mirror of
https://github.com/openssl/openssl.git
synced 2025-01-06 13:26:43 +08:00
e1178600cc
The aes code has been refactored into generic and algorithn specific parts, so that most of the code can be shared. The cipher related files have been broken up into smaller parts. Add chunked variant of mode ciphers - aria uses this (many other ciphers will use this new code instead of the generic code used by aes). Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/9451)
84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/*
|
|
* Copyright 2001-2019 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
|
|
*/
|
|
|
|
/*-
|
|
* AES-NI support for AES modes ecb, cbc, ofb, cfb, ctr.
|
|
* This file is included by cipher_aes_hw.c
|
|
*/
|
|
|
|
#define cipher_hw_aesni_ofb128 cipher_hw_generic_ofb128
|
|
#define cipher_hw_aesni_cfb128 cipher_hw_generic_cfb128
|
|
#define cipher_hw_aesni_cfb8 cipher_hw_generic_cfb8
|
|
#define cipher_hw_aesni_cfb1 cipher_hw_generic_cfb1
|
|
#define cipher_hw_aesni_ctr cipher_hw_generic_ctr
|
|
|
|
static int cipher_hw_aesni_initkey(PROV_CIPHER_CTX *dat,
|
|
const unsigned char *key, size_t keylen)
|
|
{
|
|
int ret;
|
|
PROV_AES_CTX *adat = (PROV_AES_CTX *)dat;
|
|
AES_KEY *ks = &adat->ks.ks;
|
|
|
|
dat->ks = ks;
|
|
|
|
if ((dat->mode == EVP_CIPH_ECB_MODE || dat->mode == EVP_CIPH_CBC_MODE)
|
|
&& !dat->enc) {
|
|
ret = aesni_set_decrypt_key(key, keylen * 8, ks);
|
|
dat->block = (block128_f) aesni_decrypt;
|
|
dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ?
|
|
(cbc128_f) aesni_cbc_encrypt : NULL;
|
|
} else {
|
|
ret = aesni_set_encrypt_key(key, keylen * 8, ks);
|
|
dat->block = (block128_f) aesni_encrypt;
|
|
if (dat->mode == EVP_CIPH_CBC_MODE)
|
|
dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
|
|
else if (dat->mode == EVP_CIPH_CTR_MODE)
|
|
dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
|
|
else
|
|
dat->stream.cbc = NULL;
|
|
}
|
|
|
|
if (ret < 0) {
|
|
ERR_raise(ERR_LIB_PROV, PROV_R_AES_KEY_SETUP_FAILED);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int cipher_hw_aesni_cbc(PROV_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
const AES_KEY *ks = ctx->ks;
|
|
|
|
aesni_cbc_encrypt(in, out, len, ks, ctx->iv, ctx->enc);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int cipher_hw_aesni_ecb(PROV_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
if (len < ctx->blocksize)
|
|
return 1;
|
|
|
|
aesni_ecb_encrypt(in, out, len, ctx->ks, ctx->enc);
|
|
|
|
return 1;
|
|
}
|
|
|
|
#define PROV_CIPHER_HW_declare(mode) \
|
|
static const PROV_CIPHER_HW aesni_##mode = { \
|
|
cipher_hw_aesni_initkey, \
|
|
cipher_hw_aesni_##mode \
|
|
};
|
|
#define PROV_CIPHER_HW_select(mode) \
|
|
if (AESNI_CAPABLE) \
|
|
return &aesni_##mode;
|