| /* |
| * Copyright 2009-2021 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 |
| */ |
| |
| #include "internal/cryptlib.h" |
| #include "crypto/ppc_arch.h" |
| #include "ec_local.h" |
| |
| void ecp_nistz256_mul_mont(unsigned long res[4], const unsigned long a[4], |
| const unsigned long b[4]); |
| |
| void ecp_nistz256_to_mont(unsigned long res[4], const unsigned long in[4]); |
| void ecp_nistz256_to_mont(unsigned long res[4], const unsigned long in[4]) |
| { |
| static const unsigned long RR[] = { 0x0000000000000003U, |
| 0xfffffffbffffffffU, |
| 0xfffffffffffffffeU, |
| 0x00000004fffffffdU }; |
| |
| ecp_nistz256_mul_mont(res, in, RR); |
| } |
| |
| void ecp_nistz256_from_mont(unsigned long res[4], const unsigned long in[4]); |
| void ecp_nistz256_from_mont(unsigned long res[4], const unsigned long in[4]) |
| { |
| static const unsigned long one[] = { 1, 0, 0, 0 }; |
| |
| ecp_nistz256_mul_mont(res, in, one); |
| } |