mirror of
https://github.com/openssl/openssl.git
synced 2024-12-27 06:21:43 +08:00
c2ee608a23
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)
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/*
|
|
* 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
|
|
*/
|
|
|
|
/*-
|
|
* Generic support for SM4 CCM.
|
|
*/
|
|
|
|
#include "cipher_sm4_ccm.h"
|
|
|
|
static int ccm_sm4_initkey(PROV_CCM_CTX *ctx,
|
|
const unsigned char *key, size_t keylen)
|
|
{
|
|
PROV_SM4_CCM_CTX *actx = (PROV_SM4_CCM_CTX *)ctx;
|
|
|
|
ossl_sm4_set_key(key, &actx->ks.ks);
|
|
CRYPTO_ccm128_init(&ctx->ccm_ctx, ctx->m, ctx->l, &actx->ks.ks,
|
|
(block128_f)ossl_sm4_encrypt);
|
|
ctx->str = NULL;
|
|
ctx->key_set = 1;
|
|
return 1;
|
|
}
|
|
|
|
static const PROV_CCM_HW ccm_sm4 = {
|
|
ccm_sm4_initkey,
|
|
ossl_ccm_generic_setiv,
|
|
ossl_ccm_generic_setaad,
|
|
ossl_ccm_generic_auth_encrypt,
|
|
ossl_ccm_generic_auth_decrypt,
|
|
ossl_ccm_generic_gettag
|
|
};
|
|
|
|
const PROV_CCM_HW *ossl_prov_sm4_hw_ccm(size_t keybits)
|
|
{
|
|
return &ccm_sm4;
|
|
}
|