]>
git.ipfire.org Git - thirdparty/openssl.git/blob - providers/implementations/ciphers/cipher_sm4_gcm_hw.c
2 * Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * Generic support for SM4 GCM.
14 #include "cipher_sm4_gcm.h"
16 static int sm4_gcm_initkey(PROV_GCM_CTX
*ctx
, const unsigned char *key
,
19 PROV_SM4_GCM_CTX
*actx
= (PROV_SM4_GCM_CTX
*)ctx
;
20 SM4_KEY
*ks
= &actx
->ks
.ks
;
23 ossl_sm4_set_key(key
, ks
);
24 CRYPTO_gcm128_init(&ctx
->gcm
, ks
, (block128_f
)ossl_sm4_encrypt
);
25 ctx
->ctr
= (ctr128_f
)NULL
;
31 static const PROV_GCM_HW sm4_gcm
= {
35 ossl_gcm_cipher_update
,
36 ossl_gcm_cipher_final
,
40 const PROV_GCM_HW
*ossl_prov_sm4_hw_gcm(size_t keybits
)