2 * Copyright 2019 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 "internal/provider_algs.h"
15 /* TODO (3.0) Figure out what flags to pass */
16 #define SM4_FLAGS EVP_CIPH_FLAG_DEFAULT_ASN1
18 static OSSL_OP_cipher_freectx_fn sm4_freectx;
19 static OSSL_OP_cipher_dupctx_fn sm4_dupctx;
21 static void sm4_freectx(void *vctx)
23 PROV_SM4_CTX *ctx = (PROV_SM4_CTX *)vctx;
25 OPENSSL_clear_free(ctx, sizeof(*ctx));
28 static void *sm4_dupctx(void *ctx)
30 PROV_SM4_CTX *in = (PROV_SM4_CTX *)ctx;
31 PROV_SM4_CTX *ret = OPENSSL_malloc(sizeof(*ret));
34 ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
42 /* sm4128ecb_functions */
43 IMPLEMENT_generic_cipher(sm4, SM4, ecb, ECB, SM4_FLAGS, 128, 128, 0, block)
44 /* sm4128cbc_functions */
45 IMPLEMENT_generic_cipher(sm4, SM4, cbc, CBC, SM4_FLAGS, 128, 128, 128, block)
46 /* sm4128ctr_functions */
47 IMPLEMENT_generic_cipher(sm4, SM4, ctr, CTR, SM4_FLAGS, 128, 8, 128, stream)
48 /* sm4128ofb128_functions */
49 IMPLEMENT_generic_cipher(sm4, SM4, ofb128, OFB, SM4_FLAGS, 128, 8, 128, stream)
50 /* sm4128cfb128_functions */
51 IMPLEMENT_generic_cipher(sm4, SM4, cfb128, CFB, SM4_FLAGS, 128, 8, 128, stream)