mirror of
https://github.com/openssl/openssl.git
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f8c0218f09
Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/9941)
96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
/*
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* Copyright 2001-2019 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*-
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* Sparc t4 support for AES modes ecb, cbc, ofb, cfb, ctr.
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* This file is included by cipher_aes_hw.c
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*/
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static int cipher_hw_aes_t4_initkey(PROV_CIPHER_CTX *dat,
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const unsigned char *key, size_t keylen)
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{
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int ret, bits;
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PROV_AES_CTX *adat = (PROV_AES_CTX *)dat;
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AES_KEY *ks = &adat->ks.ks;
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dat->ks = (const void *)ks; /* used by cipher_hw_generic_XXX */
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bits = keylen * 8;
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if ((dat->mode == EVP_CIPH_ECB_MODE || dat->mode == EVP_CIPH_CBC_MODE)
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&& !dat->enc) {
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ret = 0;
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aes_t4_set_decrypt_key(key, bits, ks);
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dat->block = (block128_f)aes_t4_decrypt;
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switch (bits) {
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case 128:
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dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ?
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(cbc128_f)aes128_t4_cbc_decrypt : NULL;
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break;
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case 192:
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dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ?
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(cbc128_f)aes192_t4_cbc_decrypt : NULL;
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break;
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case 256:
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dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ?
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(cbc128_f)aes256_t4_cbc_decrypt : NULL;
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break;
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default:
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ret = -1;
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}
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} else {
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ret = 0;
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aes_t4_set_encrypt_key(key, bits, ks);
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dat->block = (block128_f)aes_t4_encrypt;
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switch (bits) {
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case 128:
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if (dat->mode == EVP_CIPH_CBC_MODE)
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dat->stream.cbc = (cbc128_f)aes128_t4_cbc_encrypt;
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else if (dat->mode == EVP_CIPH_CTR_MODE)
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dat->stream.ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
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else
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dat->stream.cbc = NULL;
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break;
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case 192:
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if (dat->mode == EVP_CIPH_CBC_MODE)
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dat->stream.cbc = (cbc128_f)aes192_t4_cbc_encrypt;
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else if (dat->mode == EVP_CIPH_CTR_MODE)
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dat->stream.ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
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else
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dat->stream.cbc = NULL;
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break;
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case 256:
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if (dat->mode == EVP_CIPH_CBC_MODE)
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dat->stream.cbc = (cbc128_f)aes256_t4_cbc_encrypt;
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else if (dat->mode == EVP_CIPH_CTR_MODE)
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dat->stream.ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
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else
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dat->stream.cbc = NULL;
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break;
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default:
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ret = -1;
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}
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}
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if (ret < 0) {
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ERR_raise(ERR_LIB_PROV, PROV_R_AES_KEY_SETUP_FAILED);
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return 0;
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}
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return 1;
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}
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#define PROV_CIPHER_HW_declare(mode) \
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static const PROV_CIPHER_HW aes_t4_##mode = { \
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cipher_hw_aes_t4_initkey, \
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cipher_hw_generic_##mode \
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};
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#define PROV_CIPHER_HW_select(mode) \
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if (SPARC_AES_CAPABLE) \
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return &aes_t4_##mode;
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