1/*
2 * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
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
8 */
9
10#include "cipher_sm4.h"
11
12static int cipher_hw_sm4_initkey(PROV_CIPHER_CTX *ctx,
13                                 const unsigned char *key, size_t keylen)
14{
15    PROV_SM4_CTX *sctx =  (PROV_SM4_CTX *)ctx;
16    SM4_KEY *ks = &sctx->ks.ks;
17
18    ossl_sm4_set_key(key, ks);
19    ctx->ks = ks;
20    if (ctx->enc
21            || (ctx->mode != EVP_CIPH_ECB_MODE
22                && ctx->mode != EVP_CIPH_CBC_MODE))
23        ctx->block = (block128_f)ossl_sm4_encrypt;
24    else
25        ctx->block = (block128_f)ossl_sm4_decrypt;
26    return 1;
27}
28
29IMPLEMENT_CIPHER_HW_COPYCTX(cipher_hw_sm4_copyctx, PROV_SM4_CTX)
30
31# define PROV_CIPHER_HW_sm4_mode(mode)                                         \
32static const PROV_CIPHER_HW sm4_##mode = {                                     \
33    cipher_hw_sm4_initkey,                                                     \
34    ossl_cipher_hw_chunked_##mode,                                             \
35    cipher_hw_sm4_copyctx                                                      \
36};                                                                             \
37const PROV_CIPHER_HW *ossl_prov_cipher_hw_sm4_##mode(size_t keybits)           \
38{                                                                              \
39    return &sm4_##mode;                                                        \
40}
41
42PROV_CIPHER_HW_sm4_mode(cbc)
43PROV_CIPHER_HW_sm4_mode(ecb)
44PROV_CIPHER_HW_sm4_mode(ofb128)
45PROV_CIPHER_HW_sm4_mode(cfb128)
46PROV_CIPHER_HW_sm4_mode(ctr)
47