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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)
95 lines
3.2 KiB
C++
95 lines
3.2 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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dat->ks = &adat->ks.ks;
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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, dat->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, dat->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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