/* * Copyright 2001-2020 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 */ /*- * 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 ossl_cipher_hw_generic_ofb128 #define cipher_hw_aesni_cfb128 ossl_cipher_hw_generic_cfb128 #define cipher_hw_aesni_cfb8 ossl_cipher_hw_generic_cfb8 #define cipher_hw_aesni_cfb1 ossl_cipher_hw_generic_cfb1 #define cipher_hw_aesni_ctr ossl_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, \ cipher_hw_aes_copyctx \ }; #define PROV_CIPHER_HW_select(mode) \ if (AESNI_CAPABLE) \ return &aesni_##mode;