| /* |
| * Copyright 2019-2021 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 "include/crypto/chacha.h" |
| #include "prov/ciphercommon.h" |
| |
| typedef struct { |
| PROV_CIPHER_CTX base; /* must be first */ |
| union { |
| OSSL_UNION_ALIGN; |
| unsigned int d[CHACHA_KEY_SIZE / 4]; |
| } key; |
| unsigned int counter[CHACHA_CTR_SIZE / 4]; |
| unsigned char buf[CHACHA_BLK_SIZE]; |
| unsigned int partial_len; |
| } PROV_CHACHA20_CTX; |
| |
| typedef struct prov_cipher_hw_chacha20_st { |
| PROV_CIPHER_HW base; /* must be first */ |
| int (*initiv)(PROV_CIPHER_CTX *ctx); |
| |
| } PROV_CIPHER_HW_CHACHA20; |
| |
| const PROV_CIPHER_HW *ossl_prov_cipher_hw_chacha20(size_t keybits); |
| |
| OSSL_FUNC_cipher_encrypt_init_fn ossl_chacha20_einit; |
| OSSL_FUNC_cipher_decrypt_init_fn ossl_chacha20_dinit; |
| void ossl_chacha20_initctx(PROV_CHACHA20_CTX *ctx); |