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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
*/
/*-
* Fujitsu SPARC64 X support for AES GCM.
* This file is included by cipher_aes_gcm_hw.c
*/
static int t4_aes_gcm_initkey(PROV_GCM_CTX *ctx, const unsigned char *key,
size_t keylen)
{
ctr128_f ctr;
PROV_AES_GCM_CTX *actx = (PROV_AES_GCM_CTX *)ctx;
AES_KEY *ks = &actx->ks.ks;
switch (keylen) {
case 16:
ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
break;
case 24:
ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
break;
case 32:
ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
break;
default:
return 0;
}
GCM_HW_SET_KEY_CTR_FN(ks, aes_t4_set_encrypt_key, aes_t4_encrypt, ctr);
return 1;
}
static const PROV_GCM_HW t4_aes_gcm = {
t4_aes_gcm_initkey,
ossl_gcm_setiv,
ossl_gcm_aad_update,
generic_aes_gcm_cipher_update,
ossl_gcm_cipher_final,
ossl_gcm_one_shot
};
const PROV_GCM_HW *ossl_prov_aes_hw_gcm(size_t keybits)
{
return SPARC_AES_CAPABLE ? &t4_aes_gcm : &aes_gcm;
}
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