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/*
* Copyright 2001-2021 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
*/
/*-
* Sparc t4 support for AES modes ecb, cbc, ofb, cfb, ctr.
* This file is included by cipher_aes_hw.c
*/
static int cipher_hw_aes_t4_initkey(PROV_CIPHER_CTX *dat,
const unsigned char *key, size_t keylen)
{
int ret, bits;
PROV_AES_CTX *adat = (PROV_AES_CTX *)dat;
AES_KEY *ks = &adat->ks.ks;
dat->ks = (const void *)ks; /* used by cipher_hw_generic_XXX */
bits = keylen * 8;
if ((dat->mode == EVP_CIPH_ECB_MODE || dat->mode == EVP_CIPH_CBC_MODE)
&& !dat->enc) {
ret = 0;
aes_t4_set_decrypt_key(key, bits, ks);
dat->block = (block128_f)aes_t4_decrypt;
switch (bits) {
case 128:
dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ?
(cbc128_f)aes128_t4_cbc_decrypt : NULL;
break;
case 192:
dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ?
(cbc128_f)aes192_t4_cbc_decrypt : NULL;
break;
case 256:
dat->stream.cbc = dat->mode == EVP_CIPH_CBC_MODE ?
(cbc128_f)aes256_t4_cbc_decrypt : NULL;
break;
default:
ret = -1;
}
} else {
ret = 0;
aes_t4_set_encrypt_key(key, bits, ks);
dat->block = (block128_f)aes_t4_encrypt;
switch (bits) {
case 128:
if (dat->mode == EVP_CIPH_CBC_MODE)
dat->stream.cbc = (cbc128_f)aes128_t4_cbc_encrypt;
else if (dat->mode == EVP_CIPH_CTR_MODE)
dat->stream.ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
else
dat->stream.cbc = NULL;
break;
case 192:
if (dat->mode == EVP_CIPH_CBC_MODE)
dat->stream.cbc = (cbc128_f)aes192_t4_cbc_encrypt;
else if (dat->mode == EVP_CIPH_CTR_MODE)
dat->stream.ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
else
dat->stream.cbc = NULL;
break;
case 256:
if (dat->mode == EVP_CIPH_CBC_MODE)
dat->stream.cbc = (cbc128_f)aes256_t4_cbc_encrypt;
else if (dat->mode == EVP_CIPH_CTR_MODE)
dat->stream.ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
else
dat->stream.cbc = NULL;
break;
default:
ret = -1;
}
}
if (ret < 0) {
ERR_raise(ERR_LIB_PROV, PROV_R_KEY_SETUP_FAILED);
return 0;
}
return 1;
}
#define PROV_CIPHER_HW_declare(mode) \
static const PROV_CIPHER_HW aes_t4_##mode = { \
cipher_hw_aes_t4_initkey, \
ossl_cipher_hw_generic_##mode, \
cipher_hw_aes_copyctx \
};
#define PROV_CIPHER_HW_select(mode) \
if (SPARC_AES_CAPABLE) \
return &aes_t4_##mode;
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