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/* ====================================================================
*
*
* BSD LICENSE
*
* Copyright(c) 2023-2025 Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* ====================================================================
*/
/*****************************************************************************
* @file qat_sw_sm4_cbc.h
*
* This file provides an SM4 interface for an OpenSSL engine
*
*****************************************************************************/
#ifndef QAT_SW_SM4_CBC_H
# define QAT_SW_SM4_CBC_H
# ifndef QAT_OPENSSL_PROVIDER
# include <openssl/engine.h>
# endif
# include <openssl/evp.h>
# include <openssl/ossl_typ.h>
/* BabaSSL includes needed for sw method */
# include <openssl/modes.h>
/* QAT_SW SM4 methods declaration */
#ifdef ENABLE_QAT_SW_SM4_CBC
#define SM4_IV_LEN 16
/* BabaSSL flags needed for sw method */
# define SM4_CBC_CUSTOM_FLAGS ( EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 )
/* Guarantee the compatibility of OPENSSL1.1 */
#ifndef ecb128_f
typedef void (*ecb128_f) (const unsigned char *in, unsigned char *out,
size_t len, const void *key,
int enc);
#endif
typedef struct {
sm4_key key;
int8u iv[SM4_IV_LEN];
int iv_set;
int enc;
void *sw_ctx_cipher_data;
} SM4_CBC_CTX;
/* sm4 key struct from BabaSSL */
# define SM4_KEY_SCHEDULE 32
typedef struct SM4_KEY_st {
uint32_t rk[SM4_KEY_SCHEDULE];
} SM4_KEY;
typedef struct {
union {
SM4_KEY ks;
} ks;
block128_f block;
union {
ecb128_f ecb;
cbc128_f cbc;
ctr128_f ctr;
} stream;
} EVP_SM4_KEY;
#ifndef QAT_OPENSSL_PROVIDER
int qat_sw_sm4_cbc_key_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc);
int qat_sw_sm4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len);
int qat_sw_sm4_cbc_cleanup(EVP_CIPHER_CTX *ctx);
#else
int qat_sw_sm4_cbc_cipher(void *ctx, unsigned char *out,
size_t *outl, size_t outsize,
const unsigned char *in, size_t len);
int qat_sw_sm4_cbc_key_init(void *ctx, const unsigned char *inkey,
int keylen, const unsigned char *iv,
int ivlen, int enc);
int qat_sw_sm4_cbc_cleanup(void *ctx);
#endif
void process_mb_sm4_cbc_key_init_reqs(mb_thread_data *tlv);
void process_mb_sm4_cbc_cipher_enc_reqs(mb_thread_data *tlv);
void process_mb_sm4_cbc_cipher_dec_reqs(mb_thread_data *tlv);
#endif /* ENABLE_QAT_SW_SM4_CBC */
#endif /* QAT_SW_SM4_CBC_H */
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