openssl/providers/implementations/ciphers/cipher_sm4_gcm.h
Tianjia Zhang c2ee608a23 providers: Add SM4 GCM implementation
The GCM mode of the SM4 algorithm is specifieded by RFC8998.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>

Reviewed-by: Paul Yang <kaishen.yy@antfin.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16491)
2021-09-28 19:27:58 +10:00

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/*
* Copyright 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
*/
#include "crypto/sm4.h"
#include "prov/ciphercommon.h"
#include "prov/ciphercommon_gcm.h"
typedef struct prov_sm4_gcm_ctx_st {
PROV_GCM_CTX base; /* must be first entry in struct */
union {
OSSL_UNION_ALIGN;
SM4_KEY ks;
} ks;
} PROV_SM4_GCM_CTX;
const PROV_GCM_HW *ossl_prov_sm4_hw_gcm(size_t keybits);