[mirror_frr.git] / lib / sha256.h

/*-
 * Copyright 2005,2007,2009 Colin Percival
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
 *
 * $FreeBSD: src/lib/libmd/sha256.h,v 1.2 2006/01/17 15:35:56 phk Exp $
 */

#ifndef _SHA256_H_
#define _SHA256_H_

typedef struct SHA256Context {
	uint32_t state[8];
	uint32_t count[2];
	unsigned char buf[64];
} SHA256_CTX;

typedef struct HMAC_SHA256Context {
	SHA256_CTX ictx;
	SHA256_CTX octx;
} HMAC_SHA256_CTX;

void SHA256_Init(SHA256_CTX *);
void SHA256_Update(SHA256_CTX *, const void *, size_t);
void SHA256_Final(unsigned char[32], SHA256_CTX *);
void HMAC__SHA256_Init(HMAC_SHA256_CTX *, const void *, size_t);
void HMAC__SHA256_Update(HMAC_SHA256_CTX *, const void *, size_t);
void HMAC__SHA256_Final(unsigned char[32], HMAC_SHA256_CTX *);

/**
 * PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen):
 * Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and
 * write the output to buf.  The value dkLen must be at most 32 * (2^32 - 1).
 */
void PBKDF2_SHA256(const uint8_t *, size_t, const uint8_t *, size_t, uint64_t,
		   uint8_t *, size_t);

#endif /* !_SHA256_H_ */
Commit	Line	Data
7f57883e DS	1	/*-
	2	* Copyright 2005,2007,2009 Colin Percival
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	*
	14	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	15	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	16	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	17	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	18	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	19	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	20	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	21	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	22	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	23	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	24	* SUCH DAMAGE.
	25	*
	26	* $FreeBSD: src/lib/libmd/sha256.h,v 1.2 2006/01/17 15:35:56 phk Exp $
	27	*/
	28
	29	#ifndef _SHA256_H_
	30	#define _SHA256_H_
	31
	32	typedef struct SHA256Context {
d62a17ae	33	uint32_t state[8];
	34	uint32_t count[2];
	35	unsigned char buf[64];
7f57883e DS	36	} SHA256_CTX;
	37
	38	typedef struct HMAC_SHA256Context {
d62a17ae	39	SHA256_CTX ictx;
d62a17ae	40	SHA256_CTX octx;
7f57883e DS	41	} HMAC_SHA256_CTX;
7f57883e DS	42
d62a17ae	43	void SHA256_Init(SHA256_CTX *);
	44	void SHA256_Update(SHA256_CTX , const void , size_t);
	45	void SHA256_Final(unsigned char[32], SHA256_CTX *);
	46	void HMAC__SHA256_Init(HMAC_SHA256_CTX , const void , size_t);
	47	void HMAC__SHA256_Update(HMAC_SHA256_CTX , const void , size_t);
	48	void HMAC__SHA256_Final(unsigned char[32], HMAC_SHA256_CTX *);
7f57883e DS	49
	50	/**
	51	* PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen):
	52	* Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and
	53	* write the output to buf. The value dkLen must be at most 32 * (2^32 - 1).
	54	*/
d62a17ae	55	void PBKDF2_SHA256(const uint8_t , size_t, const uint8_t , size_t, uint64_t,
d62a17ae	56	uint8_t *, size_t);
7f57883e DS	57
7f57883e DS	58	#endif /* !_SHA256_H_ */