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/*
* Copyright 2001-2019 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 GCM.
* This file is included by cipher_aes_gcm_hw.c
*/
static int aesni_gcm_initkey(PROV_GCM_CTX *ctx, const unsigned char *key,
size_t keylen)
{
PROV_AES_GCM_CTX *actx = (PROV_AES_GCM_CTX *)ctx;
AES_KEY *ks = &actx->ks.ks;
GCM_HW_SET_KEY_CTR_FN(ks, aesni_set_encrypt_key, aesni_encrypt,
aesni_ctr32_encrypt_blocks);
return 1;
}
static const PROV_GCM_HW aesni_gcm = {
aesni_gcm_initkey,
gcm_setiv,
gcm_aad_update,
generic_aes_gcm_cipher_update,
gcm_cipher_final,
gcm_one_shot
};
const PROV_GCM_HW *PROV_AES_HW_gcm(size_t keybits)
{
return AESNI_CAPABLE ? &aesni_gcm : &aes_gcm;
}
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