/* crypto/sm9/sm9.h */
/* ====================================================================
 * Copyright (c) 2016 The GmSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the GmSSL Project.
 *    (http://gmssl.org/)"
 *
 * 4. The name "GmSSL Project" must not be used to endorse or promote
 *    products derived from this software without prior written
 *    permission. For written permission, please contact
 *    guanzhi1980@gmail.com.
 *
 * 5. Products derived from this software may not be called "GmSSL"
 *    nor may "GmSSL" appear in their names without prior written
 *    permission of the GmSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the GmSSL Project
 *    (http://gmssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 GmSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * ====================================================================
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 */


#ifndef HEADER_SM9_H
#define HEADER_SM9_H

#include <openssl/evp.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef struct sm9_public_params_st SM9_PUBLIC_PARAMS;
typedef struct sm9_master_secret_st SM9_MASTER_SECRET;

#define SM9_VERIFY_SUCCESS	 1
#define SM9_VERIFY_FAILED	 0
#define SM9_VERIFY_INNER_ERROR	-1

int SM9_setup(SM9_PUBLIC_PARAMS **params, SM9_MASTER_SECRET **master);
void SM9_PUBLIC_PARAMS_free(SM9_PUBLIC_PARAMS *a);
void SM9_MASTER_SECRET_free(SM9_MASTER_SECRET *a);
int i2d_SM9_PUBLIC_PARAMS(SM9_PUBLIC_PARAMS *a, unsigned char *out);
int i2d_SM9_MASTER_SECRET(SM9_MASTER_SECRET *a, unsigned char *out);
SM9_PUBLIC_PARAMS *d2i_SM9_PUBLIC_PARAMS(SM9_PUBLIC_PARAMS **a, const unsigned char **in, long len);
SM9_MASTER_SECRET *d2i_SM9_MASTER_SECRET(SM9_MASTER_SECRET **a, const unsigned char **in, long len);

EVP_PKEY *SM9_extract_private_key(SM9_MASTER_SECRET *master,
	const char *id, size_t idlen, EVP_PKEY **pkey);

int SM9_encrypt(SM9_PUBLIC_PARAMS *params,
	const unsigned char *in, size_t inlen,
	unsigned char *out, size_t *outlen,
	const char *id, size_t idlen);
int SM9_decrypt(SM9_PUBLIC_PARAMS *params,
	const unsigned char *in, size_t inlen,
	unsigned char *out, size_t *outlen,
	EVP_PKEY *pkey);


/* BEGIN ERROR CODES */
/*
 * The following lines are auto generated by the script mkerr.pl. Any changes
 * made after this point may be overwritten when the script is next run.
 */
void ERR_load_SM9_strings(void);

/* Error codes for the SM9 functions. */

/* Function codes. */
# define SM9_F_D2I_SM9_MASTER_SECRET                      100
# define SM9_F_D2I_SM9_PUBLIC_PARAMS                      101
# define SM9_F_I2D_SM9_MASTER_SECRET                      102
# define SM9_F_I2D_SM9_PUBLIC_PARAMS                      103
# define SM9_F_SM9_DECRYPT                                104
# define SM9_F_SM9_ENCRYPT                                105
# define SM9_F_SM9_EXTRACT_PRIVATE_KEY                    106
# define SM9_F_SM9_PUBLIC_PARAMS_FREE                     107
# define SM9_F_SM9_SETUP                                  108

/* Reason codes. */
# define SM9_R_NOT_IMPLEMENTED                            100

#ifdef  __cplusplus
}
#endif
#endif