ermyth/include/md5.h

/**
 * md5.h: Message Digest 5 structures
 *
 * Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team
 * Rights to this code are as documented in COPYING.
 *
 * $Id: md5.h,v 1.4 2007-09-16 18:54:42 pippijn Exp $
 */

#ifndef MD5_H
#define MD5_H

/*  The following tests optimise behaviour on little-endian
    machines, where there is no need to reverse the byte order
    of 32 bit words in the MD5 computation.  By default,
    HIGHFIRST is defined, which indicates we're running on a
    big-endian (most significant byte first) machine, on which
    the byteReverse function in md5.c must be invoked. However,
    byteReverse is coded in such a way that it is an identity
    function when run on a little-endian machine, so calling it
    on such a platform causes no harm apart from wasting time. 
    If the platform is known to be little-endian, we speed
    things up by undefining HIGHFIRST, which defines
    byteReverse as a null macro.  Doing things in this manner
    insures we work on new platforms regardless of their byte
    order.  */

#define HIGHFIRST

#ifdef __i386__
#undef HIGHFIRST
#endif

#include <inttypes.h>

struct MD5Context
{
  uint32_t buf[4];
  uint32_t bits[2];
  unsigned char in[64];
};

E void MD5Init (MD5Context *ctx);
E void MD5Update (MD5Context *ctx, unsigned char const *buf, unsigned len);
E void MD5Final (unsigned char digest[16], MD5Context *ctx);
E void MD5Transform (uint32_t buf[4], uint32_t in[16]);

/*
 * This is needed to make RSAREF happy on some MS-DOS compilers.
 */
typedef struct MD5Context MD5_CTX;

/*  Define CHECK_HARDWARE_PROPERTIES to have main,c verify
    byte order and uint32 settings.  */
#define CHECK_HARDWARE_PROPERTIES

#endif /* !MD5_H */
Revision:	1.5
Committed:	Sat Sep 22 14:27:26 2007 UTC (16 years, 7 months ago) by pippijn
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.4:	+1 -1 lines
State:	*FILE REMOVED*
Log Message:	split up ermyth into ermyth-modules, libermyth (currently just ermyth-util) and ermyth-core
#	Content
1	/**
2	* md5.h: Message Digest 5 structures
3	*
4	* Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team
5	* Rights to this code are as documented in COPYING.
6	*
7	* $Id: md5.h,v 1.4 2007-09-16 18:54:42 pippijn Exp $
8	*/
9
10	#ifndef MD5_H
11	#define MD5_H
12
13	/* The following tests optimise behaviour on little-endian
14	machines, where there is no need to reverse the byte order
15	of 32 bit words in the MD5 computation. By default,
16	HIGHFIRST is defined, which indicates we're running on a
17	big-endian (most significant byte first) machine, on which
18	the byteReverse function in md5.c must be invoked. However,
19	byteReverse is coded in such a way that it is an identity
20	function when run on a little-endian machine, so calling it
21	on such a platform causes no harm apart from wasting time.
22	If the platform is known to be little-endian, we speed
23	things up by undefining HIGHFIRST, which defines
24	byteReverse as a null macro. Doing things in this manner
25	insures we work on new platforms regardless of their byte
26	order. */
27
28	#define HIGHFIRST
29
30	#ifdef __i386__
31	#undef HIGHFIRST
32	#endif
33
34	#include <inttypes.h>
35
36	struct MD5Context
37	{
38	uint32_t buf[4];
39	uint32_t bits[2];
40	unsigned char in[64];
41	};
42
43	E void MD5Init (MD5Context *ctx);
44	E void MD5Update (MD5Context ctx, unsigned char const buf, unsigned len);
45	E void MD5Final (unsigned char digest[16], MD5Context *ctx);
46	E void MD5Transform (uint32_t buf[4], uint32_t in[16]);
47
48	/*
49	* This is needed to make RSAREF happy on some MS-DOS compilers.
50	*/
51	typedef struct MD5Context MD5_CTX;
52
53	/* Define CHECK_HARDWARE_PROPERTIES to have main,c verify
54	byte order and uint32 settings. */
55	#define CHECK_HARDWARE_PROPERTIES
56
57	#endif /* !MD5_H */