/* crypto/skf/skf_lcl.h */
/* ====================================================================
 * Copyright (c) 2016 The GmSSL Project.  All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
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 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    distribution.
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 * 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
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 * 5. Products derived from this software may not be called "GmSSL"
 *    nor may "GmSSL" appear in their names without prior written
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 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the GmSSL Project
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#ifndef HEADER_SKF_LCL_H
#define HEADER_SKF_LCL_H

#include <openssl/evp.h>
#include <openssl/cmac.h>
#include <openssl/cbcmac.h>

#ifdef __cplusplus
extern "C" {
#endif

#define SKF_HANDLE_MAGIC 	0x31323334
#define SKF_HASH_HANDLE		1
#define SKF_MAC_HANDLE		2
#define SKF_KEY_HANDLE		10
#define SKF_CIPHER_HANDLE	11

struct SKF_HANDLE {
	unsigned int magic;
	int type;
	int algid;
	unsigned int keylen;
	unsigned char key[EVP_MAX_KEY_LENGTH];
	union {
		EVP_MD_CTX *md_ctx;
		CBCMAC_CTX *cbcmac_ctx;
		EVP_CIPHER_CTX *cipher_ctx;
	} u;
	struct SKF_HANDLE *next;
	struct SKF_HANDLE *prev;
};

typedef struct SKF_HANDLE SKF_HANDLE;

SKF_HANDLE *SKF_HANDLE_new(int type);
EVP_MD_CTX *SKF_HANDLE_get_md_ctx(SKF_HANDLE *hHash);
CBCMAC_CTX *SKF_HANDLE_get_cbcmac_ctx(SKF_HANDLE *hMac);
EVP_CIPHER_CTX *SKF_HANDLE_get_cipher_ctx(SKF_HANDLE *hKey);
unsigned char *SKF_HANDLE_get_key(SKF_HANDLE *hKey);
int SKF_HANDLE_set1_md_ctx(SKF_HANDLE *hHash, EVP_MD_CTX *ctx);
int SKF_HANDLE_set1_cbcmac_ctx(SKF_HANDLE *hMac, CBCMAC_CTX *ctx);
int SKF_HANDLE_set1_cipher_ctx(SKF_HANDLE *hKey, EVP_CIPHER_CTX *ctx);
int SKF_HANDLE_free(SKF_HANDLE *handle);


#ifdef  __cplusplus
}
#endif
#endif