2 * Copyright 2019-2020 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
10 /* Dispatch functions for cast cipher modes ecb, cbc, ofb, cfb */
12 #include "cipher_sm4.h"
13 #include "prov/implementations.h"
15 static OSSL_FUNC_cipher_freectx_fn sm4_freectx;
16 static OSSL_FUNC_cipher_dupctx_fn sm4_dupctx;
18 static void sm4_freectx(void *vctx)
20 PROV_SM4_CTX *ctx = (PROV_SM4_CTX *)vctx;
22 cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
23 OPENSSL_clear_free(ctx, sizeof(*ctx));
26 static void *sm4_dupctx(void *ctx)
28 PROV_SM4_CTX *in = (PROV_SM4_CTX *)ctx;
29 PROV_SM4_CTX *ret = OPENSSL_malloc(sizeof(*ret));
32 ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
35 in->base.hw->copyctx(&ret->base, &in->base);
40 /* sm4128ecb_functions */
41 IMPLEMENT_generic_cipher(sm4, SM4, ecb, ECB, 0, 128, 128, 0, block)
42 /* sm4128cbc_functions */
43 IMPLEMENT_generic_cipher(sm4, SM4, cbc, CBC, 0, 128, 128, 128, block)
44 /* sm4128ctr_functions */
45 IMPLEMENT_generic_cipher(sm4, SM4, ctr, CTR, 0, 128, 8, 128, stream)
46 /* sm4128ofb128_functions */
47 IMPLEMENT_generic_cipher(sm4, SM4, ofb128, OFB, 0, 128, 8, 128, stream)
48 /* sm4128cfb128_functions */
49 IMPLEMENT_generic_cipher(sm4, SM4, cfb128, CFB, 0, 128, 8, 128, stream)