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/*
This file is adapted from a program in this page:
http://www.fourmilab.ch/md5/
The original source code does not work on 64-bit machines due to the
wrong typedef "uint32". I also added prototypes.
-lh3
*/
#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
#if __LITTLE_ENDIAN__ != 0
#undef HIGHFIRST
#endif
#include <stdint.h>
struct MD5Context {
uint32_t buf[4];
uint32_t bits[2];
unsigned char in[64];
};
void MD5Init(struct MD5Context *ctx);
void MD5Update(struct MD5Context *ctx, unsigned char *buf, unsigned len);
void MD5Final(unsigned char digest[16], struct MD5Context *ctx);
/*
* 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_t settings. */
#define CHECK_HARDWARE_PROPERTIES
#endif /* !MD5_H */
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