md5.cpp File Reference

#include "md5.h"
#include <memory.h>

Defines
#define	S11   7
#define	S12   12
#define	S13   17
#define	S14   22
#define	S21   5
#define	S22   9
#define	S23   14
#define	S24   20
#define	S31   4
#define	S32   11
#define	S33   16
#define	S34   23
#define	S41   6
#define	S42   10
#define	S43   15
#define	S44   21
#define	F(x, y, z)   (((x) & (y)) | ((~x) & (z)))
#define	G(x, y, z)   (((x) & (z)) | ((y) & (~z)))
#define	H(x, y, z)   ((x) ^ (y) ^ (z))
#define	I(x, y, z)   ((y) ^ ((x) | (~z)))
#define	ROTATE_LEFT(x, n)   (((x) << (n)) | ((x) >> (32-(n))))
#define	FF(a, b, c, d, x, s, ac)
#define	GG(a, b, c, d, x, s, ac)
#define	HH(a, b, c, d, x, s, ac)
#define	II(a, b, c, d, x, s, ac)
Functions
void	MD5Init (MD5_CTX *context)
void	MD5Update (MD5_CTX *context, unsigned char *input, unsigned int inputLen)
void	MD5Final (unsigned char *digest, MD5_CTX *context)

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Detailed Description

md5.cpp - RSA Data Security, Inc., MD5 message-digest algorithm

Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All rights reserved.

License to copy and use this software is granted provided that it is identified as the "RSA Data Security, Inc. MD5 Message-Digest Algorithm" in all material mentioning or referencing this software or this function.

License is also granted to make and use derivative works provided that such works are identified as "derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm" in all material mentioning or referencing the derived work.

RSA Data Security, Inc. makes no representations concerning either the merchantability of this software or the suitability of this software for any particular purpose. It is provided "as is" without express or implied warranty of any kind.

These notices must be retained in any copies of any part of this documentation and/or software.

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Define Documentation

#define F (  x, y, z   )     (((x) & (y)) | ((~x) & (z)))

#define FF (  a, b, c, d, x, s, ac   )

Value: { \ (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ }

#define G (  x, y, z   )     (((x) & (z)) | ((y) & (~z)))

#define GG (  a, b, c, d, x, s, ac   )

Value: { \ (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ }

#define H (  x, y, z   )     ((x) ^ (y) ^ (z))

#define HH (  a, b, c, d, x, s, ac   )

Value: { \ (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ }

#define I (  x, y, z   )     ((y) ^ ((x) | (~z)))

#define II (  a, b, c, d, x, s, ac   )

Value: { \ (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ }

#define ROTATE_LEFT (  x, n   )     (((x) << (n)) | ((x) >> (32-(n))))

ROTATE_LEFT rotates x left n bits.

#define S11   7

#define S12   12

#define S13   17

#define S14   22

#define S21   5

#define S22   9

#define S23   14

#define S24   20

#define S31   4

#define S32   11

#define S33   16

#define S34   23

#define S41   6

#define S42   10

#define S43   15

#define S44   21

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Function Documentation

void MD5Final (  unsigned char *  digest, MD5_CTX *  context )

MD5 finalization. Ends an MD5 message-digest operation, writing the the message digest and zeroizing the context.

void MD5Init (  MD5_CTX *  context  )

MD5 initialization. Begins an MD5 operation, writing a new context.

void MD5Update (  MD5_CTX *  context, unsigned char *  input, unsigned int  inputLen )

MD5 block update operation. Continues an MD5 message-digest operation, processing another message block, and updating the context.

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