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/*
* Copyright 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
*/
/* Dispatch functions for AES GCM mode */
#include "cipher_locl.h"
#include "internal/ciphers/cipher_gcm.h"
#include "internal/provider_algs.h"
static void *aes_gcm_newctx(void *provctx, size_t keybits)
{
PROV_AES_GCM_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
if (ctx != NULL)
gcm_initctx(provctx, &ctx->base, keybits, PROV_AES_HW_gcm(keybits), 8);
return ctx;
}
static OSSL_OP_cipher_freectx_fn aes_gcm_freectx;
static void aes_gcm_freectx(void *vctx)
{
PROV_AES_GCM_CTX *ctx = (PROV_AES_GCM_CTX *)vctx;
gcm_deinitctx((PROV_GCM_CTX *)ctx);
OPENSSL_clear_free(ctx, sizeof(*ctx));
}
/* aes128gcm_functions */
IMPLEMENT_aead_cipher(aes, gcm, GCM, AEAD_FLAGS, 128, 8, 96);
/* aes192gcm_functions */
IMPLEMENT_aead_cipher(aes, gcm, GCM, AEAD_FLAGS, 192, 8, 96);
/* aes256gcm_functions */
IMPLEMENT_aead_cipher(aes, gcm, GCM, AEAD_FLAGS, 256, 8, 96);
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