[people/stevee/aiccu.git] / common / hash_md5.h

/*
 * This is the header file for the MD5 message-digest algorithm.
 * The algorithm is due to Ron Rivest.  This code was
 * written by Colin Plumb in 1993, no copyright is claimed.
 * This code is in the public domain; do with it what you wish.
 *
 * Equivalent code is available from RSA Data Security, Inc.
 * This code has been tested against that, and is equivalent,
 * except that you don't need to include two pages of legalese
 * with every copy.
 *
 * To compute the message digest of a chunk of bytes, declare an
 * MD5Context structure, pass it to MD5Init, call MD5Update as
 * needed on buffers full of bytes, and then call MD5Final, which
 * will fill a supplied 16-byte array with the digest.
 *
 * Changed so as no longer to depend on Colin Plumb's `usual.h'
 * header definitions; now uses stuff from dpkg's config.h
 *  - Ian Jackson <ian@chiark.greenend.org.uk>.
 * Still in the public domain.
 */

#ifndef MD5_H
#define MD5_H

#include "common.h"

#ifdef _WIN32
typedef unsigned long uint32;
#define UWORD32 uint32

#else /* _WIN32 */

#ifdef _SUNOS
typedef unsigned int uint32;
#define UWORD32 uint32
#else
#define UWORD32 u_int32_t
#endif /* _SUNOS */

#endif /* _WIN32 */

/* Determine Endianness */
#if BYTE_ORDER == LITTLE_ENDIAN
	/* 1234 machines */
#elif BYTE_ORDER == BIG_ENDIAN
	/* 4321 machines */
# define WORDS_BIGENDIAN 1
#elif BYTE_ORDER == PDP_ENDIAN
	/* 3412 machines */
#error PDP endianness not supported yet!
#else
#error unknown endianness!
#endif

#define md5byte unsigned char

struct MD5Context {
	UWORD32 buf[4];
	UWORD32 bytes[2];
	UWORD32 in[16];
};

void MD5Init(struct MD5Context *context);
void MD5Update(struct MD5Context *context, md5byte const *buf, unsigned len);
void MD5Final(unsigned char digest[16], struct MD5Context *context);
void MD5Transform(UWORD32 buf[4], UWORD32 const in[16]);

#endif /* !MD5_H */
Commit	Line	Data
d98f6a46 SS	1	/*
	2	* This is the header file for the MD5 message-digest algorithm.
	3	* The algorithm is due to Ron Rivest. This code was
	4	* written by Colin Plumb in 1993, no copyright is claimed.
	5	* This code is in the public domain; do with it what you wish.
	6	*
	7	* Equivalent code is available from RSA Data Security, Inc.
	8	* This code has been tested against that, and is equivalent,
	9	* except that you don't need to include two pages of legalese
	10	* with every copy.
	11	*
	12	* To compute the message digest of a chunk of bytes, declare an
	13	* MD5Context structure, pass it to MD5Init, call MD5Update as
	14	* needed on buffers full of bytes, and then call MD5Final, which
	15	* will fill a supplied 16-byte array with the digest.
	16	*
	17	* Changed so as no longer to depend on Colin Plumb's `usual.h'
	18	* header definitions; now uses stuff from dpkg's config.h
	19	* - Ian Jackson <ian@chiark.greenend.org.uk>.
	20	* Still in the public domain.
	21	*/
	22
	23	#ifndef MD5_H
	24	#define MD5_H
	25
	26	#include "common.h"
	27
	28	#ifdef _WIN32
	29	typedef unsigned long uint32;
	30	#define UWORD32 uint32
	31
	32	#else /* _WIN32 */
	33
	34	#ifdef _SUNOS
	35	typedef unsigned int uint32;
	36	#define UWORD32 uint32
	37	#else
	38	#define UWORD32 u_int32_t
	39	#endif /* _SUNOS */
	40
	41	#endif /* _WIN32 */
	42
	43	/* Determine Endianness */
	44	#if BYTE_ORDER == LITTLE_ENDIAN
	45	/* 1234 machines */
	46	#elif BYTE_ORDER == BIG_ENDIAN
	47	/* 4321 machines */
	48	# define WORDS_BIGENDIAN 1
	49	#elif BYTE_ORDER == PDP_ENDIAN
	50	/* 3412 machines */
	51	#error PDP endianness not supported yet!
	52	#else
	53	#error unknown endianness!
	54	#endif
	55
	56	#define md5byte unsigned char
	57
	58	struct MD5Context {
	59	UWORD32 buf[4];
	60	UWORD32 bytes[2];
	61	UWORD32 in[16];
	62	};
	63
	64	void MD5Init(struct MD5Context *context);
65	void MD5Update(struct MD5Context context, md5byte const buf, unsigned len);
66	void MD5Final(unsigned char digest[16], struct MD5Context *context);
67	void MD5Transform(UWORD32 buf[4], UWORD32 const in[16]);
68
69	#endif /* !MD5_H */