mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high |
| eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result |
| rev64 $res3b, $res3b @ GHASH block 4k+3 |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| rev $ctr32w, $rctr32w @ CTR block 4k+7 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 |
| |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| eor $output_h2, $output_h2, $rk12_h @ AES block 4k+2 - round 12 high |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| rev64 $res2b, $res2b @ GHASH block 4k+2 |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| eor $output_l2, $output_l2, $rk12_l @ AES block 4k+2 - round 12 low |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| movi $mod_constant.8b, #0xc2 |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| ldr $res2q, [$input_ptr, #32] @ AES block 4k+6 - load ciphertext |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| ldr $res3q, [$input_ptr, #48] @ AES block 4k+7 - load ciphertext |
| eor $output_l3, $output_l3, $rk12_l @ AES block 4k+3 - round 12 low |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| aese $ctr0b, $rk11 @ AES block 4k+4 - round 11 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| ldr $res0q, [$input_ptr, #0] @ AES block 4k+4 - load ciphertext |
| |
| aese $ctr1b, $rk11 @ AES block 4k+5 - round 11 |
| ldr $res1q, [$input_ptr, #16] @ AES block 4k+5 - load ciphertext |
| rev $ctr32w, $rctr32w @ CTR block 4k+8 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL |
| |
| eor $ctr0b, $res0b, $ctr0b @ AES block 4k+4 - result |
| eor $output_h3, $output_h3, $rk12_h @ AES block 4k+3 - round 12 high |
| eor $ctr1b, $res1b, $ctr1b @ AES block 4k+5 - result |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 |
| |
| pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| mov $output_l1, $ctr1.d[0] @ AES block 4k+5 - mov low |
| |
| mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low |
| stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result |
| rev64 $res1b, $res1b @ GHASH block 4k+5 |
| |
| aese $ctr2b, $rk11 @ AES block 4k+6 - round 11 |
| mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 |
| mov $output_h1, $ctr1.d[1] @ AES block 4k+5 - mov high |
| |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| eor $ctr2b, $res2b, $ctr2b @ AES block 4k+6 - result |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 |
| rev $ctr32w, $rctr32w @ CTR block 4k+9 |
| |
| eor $output_l0, $output_l0, $rk12_l @ AES block 4k+4 - round 12 low |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 |
| eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low |
| |
| fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 |
| eor $output_l1, $output_l1, $rk12_l @ AES block 4k+5 - round 12 low |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 |
| rev $ctr32w, $rctr32w @ CTR block 4k+10 |
| eor $output_h1, $output_h1, $rk12_h @ AES block 4k+5 - round 12 high |
| |
| eor $output_h0, $output_h0, $rk12_h @ AES block 4k+4 - round 12 high |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 4k+4 - store result |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 |
| rev64 $res0b, $res0b @ GHASH block 4k+4 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 |
| |
| aese $ctr3b, $rk11 @ AES block 4k+7 - round 11 |
| stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 4k+5 - store result |
| b.lt .L192_dec_main_loop |
| |
| .L192_dec_prepretail: @ PREPRETAIL |
| mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| rev64 $res2b, $res2b @ GHASH block 4k+2 |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 |
| rev $ctr32w, $rctr32w @ CTR block 4k+7 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| eor $output_h3, $output_h3, $rk12_h @ AES block 4k+3 - round 12 high |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| eor $output_l2, $output_l2, $rk12_l @ AES block 4k+2 - round 12 low |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| eor $output_h2, $output_h2, $rk12_h @ AES block 4k+2 - round 12 high |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| eor $output_l3, $output_l3, $rk12_l @ AES block 4k+3 - round 12 low |
| stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result |
| |
| rev64 $res3b, $res3b @ GHASH block 4k+3 |
| stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| movi $mod_constant.8b, #0xc2 |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 |
| |
| pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 |
| |
| aese $ctr0b, $rk11 |
| eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low |
| |
| aese $ctr2b, $rk11 |
| |
| aese $ctr1b, $rk11 |
| |
| aese $ctr3b, $rk11 |
| |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| .L192_dec_tail: @ TAIL |
| |
| sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process |
| ld1 { $res1b}, [$input_ptr], #16 @ AES block 4k+4 - load ciphertext |
| |
| eor $ctr0b, $res1b, $ctr0b @ AES block 4k+4 - result |
| |
| mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high |
| |
| mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low |
| |
| ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag |
| |
| cmp $main_end_input_ptr, #48 |
| |
| eor $output_h0, $output_h0, $rk12_h @ AES block 4k+4 - round 12 high |
| |
| eor $output_l0, $output_l0, $rk12_l @ AES block 4k+4 - round 12 low |
| b.gt .L192_dec_blocks_more_than_3 |
| |
| movi $acc_l.8b, #0 |
| movi $acc_h.8b, #0 |
| |
| mov $ctr3b, $ctr2b |
| mov $ctr2b, $ctr1b |
| sub $rctr32w, $rctr32w, #1 |
| |
| movi $acc_m.8b, #0 |
| cmp $main_end_input_ptr, #32 |
| b.gt .L192_dec_blocks_more_than_2 |
| |
| mov $ctr3b, $ctr1b |
| cmp $main_end_input_ptr, #16 |
| sub $rctr32w, $rctr32w, #1 |
| |
| b.gt .L192_dec_blocks_more_than_1 |
| |
| sub $rctr32w, $rctr32w, #1 |
| b .L192_dec_blocks_less_than_1 |
| .L192_dec_blocks_more_than_3: @ blocks left > 3 |
| rev64 $res0b, $res1b @ GHASH final-3 block |
| ld1 { $res1b}, [$input_ptr], #16 @ AES final-2 block - load ciphertext |
| |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-3 block - store result |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| eor $ctr0b, $res1b, $ctr1b @ AES final-2 block - result |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low |
| mov $output_l0, $ctr0.d[0] @ AES final-2 block - mov low |
| mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid |
| |
| mov $output_h0, $ctr0.d[1] @ AES final-2 block - mov high |
| |
| mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high |
| |
| eor $output_l0, $output_l0, $rk12_l @ AES final-2 block - round 12 low |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid |
| eor $output_h0, $output_h0, $rk12_h @ AES final-2 block - round 12 high |
| .L192_dec_blocks_more_than_2: @ blocks left > 2 |
| |
| rev64 $res0b, $res1b @ GHASH final-2 block |
| ld1 { $res1b}, [$input_ptr], #16 @ AES final-1 block - load ciphertext |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| eor $ctr0b, $res1b, $ctr2b @ AES final-1 block - result |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid |
| |
| pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low |
| |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-2 block - store result |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid |
| mov $output_h0, $ctr0.d[1] @ AES final-1 block - mov high |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low |
| mov $output_l0, $ctr0.d[0] @ AES final-1 block - mov low |
| |
| pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high |
| |
| pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high |
| eor $output_h0, $output_h0, $rk12_h @ AES final-1 block - round 12 high |
| |
| eor $output_l0, $output_l0, $rk12_l @ AES final-1 block - round 12 low |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid |
| .L192_dec_blocks_more_than_1: @ blocks left > 1 |
| |
| rev64 $res0b, $res1b @ GHASH final-1 block |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| ld1 { $res1b}, [$input_ptr], #16 @ AES final block - load ciphertext |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid |
| |
| pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high |
| |
| eor $ctr0b, $res1b, $ctr3b @ AES final block - result |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-1 block - store result |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high |
| |
| pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low |
| mov $output_h0, $ctr0.d[1] @ AES final block - mov high |
| |
| ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid |
| mov $output_l0, $ctr0.d[0] @ AES final block - mov low |
| |
| pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid |
| |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low |
| eor $output_h0, $output_h0, $rk12_h @ AES final block - round 12 high |
| |
| eor $output_l0, $output_l0, $rk12_l @ AES final block - round 12 low |
| |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid |
| .L192_dec_blocks_less_than_1: @ blocks left <= 1 |
| |
| mvn $rk12_l, xzr @ rk12_l = 0xffffffffffffffff |
| ldp $end_input_ptr, $main_end_input_ptr, [$output_ptr] @ load existing bytes we need to not overwrite |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| |
| sub $bit_length, $bit_length, #128 @ bit_length -= 128 |
| |
| neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) |
| |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| mvn $rk12_h, xzr @ rk12_h = 0xffffffffffffffff |
| |
| lsr $rk12_h, $rk12_h, $bit_length @ rk12_h is mask for top 64b of last block |
| cmp $bit_length, #64 |
| |
| csel $ctr32x, $rk12_l, $rk12_h, lt |
| csel $ctr96_b64x, $rk12_h, xzr, lt |
| |
| fmov $ctr0d, $ctr32x @ ctr0b is mask for last block |
| and $output_l0, $output_l0, $ctr32x |
| bic $end_input_ptr, $end_input_ptr, $ctr32x @ mask out low existing bytes |
| |
| orr $output_l0, $output_l0, $end_input_ptr |
| mov $ctr0.d[1], $ctr96_b64x |
| |
| rev $ctr32w, $rctr32w |
| |
| and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits |
| str $ctr32w, [$counter, #12] @ store the updated counter |
| |
| rev64 $res0b, $res1b @ GHASH final block |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| bic $main_end_input_ptr, $main_end_input_ptr, $ctr96_b64x @ mask out high existing bytes |
| |
| and $output_h0, $output_h0, $ctr96_b64x |
| |
| pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high |
| mov $t0d, $res0.d[1] @ GHASH final block - mid |
| |
| pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low |
| |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high |
| |
| pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low |
| |
| eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid |
| movi $mod_constant.8b, #0xc2 |
| |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| orr $output_h0, $output_h0, $main_end_input_ptr |
| stp $output_l0, $output_h0, [$output_ptr] |
| |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| |
| eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low |
| |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| mov x0, $len |
| st1 { $acc_l.16b }, [$current_tag] |
| |
| ldp x21, x22, [sp, #16] |
| ldp x23, x24, [sp, #32] |
| ldp d8, d9, [sp, #48] |
| ldp d10, d11, [sp, #64] |
| ldp d12, d13, [sp, #80] |
| ldp d14, d15, [sp, #96] |
| ldp x19, x20, [sp], #112 |
| ret |
| |
| .L192_dec_ret: |
| mov w0, #0x0 |
| ret |
| .size aes_gcm_dec_192_kernel,.-aes_gcm_dec_192_kernel |
| ___ |
| } |
| |
| { |
| my ($end_input_ptr,$main_end_input_ptr,$input_l0,$input_h0)=map("x$_",(4..7)); |
| my ($input_l1,$input_h1,$input_l2,$input_h2,$input_l3,$input_h3)=map("x$_",(19..24)); |
| my ($output_l1,$output_h1,$output_l2,$output_h2,$output_l3,$output_h3)=map("x$_",(19..24)); |
| my ($output_l0,$output_h0)=map("x$_",(6..7)); |
| |
| my $ctr32w="w9"; |
| my ($ctr32x,$ctr96_b64x,$ctr96_t32x,$rctr32x,$rk14_l,$rk14_h,$len)=map("x$_",(9..15)); |
| my ($ctr96_t32w,$rctr32w)=map("w$_",(11..12)); |
| |
| my ($ctr0b,$ctr1b,$ctr2b,$ctr3b,$res0b,$res1b,$res2b,$res3b)=map("v$_.16b",(0..7)); |
| my ($ctr0,$ctr1,$ctr2,$ctr3,$res0,$res1,$res2,$res3)=map("v$_",(0..7)); |
| my ($ctr0d,$ctr1d,$ctr2d,$ctr3d,$res0d,$res1d,$res2d,$res3d)=map("d$_",(0..7)); |
| my ($res0q,$res1q,$res2q,$res3q)=map("q$_",(4..7)); |
| |
| my ($acc_hb,$acc_mb,$acc_lb)=map("v$_.16b",(9..11)); |
| my ($acc_h,$acc_m,$acc_l)=map("v$_",(9..11)); |
| my ($acc_hd,$acc_md,$acc_ld)=map("d$_",(9..11)); |
| |
| my ($h1,$h2,$h3,$h4,$h12k,$h34k)=map("v$_",(12..17)); |
| my ($h1q,$h2q,$h3q,$h4q)=map("q$_",(12..15)); |
| my ($h1b,$h2b,$h3b,$h4b)=map("v$_.16b",(12..15)); |
| |
| my $t0="v8"; |
| my $t0d="d8"; |
| my $t1="v4"; |
| my $t1d="d4"; |
| my $t2="v8"; |
| my $t2d="d8"; |
| my $t3="v4"; |
| my $t3d="d4"; |
| my $t4="v4"; |
| my $t4d="d4"; |
| my $t5="v5"; |
| my $t5d="d5"; |
| my $t6="v8"; |
| my $t6d="d8"; |
| my $t7="v5"; |
| my $t7d="d5"; |
| my $t8="v6"; |
| my $t8d="d6"; |
| my $t9="v4"; |
| my $t9d="d4"; |
| |
| my ($ctr_t0,$ctr_t1,$ctr_t2,$ctr_t3)=map("v$_",(4..7)); |
| my ($ctr_t0d,$ctr_t1d,$ctr_t2d,$ctr_t3d)=map("d$_",(4..7)); |
| my ($ctr_t0b,$ctr_t1b,$ctr_t2b,$ctr_t3b)=map("v$_.16b",(4..7)); |
| |
| my $mod_constantd="d8"; |
| my $mod_constant="v8"; |
| my $mod_t="v7"; |
| |
| my ($rk0,$rk1,$rk2,$rk3,$rk4,$rk5,$rk6,$rk7,$rk8,$rk9,$rk10,$rk11,$rk12,$rk13)=map("v$_.16b",(18..31)); |
| my ($rk0q,$rk1q,$rk2q,$rk3q,$rk4q,$rk5q,$rk6q,$rk7q,$rk8q,$rk9q,$rk10q,$rk11q,$rk12q,$rk13q)=map("q$_",(18..31)); |
| my $rk2q1="v20.1q"; |
| my $rk3q1="v21.1q"; |
| my $rk4v="v22"; |
| my $rk4d="d22"; |
| |
| ######################################################################################### |
| # size_t aes_gcm_enc_256_kernel(const unsigned char *in, |
| # size_t len, |
| # unsigned char *out, |
| # const void *key, |
| # unsigned char ivec[16], |
| # u64 *Xi); |
| # |
| $code.=<<___; |
| .global aes_gcm_enc_256_kernel |
| .type aes_gcm_enc_256_kernel,%function |
| .align 4 |
| aes_gcm_enc_256_kernel: |
| AARCH64_VALID_CALL_TARGET |
| cbz x1, .L256_enc_ret |
| stp x19, x20, [sp, #-112]! |
| mov x16, x4 |
| mov x8, x5 |
| stp x21, x22, [sp, #16] |
| stp x23, x24, [sp, #32] |
| stp d8, d9, [sp, #48] |
| stp d10, d11, [sp, #64] |
| stp d12, d13, [sp, #80] |
| stp d14, d15, [sp, #96] |
| |
| add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr |
| lsr $main_end_input_ptr, $bit_length, #3 @ byte_len |
| mov $len, $main_end_input_ptr |
| ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 |
| |
| ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible |
| sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 |
| |
| ldr $rk0q, [$cc, #0] @ load rk0 |
| and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) |
| |
| ldr $rk7q, [$cc, #112] @ load rk7 |
| add $main_end_input_ptr, $main_end_input_ptr, $input_ptr |
| |
| lsr $rctr32x, $ctr96_t32x, #32 |
| fmov $ctr2d, $ctr96_b64x @ CTR block 2 |
| orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w |
| |
| rev $rctr32w, $rctr32w @ rev_ctr32 |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks |
| fmov $ctr1d, $ctr96_b64x @ CTR block 1 |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 |
| add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 |
| |
| rev $ctr32w, $rctr32w @ CTR block 1 |
| fmov $ctr3d, $ctr96_b64x @ CTR block 3 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 |
| add $rctr32w, $rctr32w, #1 @ CTR block 1 |
| ldr $rk1q, [$cc, #16] @ load rk1 |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 1 |
| rev $ctr32w, $rctr32w @ CTR block 2 |
| add $rctr32w, $rctr32w, #1 @ CTR block 2 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 |
| ldr $rk2q, [$cc, #32] @ load rk2 |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 2 |
| rev $ctr32w, $rctr32w @ CTR block 3 |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 |
| |
| fmov $ctr3.d[1], $ctr32x @ CTR block 3 |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 |
| ldr $rk3q, [$cc, #48] @ load rk3 |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 |
| ldr $rk6q, [$cc, #96] @ load rk6 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 |
| ldr $rk5q, [$cc, #80] @ load rk5 |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 |
| ldr $h3q, [$current_tag, #80] @ load h3l | h3h |
| ext $h3b, $h3b, $h3b, #8 |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 |
| ldr $rk13q, [$cc, #208] @ load rk13 |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 |
| ldr $rk4q, [$cc, #64] @ load rk4 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 |
| ldr $h2q, [$current_tag, #64] @ load h2l | h2h |
| ext $h2b, $h2b, $h2b, #8 |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 |
| ldr $rk12q, [$cc, #192] @ load rk12 |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 |
| ldr $h4q, [$current_tag, #112] @ load h4l | h4h |
| ext $h4b, $h4b, $h4b, #8 |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 |
| ldr $rk11q, [$cc, #176] @ load rk11 |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 |
| ldr $rk8q, [$cc, #128] @ load rk8 |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 |
| add $rctr32w, $rctr32w, #1 @ CTR block 3 |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 |
| ldp $rk14_l, $rk14_h, [$cc, #224] @ load rk14 |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 |
| ld1 { $acc_lb}, [$current_tag] |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 |
| trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 |
| ldr $rk9q, [$cc, #144] @ load rk9 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 |
| ldr $h1q, [$current_tag, #32] @ load h1l | h1h |
| ext $h1b, $h1b, $h1b, #8 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 |
| ldr $rk10q, [$cc, #160] @ load rk10 |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 |
| trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 |
| trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 9 |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 9 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 10 |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 9 |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 9 |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 10 |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 10 |
| |
| aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 11 |
| |
| aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 11 |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 10 |
| |
| aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 12 |
| |
| aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 12 |
| |
| aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 11 |
| eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k |
| |
| aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 11 |
| |
| aese $ctr2b, $rk13 @ AES block 2 - round 13 |
| trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h |
| |
| aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 12 |
| |
| aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 12 |
| |
| aese $ctr1b, $rk13 @ AES block 1 - round 13 |
| |
| aese $ctr0b, $rk13 @ AES block 0 - round 13 |
| |
| aese $ctr3b, $rk13 @ AES block 3 - round 13 |
| eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k |
| b.ge .L256_enc_tail @ handle tail |
| |
| ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 1 - load plaintext |
| |
| rev $ctr32w, $rctr32w @ CTR block 4 |
| ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 0 - load plaintext |
| |
| ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 3 - load plaintext |
| |
| ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 2 - load plaintext |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| |
| eor $input_l1, $input_l1, $rk14_l @ AES block 1 - round 14 low |
| eor $input_h1, $input_h1, $rk14_h @ AES block 1 - round 14 high |
| |
| fmov $ctr_t1d, $input_l1 @ AES block 1 - mov low |
| eor $input_l0, $input_l0, $rk14_l @ AES block 0 - round 14 low |
| |
| eor $input_h0, $input_h0, $rk14_h @ AES block 0 - round 14 high |
| eor $input_h3, $input_h3, $rk14_h @ AES block 3 - round 14 high |
| fmov $ctr_t0d, $input_l0 @ AES block 0 - mov low |
| |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks |
| fmov $ctr_t0.d[1], $input_h0 @ AES block 0 - mov high |
| eor $input_l3, $input_l3, $rk14_l @ AES block 3 - round 14 low |
| |
| eor $input_l2, $input_l2, $rk14_l @ AES block 2 - round 14 low |
| fmov $ctr_t1.d[1], $input_h1 @ AES block 1 - mov high |
| |
| fmov $ctr_t2d, $input_l2 @ AES block 2 - mov low |
| add $rctr32w, $rctr32w, #1 @ CTR block 4 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 |
| fmov $ctr_t3d, $input_l3 @ AES block 3 - mov low |
| eor $input_h2, $input_h2, $rk14_h @ AES block 2 - round 14 high |
| |
| fmov $ctr_t2.d[1], $input_h2 @ AES block 2 - mov high |
| |
| eor $res0b, $ctr_t0b, $ctr0b @ AES block 0 - result |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4 |
| |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4 |
| rev $ctr32w, $rctr32w @ CTR block 5 |
| add $rctr32w, $rctr32w, #1 @ CTR block 5 |
| |
| eor $res1b, $ctr_t1b, $ctr1b @ AES block 1 - result |
| fmov $ctr1d, $ctr96_b64x @ CTR block 5 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 5 |
| rev $ctr32w, $rctr32w @ CTR block 6 |
| st1 { $res0b}, [$output_ptr], #16 @ AES block 0 - store result |
| |
| fmov $ctr_t3.d[1], $input_h3 @ AES block 3 - mov high |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 |
| eor $res2b, $ctr_t2b, $ctr2b @ AES block 2 - result |
| |
| st1 { $res1b}, [$output_ptr], #16 @ AES block 1 - store result |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 6 |
| fmov $ctr2d, $ctr96_b64x @ CTR block 6 |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 6 |
| st1 { $res2b}, [$output_ptr], #16 @ AES block 2 - store result |
| rev $ctr32w, $rctr32w @ CTR block 7 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 7 |
| |
| eor $res3b, $ctr_t3b, $ctr3b @ AES block 3 - result |
| st1 { $res3b}, [$output_ptr], #16 @ AES block 3 - store result |
| b.ge L256_enc_prepretail @ do prepretail |
| |
| .L256_enc_main_loop: @ main loop start |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 4k+7 - load plaintext |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 4k+6 - load plaintext |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| eor $input_l3, $input_l3, $rk14_l @ AES block 4k+7 - round 14 low |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| eor $input_h2, $input_h2, $rk14_h @ AES block 4k+6 - round 14 high |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 4k+5 - load plaintext |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| eor $input_l1, $input_l1, $rk14_l @ AES block 4k+5 - round 14 low |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| eor $input_l2, $input_l2, $rk14_l @ AES block 4k+6 - round 14 low |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 |
| movi $mod_constant.8b, #0xc2 |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| fmov $ctr_t1d, $input_l1 @ AES block 4k+5 - mov low |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 4k+4 - load plaintext |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 |
| |
| aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 11 |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 11 |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| rev $ctr32w, $rctr32w @ CTR block 4k+8 |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 |
| eor $input_l0, $input_l0, $rk14_l @ AES block 4k+4 - round 14 low |
| |
| aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 12 |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 |
| eor $input_h0, $input_h0, $rk14_h @ AES block 4k+4 - round 14 high |
| |
| fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 |
| eor $mod_t.16b, $acc_hb, $mod_t.16b @ MODULO - fold into mid |
| |
| aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 12 |
| eor $input_h1, $input_h1, $rk14_h @ AES block 4k+5 - round 14 high |
| |
| aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 11 |
| eor $input_h3, $input_h3, $rk14_h @ AES block 4k+7 - round 14 high |
| |
| aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 11 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 |
| |
| aese $ctr0b, $rk13 @ AES block 4k+4 - round 13 |
| fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 12 |
| fmov $ctr_t3d, $input_l3 @ AES block 4k+7 - mov low |
| |
| aese $ctr1b, $rk13 @ AES block 4k+5 - round 13 |
| fmov $ctr_t1.d[1], $input_h1 @ AES block 4k+5 - mov high |
| |
| fmov $ctr_t2d, $input_l2 @ AES block 4k+6 - mov low |
| cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL |
| |
| fmov $ctr_t2.d[1], $input_h2 @ AES block 4k+6 - mov high |
| |
| pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| eor $res0b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 |
| |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 |
| rev $ctr32w, $rctr32w @ CTR block 4k+9 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 |
| |
| eor $res1b, $ctr_t1b, $ctr1b @ AES block 4k+5 - result |
| fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 |
| |
| aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 12 |
| fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 |
| |
| aese $ctr2b, $rk13 @ AES block 4k+6 - round 13 |
| rev $ctr32w, $rctr32w @ CTR block 4k+10 |
| st1 { $res0b}, [$output_ptr], #16 @ AES block 4k+4 - store result |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 |
| eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low |
| fmov $ctr_t3.d[1], $input_h3 @ AES block 4k+7 - mov high |
| |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| st1 { $res1b}, [$output_ptr], #16 @ AES block 4k+5 - store result |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 |
| |
| aese $ctr3b, $rk13 @ AES block 4k+7 - round 13 |
| eor $res2b, $ctr_t2b, $ctr2b @ AES block 4k+6 - result |
| fmov $ctr2d, $ctr96_b64x @ CTR block 4k+10 |
| |
| st1 { $res2b}, [$output_ptr], #16 @ AES block 4k+6 - store result |
| fmov $ctr2.d[1], $ctr32x @ CTR block 4k+10 |
| rev $ctr32w, $rctr32w @ CTR block 4k+11 |
| |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+11 |
| |
| eor $res3b, $ctr_t3b, $ctr3b @ AES block 4k+7 - result |
| st1 { $res3b}, [$output_ptr], #16 @ AES block 4k+7 - store result |
| b.lt L256_enc_main_loop |
| |
| .L256_enc_prepretail: @ PREPRETAIL |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) |
| |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| movi $mod_constant.8b, #0xc2 |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 |
| |
| eor $acc_mb, $acc_mb, $acc_hb @ karatsuba tidy up |
| |
| pmull $t1.1q, $acc_h.1d, $mod_constant.1d |
| ext $acc_hb, $acc_hb, $acc_hb, #8 |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| eor $acc_mb, $acc_mb, $acc_lb |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| |
| aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 11 |
| eor $acc_mb, $acc_mb, $t1.16b |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 |
| |
| aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 12 |
| |
| aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 11 |
| eor $acc_mb, $acc_mb, $acc_hb |
| |
| aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 11 |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 |
| |
| aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 12 |
| |
| pmull $t1.1q, $acc_m.1d, $mod_constant.1d |
| |
| aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 11 |
| ext $acc_mb, $acc_mb, $acc_mb, #8 |
| |
| aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 12 |
| |
| aese $ctr1b, $rk13 @ AES block 4k+5 - round 13 |
| eor $acc_lb, $acc_lb, $t1.16b |
| |
| aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 12 |
| |
| aese $ctr3b, $rk13 @ AES block 4k+7 - round 13 |
| |
| aese $ctr0b, $rk13 @ AES block 4k+4 - round 13 |
| |
| aese $ctr2b, $rk13 @ AES block 4k+6 - round 13 |
| eor $acc_lb, $acc_lb, $acc_mb |
| .L256_enc_tail: @ TAIL |
| |
| ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag |
| sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES block 4k+4 - load plaintext |
| |
| eor $input_l0, $input_l0, $rk14_l @ AES block 4k+4 - round 14 low |
| eor $input_h0, $input_h0, $rk14_h @ AES block 4k+4 - round 14 high |
| |
| cmp $main_end_input_ptr, #48 |
| fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low |
| |
| fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high |
| |
| eor $res1b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result |
| b.gt .L256_enc_blocks_more_than_3 |
| |
| cmp $main_end_input_ptr, #32 |
| mov $ctr3b, $ctr2b |
| movi $acc_l.8b, #0 |
| |
| movi $acc_h.8b, #0 |
| sub $rctr32w, $rctr32w, #1 |
| |
| mov $ctr2b, $ctr1b |
| movi $acc_m.8b, #0 |
| b.gt .L256_enc_blocks_more_than_2 |
| |
| mov $ctr3b, $ctr1b |
| sub $rctr32w, $rctr32w, #1 |
| cmp $main_end_input_ptr, #16 |
| |
| b.gt .L256_enc_blocks_more_than_1 |
| |
| sub $rctr32w, $rctr32w, #1 |
| b .L256_enc_blocks_less_than_1 |
| .L256_enc_blocks_more_than_3: @ blocks left > 3 |
| st1 { $res1b}, [$output_ptr], #16 @ AES final-3 block - store result |
| |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-2 block - load input low & high |
| |
| rev64 $res0b, $res1b @ GHASH final-3 block |
| |
| eor $input_l0, $input_l0, $rk14_l @ AES final-2 block - round 14 low |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| eor $input_h0, $input_h0, $rk14_h @ AES final-2 block - round 14 high |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid |
| fmov $res1d, $input_l0 @ AES final-2 block - mov low |
| |
| fmov $res1.d[1], $input_h0 @ AES final-2 block - mov high |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high |
| |
| pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid |
| eor $res1b, $res1b, $ctr1b @ AES final-2 block - result |
| .L256_enc_blocks_more_than_2: @ blocks left > 2 |
| |
| st1 { $res1b}, [$output_ptr], #16 @ AES final-2 block - store result |
| |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-1 block - load input low & high |
| |
| rev64 $res0b, $res1b @ GHASH final-2 block |
| |
| eor $input_l0, $input_l0, $rk14_l @ AES final-1 block - round 14 low |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| fmov $res1d, $input_l0 @ AES final-1 block - mov low |
| eor $input_h0, $input_h0, $rk14_h @ AES final-1 block - round 14 high |
| |
| fmov $res1.d[1], $input_h0 @ AES final-1 block - mov high |
| |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high |
| mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid |
| |
| pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid |
| |
| eor $res1b, $res1b, $ctr2b @ AES final-1 block - result |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high |
| |
| pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low |
| |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid |
| .L256_enc_blocks_more_than_1: @ blocks left > 1 |
| |
| st1 { $res1b}, [$output_ptr], #16 @ AES final-1 block - store result |
| |
| rev64 $res0b, $res1b @ GHASH final-1 block |
| |
| ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final block - load input low & high |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| eor $input_l0, $input_l0, $rk14_l @ AES final block - round 14 low |
| mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid |
| |
| pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high |
| eor $input_h0, $input_h0, $rk14_h @ AES final block - round 14 high |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high |
| |
| ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid |
| fmov $res1d, $input_l0 @ AES final block - mov low |
| |
| fmov $res1.d[1], $input_h0 @ AES final block - mov high |
| |
| pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid |
| |
| pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low |
| |
| eor $res1b, $res1b, $ctr3b @ AES final block - result |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low |
| .L256_enc_blocks_less_than_1: @ blocks left <= 1 |
| |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| |
| mvn $rk14_l, xzr @ rk14_l = 0xffffffffffffffff |
| sub $bit_length, $bit_length, #128 @ bit_length -= 128 |
| |
| neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) |
| ld1 { $rk0}, [$output_ptr] @ load existing bytes where the possibly partial last block is to be stored |
| |
| mvn $rk14_h, xzr @ rk14_h = 0xffffffffffffffff |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| |
| lsr $rk14_h, $rk14_h, $bit_length @ rk14_h is mask for top 64b of last block |
| cmp $bit_length, #64 |
| |
| csel $input_l0, $rk14_l, $rk14_h, lt |
| csel $input_h0, $rk14_h, xzr, lt |
| |
| fmov $ctr0d, $input_l0 @ ctr0b is mask for last block |
| |
| fmov $ctr0.d[1], $input_h0 |
| |
| and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits |
| |
| rev64 $res0b, $res1b @ GHASH final block |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| bif $res1b, $rk0, $ctr0b @ insert existing bytes in top end of result before storing |
| |
| pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high |
| mov $t0d, $res0.d[1] @ GHASH final block - mid |
| rev $ctr32w, $rctr32w |
| |
| pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid |
| |
| pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low |
| |
| eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid |
| movi $mod_constant.8b, #0xc2 |
| |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| str $ctr32w, [$counter, #12] @ store the updated counter |
| |
| st1 { $res1b}, [$output_ptr] @ store all 16B |
| eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low |
| |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| mov x0, $len |
| st1 { $acc_l.16b }, [$current_tag] |
| |
| ldp x21, x22, [sp, #16] |
| ldp x23, x24, [sp, #32] |
| ldp d8, d9, [sp, #48] |
| ldp d10, d11, [sp, #64] |
| ldp d12, d13, [sp, #80] |
| ldp d14, d15, [sp, #96] |
| ldp x19, x20, [sp], #112 |
| ret |
| |
| .L256_enc_ret: |
| mov w0, #0x0 |
| ret |
| .size aes_gcm_enc_256_kernel,.-aes_gcm_enc_256_kernel |
| ___ |
| |
| { |
| my $t8="v4"; |
| my $t8d="d4"; |
| my $t9="v6"; |
| my $t9d="d6"; |
| ######################################################################################### |
| # size_t aes_gcm_dec_256_kernel(const unsigned char *in, |
| # size_t len, |
| # unsigned char *out, |
| # const void *key, |
| # unsigned char ivec[16], |
| # u64 *Xi); |
| # |
| $code.=<<___; |
| .global aes_gcm_dec_256_kernel |
| .type aes_gcm_dec_256_kernel,%function |
| .align 4 |
| aes_gcm_dec_256_kernel: |
| AARCH64_VALID_CALL_TARGET |
| cbz x1, .L256_dec_ret |
| stp x19, x20, [sp, #-112]! |
| mov x16, x4 |
| mov x8, x5 |
| stp x21, x22, [sp, #16] |
| stp x23, x24, [sp, #32] |
| stp d8, d9, [sp, #48] |
| stp d10, d11, [sp, #64] |
| stp d12, d13, [sp, #80] |
| stp d14, d15, [sp, #96] |
| |
| lsr $main_end_input_ptr, $bit_length, #3 @ byte_len |
| mov $len, $main_end_input_ptr |
| ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 |
| |
| ldr $rk8q, [$cc, #128] @ load rk8 |
| sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 |
| |
| ldr $rk7q, [$cc, #112] @ load rk7 |
| and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) |
| |
| add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr |
| ldr $rk6q, [$cc, #96] @ load rk6 |
| |
| lsr $rctr32x, $ctr96_t32x, #32 |
| ldr $rk5q, [$cc, #80] @ load rk5 |
| orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w |
| |
| ldr $rk3q, [$cc, #48] @ load rk3 |
| add $main_end_input_ptr, $main_end_input_ptr, $input_ptr |
| rev $rctr32w, $rctr32w @ rev_ctr32 |
| |
| add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 |
| fmov $ctr3d, $ctr96_b64x @ CTR block 3 |
| |
| rev $ctr32w, $rctr32w @ CTR block 1 |
| add $rctr32w, $rctr32w, #1 @ CTR block 1 |
| fmov $ctr1d, $ctr96_b64x @ CTR block 1 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 |
| ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 1 |
| rev $ctr32w, $rctr32w @ CTR block 2 |
| add $rctr32w, $rctr32w, #1 @ CTR block 2 |
| |
| fmov $ctr2d, $ctr96_b64x @ CTR block 2 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 2 |
| rev $ctr32w, $rctr32w @ CTR block 3 |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 |
| ldr $rk0q, [$cc, #0] @ load rk0 |
| |
| fmov $ctr3.d[1], $ctr32x @ CTR block 3 |
| add $rctr32w, $rctr32w, #1 @ CTR block 3 |
| |
| ldr $rk4q, [$cc, #64] @ load rk4 |
| |
| ldr $rk13q, [$cc, #208] @ load rk13 |
| |
| ldr $rk1q, [$cc, #16] @ load rk1 |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 |
| ldr $h3q, [$current_tag, #80] @ load h3l | h3h |
| ext $h3b, $h3b, $h3b, #8 |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 |
| ldr $h4q, [$current_tag, #112] @ load h4l | h4h |
| ext $h4b, $h4b, $h4b, #8 |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 |
| ldr $h2q, [$current_tag, #64] @ load h2l | h2h |
| ext $h2b, $h2b, $h2b, #8 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 |
| ldr $rk2q, [$cc, #32] @ load rk2 |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 |
| ldp $rk14_l, $rk14_h, [$cc, #224] @ load rk14 |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 |
| ld1 { $acc_lb}, [$current_tag] |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 |
| ldr $rk9q, [$cc, #144] @ load rk9 |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 |
| ldr $rk12q, [$cc, #192] @ load rk12 |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 |
| ldr $h1q, [$current_tag, #32] @ load h1l | h1h |
| ext $h1b, $h1b, $h1b, #8 |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 |
| ldr $rk10q, [$cc, #160] @ load rk10 |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 9 |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 |
| ldr $rk11q, [$cc, #176] @ load rk11 |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 9 |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 10 |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 9 |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 10 |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 9 |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 10 |
| |
| aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 11 |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 10 |
| |
| aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 11 |
| |
| aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 11 |
| |
| aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 11 |
| |
| trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h |
| |
| trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l |
| |
| trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h |
| trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l |
| |
| aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 12 |
| |
| aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 12 |
| |
| aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 12 |
| |
| aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 12 |
| eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k |
| |
| aese $ctr1b, $rk13 @ AES block 1 - round 13 |
| |
| aese $ctr2b, $rk13 @ AES block 2 - round 13 |
| eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k |
| |
| aese $ctr3b, $rk13 @ AES block 3 - round 13 |
| |
| aese $ctr0b, $rk13 @ AES block 0 - round 13 |
| b.ge .L256_dec_tail @ handle tail |
| |
| ldr $res0q, [$input_ptr, #0] @ AES block 0 - load ciphertext |
| |
| ldr $res1q, [$input_ptr, #16] @ AES block 1 - load ciphertext |
| |
| rev $ctr32w, $rctr32w @ CTR block 4 |
| |
| eor $ctr0b, $res0b, $ctr0b @ AES block 0 - result |
| |
| eor $ctr1b, $res1b, $ctr1b @ AES block 1 - result |
| rev64 $res1b, $res1b @ GHASH block 1 |
| ldr $res3q, [$input_ptr, #48] @ AES block 3 - load ciphertext |
| |
| mov $output_h0, $ctr0.d[1] @ AES block 0 - mov high |
| |
| mov $output_l0, $ctr0.d[0] @ AES block 0 - mov low |
| rev64 $res0b, $res0b @ GHASH block 0 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4 |
| |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 |
| |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4 |
| rev $ctr32w, $rctr32w @ CTR block 5 |
| add $rctr32w, $rctr32w, #1 @ CTR block 5 |
| |
| mov $output_l1, $ctr1.d[0] @ AES block 1 - mov low |
| |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 |
| mov $output_h1, $ctr1.d[1] @ AES block 1 - mov high |
| eor $output_h0, $output_h0, $rk14_h @ AES block 0 - round 14 high |
| |
| eor $output_l0, $output_l0, $rk14_l @ AES block 0 - round 14 low |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 0 - store result |
| fmov $ctr1d, $ctr96_b64x @ CTR block 5 |
| |
| ldr $res2q, [$input_ptr, #32] @ AES block 2 - load ciphertext |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 5 |
| rev $ctr32w, $rctr32w @ CTR block 6 |
| add $rctr32w, $rctr32w, #1 @ CTR block 6 |
| |
| eor $output_l1, $output_l1, $rk14_l @ AES block 1 - round 14 low |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 |
| |
| eor $output_h1, $output_h1, $rk14_h @ AES block 1 - round 14 high |
| stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 1 - store result |
| |
| eor $ctr2b, $res2b, $ctr2b @ AES block 2 - result |
| cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks |
| b.ge .L256_dec_prepretail @ do prepretail |
| |
| .L256_dec_main_loop: @ main loop start |
| mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| rev $ctr32w, $rctr32w @ CTR block 4k+7 |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| eor $output_h2, $output_h2, $rk14_h @ AES block 4k+2 - round 14 high |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| rev64 $res2b, $res2b @ GHASH block 4k+2 |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| eor $output_l2, $output_l2, $rk14_l @ AES block 4k+2 - round 14 low |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| rev64 $res3b, $res3b @ GHASH block 4k+3 |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| eor $output_l3, $output_l3, $rk14_l @ AES block 4k+3 - round 14 low |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| eor $output_h3, $output_h3, $rk14_h @ AES block 4k+3 - round 14 high |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| rev $ctr32w, $rctr32w @ CTR block 4k+8 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| movi $mod_constant.8b, #0xc2 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 11 |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| |
| aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 12 |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 |
| ldr $res0q, [$input_ptr, #0] @ AES block 4k+4 - load ciphertext |
| |
| aese $ctr0b, $rk13 @ AES block 4k+4 - round 13 |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 |
| ldr $res1q, [$input_ptr, #16] @ AES block 4k+5 - load ciphertext |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| eor $ctr0b, $res0b, $ctr0b @ AES block 4k+4 - result |
| |
| aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 11 |
| stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 |
| ldr $res3q, [$input_ptr, #48] @ AES block 4k+7 - load ciphertext |
| |
| aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 12 |
| ldr $res2q, [$input_ptr, #32] @ AES block 4k+6 - load ciphertext |
| |
| aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 11 |
| mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| aese $ctr1b, $rk13 @ AES block 4k+5 - round 13 |
| add $input_ptr, $input_ptr, #64 @ AES input_ptr update |
| mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low |
| |
| aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 12 |
| fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 |
| |
| aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 11 |
| fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 |
| |
| pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| eor $ctr1b, $res1b, $ctr1b @ AES block 4k+5 - result |
| rev $ctr32w, $rctr32w @ CTR block 4k+9 |
| |
| aese $ctr2b, $rk13 @ AES block 4k+6 - round 13 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 |
| cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL |
| |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 |
| |
| eor $output_l0, $output_l0, $rk14_l @ AES block 4k+4 - round 14 low |
| eor $output_h0, $output_h0, $rk14_h @ AES block 4k+4 - round 14 high |
| |
| mov $output_h1, $ctr1.d[1] @ AES block 4k+5 - mov high |
| eor $ctr2b, $res2b, $ctr2b @ AES block 4k+6 - result |
| eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low |
| |
| aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 12 |
| mov $output_l1, $ctr1.d[0] @ AES block 4k+5 - mov low |
| |
| fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 |
| rev $ctr32w, $rctr32w @ CTR block 4k+10 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 |
| |
| aese $ctr3b, $rk13 @ AES block 4k+7 - round 13 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 |
| |
| rev64 $res1b, $res1b @ GHASH block 4k+5 |
| eor $output_h1, $output_h1, $rk14_h @ AES block 4k+5 - round 14 high |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 4k+4 - store result |
| |
| eor $output_l1, $output_l1, $rk14_l @ AES block 4k+5 - round 14 low |
| stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 4k+5 - store result |
| |
| rev64 $res0b, $res0b @ GHASH block 4k+4 |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| b.lt .L256_dec_main_loop |
| |
| |
| .L256_dec_prepretail: @ PREPRETAIL |
| ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 |
| mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low |
| eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result |
| |
| aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 |
| mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high |
| |
| aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 |
| fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 |
| |
| fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 |
| rev $ctr32w, $rctr32w @ CTR block 4k+7 |
| eor $res0b, $res0b, $acc_lb @ PRE 1 |
| |
| rev64 $res2b, $res2b @ GHASH block 4k+2 |
| orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 |
| mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low |
| |
| aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 |
| mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low |
| mov $t0d, $res0.d[1] @ GHASH block 4k - mid |
| fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high |
| fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 |
| |
| aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 |
| mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid |
| |
| aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid |
| |
| pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high |
| |
| aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 |
| rev64 $res3b, $res3b @ GHASH block 4k+3 |
| |
| aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 |
| |
| pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid |
| eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high |
| |
| pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low |
| |
| aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 |
| mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid |
| |
| aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 |
| |
| aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 |
| eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low |
| |
| aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 |
| |
| aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 |
| mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid |
| |
| aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 |
| eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid |
| |
| pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low |
| |
| aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 |
| |
| aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 |
| eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid |
| |
| pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid |
| |
| aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 |
| eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low |
| |
| aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 |
| |
| pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high |
| eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid |
| |
| pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high |
| |
| aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 |
| ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid |
| |
| aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 |
| |
| aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 |
| eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high |
| |
| pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low |
| |
| aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 |
| mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 |
| |
| pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid |
| |
| aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 |
| eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid |
| |
| aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 |
| |
| aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 |
| eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid |
| |
| aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 |
| |
| aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 |
| movi $mod_constant.8b, #0xc2 |
| |
| aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 |
| eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low |
| |
| pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid |
| |
| aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 |
| eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high |
| |
| aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 |
| |
| aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 |
| eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid |
| |
| aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 |
| |
| aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 |
| |
| aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 |
| |
| aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| |
| aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 |
| |
| aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 |
| |
| aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 |
| |
| aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 |
| eor $output_h2, $output_h2, $rk14_h @ AES block 4k+2 - round 14 high |
| |
| aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 |
| eor $output_l3, $output_l3, $rk14_l @ AES block 4k+3 - round 14 low |
| |
| aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 11 |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 11 |
| add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 |
| |
| aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 11 |
| eor $output_l2, $output_l2, $rk14_l @ AES block 4k+2 - round 14 low |
| |
| aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 12 |
| |
| pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| eor $output_h3, $output_h3, $rk14_h @ AES block 4k+3 - round 14 high |
| |
| aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 11 |
| stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result |
| |
| aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 12 |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 12 |
| stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result |
| |
| aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 12 |
| eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low |
| |
| aese $ctr1b, $rk13 @ AES block 4k+5 - round 13 |
| |
| aese $ctr0b, $rk13 @ AES block 4k+4 - round 13 |
| |
| aese $ctr3b, $rk13 @ AES block 4k+7 - round 13 |
| |
| aese $ctr2b, $rk13 @ AES block 4k+6 - round 13 |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| .L256_dec_tail: @ TAIL |
| |
| sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process |
| ld1 { $res1b}, [$input_ptr], #16 @ AES block 4k+4 - load ciphertext |
| |
| eor $ctr0b, $res1b, $ctr0b @ AES block 4k+4 - result |
| |
| mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low |
| |
| mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high |
| ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag |
| |
| cmp $main_end_input_ptr, #48 |
| |
| eor $output_l0, $output_l0, $rk14_l @ AES block 4k+4 - round 14 low |
| |
| eor $output_h0, $output_h0, $rk14_h @ AES block 4k+4 - round 14 high |
| b.gt .L256_dec_blocks_more_than_3 |
| |
| sub $rctr32w, $rctr32w, #1 |
| mov $ctr3b, $ctr2b |
| movi $acc_m.8b, #0 |
| |
| movi $acc_l.8b, #0 |
| cmp $main_end_input_ptr, #32 |
| |
| movi $acc_h.8b, #0 |
| mov $ctr2b, $ctr1b |
| b.gt .L256_dec_blocks_more_than_2 |
| |
| sub $rctr32w, $rctr32w, #1 |
| |
| mov $ctr3b, $ctr1b |
| cmp $main_end_input_ptr, #16 |
| b.gt .L256_dec_blocks_more_than_1 |
| |
| sub $rctr32w, $rctr32w, #1 |
| b .L256_dec_blocks_less_than_1 |
| .L256_dec_blocks_more_than_3: @ blocks left > 3 |
| rev64 $res0b, $res1b @ GHASH final-3 block |
| ld1 { $res1b}, [$input_ptr], #16 @ AES final-2 block - load ciphertext |
| |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-3 block - store result |
| |
| mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| eor $ctr0b, $res1b, $ctr1b @ AES final-2 block - result |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid |
| |
| mov $output_l0, $ctr0.d[0] @ AES final-2 block - mov low |
| |
| mov $output_h0, $ctr0.d[1] @ AES final-2 block - mov high |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid |
| |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high |
| |
| pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid |
| eor $output_l0, $output_l0, $rk14_l @ AES final-2 block - round 14 low |
| |
| pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low |
| eor $output_h0, $output_h0, $rk14_h @ AES final-2 block - round 14 high |
| .L256_dec_blocks_more_than_2: @ blocks left > 2 |
| |
| rev64 $res0b, $res1b @ GHASH final-2 block |
| ld1 { $res1b}, [$input_ptr], #16 @ AES final-1 block - load ciphertext |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-2 block - store result |
| |
| eor $ctr0b, $res1b, $ctr2b @ AES final-1 block - result |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid |
| |
| pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low |
| |
| pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid |
| mov $output_l0, $ctr0.d[0] @ AES final-1 block - mov low |
| |
| mov $output_h0, $ctr0.d[1] @ AES final-1 block - mov high |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high |
| eor $output_l0, $output_l0, $rk14_l @ AES final-1 block - round 14 low |
| |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid |
| eor $output_h0, $output_h0, $rk14_h @ AES final-1 block - round 14 high |
| .L256_dec_blocks_more_than_1: @ blocks left > 1 |
| |
| stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-1 block - store result |
| rev64 $res0b, $res1b @ GHASH final-1 block |
| |
| ld1 { $res1b}, [$input_ptr], #16 @ AES final block - load ciphertext |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| movi $t0.8b, #0 @ suppress further partial tag feed in |
| |
| mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid |
| |
| eor $ctr0b, $res1b, $ctr3b @ AES final block - result |
| |
| pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high |
| |
| eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid |
| |
| pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low |
| mov $output_l0, $ctr0.d[0] @ AES final block - mov low |
| |
| ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid |
| |
| mov $output_h0, $ctr0.d[1] @ AES final block - mov high |
| |
| pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid |
| eor $output_l0, $output_l0, $rk14_l @ AES final block - round 14 low |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high |
| |
| eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid |
| eor $output_h0, $output_h0, $rk14_h @ AES final block - round 14 high |
| .L256_dec_blocks_less_than_1: @ blocks left <= 1 |
| |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| mvn $rk14_h, xzr @ rk14_h = 0xffffffffffffffff |
| |
| sub $bit_length, $bit_length, #128 @ bit_length -= 128 |
| mvn $rk14_l, xzr @ rk14_l = 0xffffffffffffffff |
| |
| ldp $end_input_ptr, $main_end_input_ptr, [$output_ptr] @ load existing bytes we need to not overwrite |
| neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) |
| |
| and $bit_length, $bit_length, #127 @ bit_length %= 128 |
| |
| lsr $rk14_h, $rk14_h, $bit_length @ rk14_h is mask for top 64b of last block |
| cmp $bit_length, #64 |
| |
| csel $ctr32x, $rk14_l, $rk14_h, lt |
| csel $ctr96_b64x, $rk14_h, xzr, lt |
| |
| fmov $ctr0d, $ctr32x @ ctr0b is mask for last block |
| and $output_l0, $output_l0, $ctr32x |
| |
| mov $ctr0.d[1], $ctr96_b64x |
| bic $end_input_ptr, $end_input_ptr, $ctr32x @ mask out low existing bytes |
| |
| rev $ctr32w, $rctr32w |
| |
| bic $main_end_input_ptr, $main_end_input_ptr, $ctr96_b64x @ mask out high existing bytes |
| |
| orr $output_l0, $output_l0, $end_input_ptr |
| |
| and $output_h0, $output_h0, $ctr96_b64x |
| |
| orr $output_h0, $output_h0, $main_end_input_ptr |
| |
| and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits |
| |
| rev64 $res0b, $res1b @ GHASH final block |
| |
| eor $res0b, $res0b, $t0.16b @ feed in partial tag |
| |
| pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low |
| |
| mov $t0d, $res0.d[1] @ GHASH final block - mid |
| |
| eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid |
| |
| pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high |
| |
| pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid |
| |
| eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high |
| |
| eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low |
| |
| eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid |
| movi $mod_constant.8b, #0xc2 |
| |
| eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up |
| |
| shl $mod_constantd, $mod_constantd, #56 @ mod_constant |
| |
| eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up |
| |
| pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid |
| |
| ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment |
| |
| eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid |
| |
| eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid |
| |
| pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low |
| |
| ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment |
| |
| eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low |
| |
| stp $output_l0, $output_h0, [$output_ptr] |
| |
| str $ctr32w, [$counter, #12] @ store the updated counter |
| |
| eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low |
| ext $acc_lb, $acc_lb, $acc_lb, #8 |
| rev64 $acc_lb, $acc_lb |
| mov x0, $len |
| st1 { $acc_l.16b }, [$current_tag] |
| |
| ldp x21, x22, [sp, #16] |
| ldp x23, x24, [sp, #32] |
| ldp d8, d9, [sp, #48] |
| ldp d10, d11, [sp, #64] |
| ldp d12, d13, [sp, #80] |
| ldp d14, d15, [sp, #96] |
| ldp x19, x20, [sp], #112 |
| ret |
| |
| .L256_dec_ret: |
| mov w0, #0x0 |
| ret |
| .size aes_gcm_dec_256_kernel,.-aes_gcm_dec_256_kernel |
| ___ |
| } |
| } |
| |
| $code.=<<___; |
| .asciz "GHASH for ARMv8, CRYPTOGAMS by <appro\@openssl.org>" |
| .align 2 |
| #endif |
| ___ |
| |
| if ($flavour =~ /64/) { ######## 64-bit code |
| sub unvmov { |
| my $arg=shift; |
| |
| $arg =~ m/q([0-9]+)#(lo|hi),\s*q([0-9]+)#(lo|hi)/o && |
| sprintf "ins v%d.d[%d],v%d.d[%d]",$1<8?$1:$1+8,($2 eq "lo")?0:1, |
| $3<8?$3:$3+8,($4 eq "lo")?0:1; |
| } |
| foreach(split("\n",$code)) { |
| s/@\s/\/\//o; # old->new style commentary |
| print $_,"\n"; |
| } |
| } else { ######## 32-bit code |
| sub unvdup32 { |
| my $arg=shift; |
| |
| $arg =~ m/q([0-9]+),\s*q([0-9]+)\[([0-3])\]/o && |
| sprintf "vdup.32 q%d,d%d[%d]",$1,2*$2+($3>>1),$3&1; |
| } |
| sub unvpmullp64 { |
| my ($mnemonic,$arg)=@_; |
| |
| if ($arg =~ m/q([0-9]+),\s*q([0-9]+),\s*q([0-9]+)/o) { |
| my $word = 0xf2a00e00|(($1&7)<<13)|(($1&8)<<19) |
| |(($2&7)<<17)|(($2&8)<<4) |
| |(($3&7)<<1) |(($3&8)<<2); |
| $word |= 0x00010001 if ($mnemonic =~ "2"); |
| # since ARMv7 instructions are always encoded little-endian. |
| # correct solution is to use .inst directive, but older%%%% |
| # assemblers don't implement it:-( |
| sprintf "INST(0x%02x,0x%02x,0x%02x,0x%02x)\t@ %s %s", |
| $word&0xff,($word>>8)&0xff, |
| ($word>>16)&0xff,($word>>24)&0xff, |
| $mnemonic,$arg; |
| } |
| } |
| |
| foreach(split("\n",$code)) { |
| s/\b[wx]([0-9]+)\b/r$1/go; # new->old registers |
| s/\bv([0-9])\.[12468]+[bsd]\b/q$1/go; # new->old registers |
| s/\/\/\s?/@ /o; # new->old style commentary |
| |
| # fix up remaining new-style suffixes |
| s/\],#[0-9]+/]!/o; |
| |
| s/cclr\s+([^,]+),\s*([a-z]+)/mov.$2 $1,#0/o or |
| s/vdup\.32\s+(.*)/unvdup32($1)/geo or |
| s/v?(pmull2?)\.p64\s+(.*)/unvpmullp64($1,$2)/geo or |
| s/\bq([0-9]+)#(lo|hi)/sprintf "d%d",2*$1+($2 eq "hi")/geo or |
| s/^(\s+)b\./$1b/o or |
| s/^(\s+)ret/$1bx\tlr/o; |
| |
| if (s/^(\s+)mov\.([a-z]+)/$1mov$2/) { |
| print " it $2\n"; |
| } |
| |
| print $_,"\n"; |
| } |
| } |
| |
| close STDOUT or die "error closing STDOUT: $!"; # enforce flush |
