diff options
Diffstat (limited to 'providers/default/ciphers/cipher_sm4.c')
-rw-r--r-- | providers/default/ciphers/cipher_sm4.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/providers/default/ciphers/cipher_sm4.c b/providers/default/ciphers/cipher_sm4.c new file mode 100644 index 0000000000..8b7c3761ca --- /dev/null +++ b/providers/default/ciphers/cipher_sm4.c @@ -0,0 +1,51 @@ +/* + * Copyright 2019 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 + */ + +/* Dispatch functions for cast cipher modes ecb, cbc, ofb, cfb */ + +#include "cipher_sm4.h" +#include "internal/provider_algs.h" + +/* TODO (3.0) Figure out what flags to pass */ +#define SM4_FLAGS EVP_CIPH_FLAG_DEFAULT_ASN1 + +static OSSL_OP_cipher_freectx_fn sm4_freectx; +static OSSL_OP_cipher_dupctx_fn sm4_dupctx; + +static void sm4_freectx(void *vctx) +{ + PROV_SM4_CTX *ctx = (PROV_SM4_CTX *)vctx; + + OPENSSL_clear_free(ctx, sizeof(*ctx)); +} + +static void *sm4_dupctx(void *ctx) +{ + PROV_SM4_CTX *in = (PROV_SM4_CTX *)ctx; + PROV_SM4_CTX *ret = OPENSSL_malloc(sizeof(*ret)); + + if (ret == NULL) { + ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); + return NULL; + } + *ret = *in; + + return ret; +} + +/* sm4128ecb_functions */ +IMPLEMENT_generic_cipher(sm4, SM4, ecb, ECB, SM4_FLAGS, 128, 128, 0, block) +/* sm4128cbc_functions */ +IMPLEMENT_generic_cipher(sm4, SM4, cbc, CBC, SM4_FLAGS, 128, 128, 128, block) +/* sm4128ctr_functions */ +IMPLEMENT_generic_cipher(sm4, SM4, ctr, CTR, SM4_FLAGS, 128, 8, 128, stream) +/* sm4128ofb128_functions */ +IMPLEMENT_generic_cipher(sm4, SM4, ofb128, OFB, SM4_FLAGS, 128, 8, 128, stream) +/* sm4128cfb128_functions */ +IMPLEMENT_generic_cipher(sm4, SM4, cfb128, CFB, SM4_FLAGS, 128, 8, 128, stream) |