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MySQL 5.1: mysql/src/5.1-dbg/mysys/md5.c File Reference

mysql/src/5.1-dbg/mysys/md5.c File Reference

#include <my_global.h>
#include <m_string.h>
#include "md5.h"

Include dependency graph for md5.c:


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	MD5_memcpy(A, B, C) memcpy((char) (A),(char) (B), (C))
#define	MD5_memset(A, B, C) memset((char*) (A),(B), (C))
#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
static void MD5Transform	PROTO_LIST ((UINT4[4], unsigned char[64]))
static void Encode	PROTO_LIST ((unsigned char , UINT4 , unsigned int))
static void Decode	PROTO_LIST ((UINT4 , unsigned char , unsigned int))
void	my_MD5Init (my_MD5_CTX *context)
void	my_MD5Update (my_MD5_CTX context, unsigned char input, unsigned int inputLen)
void	my_MD5Final (unsigned char digest[16], my_MD5_CTX *context)
static void	MD5Transform (UINT4 state[4], unsigned char block[64])
static void	Encode (unsigned char output, UINT4 input, unsigned int len)
static void	Decode (UINT4 output, unsigned char input, unsigned int len)
Variables
static unsigned char	PADDING [64]

Define Documentation

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

Definition at line 92 of file md5.c.

#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); \
  }

Definition at line 104 of file md5.c.

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

Definition at line 93 of file md5.c.

#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); \
  }

Definition at line 109 of file md5.c.

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

Definition at line 94 of file md5.c.

#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); \
  }

Definition at line 114 of file md5.c.

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

Definition at line 95 of file md5.c.

#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); \
  }

Definition at line 119 of file md5.c.

#define MD5_memcpy	(	A,
		B,
		C	)	memcpy((char) (A),(char) (B), (C))

Definition at line 80 of file md5.c.

#define MD5_memset	(	A,
		B,
		C	)	memset((char*) (A),(B), (C))

Definition at line 81 of file md5.c.

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

Definition at line 99 of file md5.c.

#define S11 7

Definition at line 53 of file md5.c.

#define S12 12

Definition at line 54 of file md5.c.

#define S13 17

Definition at line 55 of file md5.c.

#define S14 22

Definition at line 56 of file md5.c.

#define S21 5

Definition at line 57 of file md5.c.

#define S22 9

Definition at line 58 of file md5.c.

#define S23 14

Definition at line 59 of file md5.c.

#define S24 20

Definition at line 60 of file md5.c.

#define S31 4

Definition at line 61 of file md5.c.

#define S32 11

Definition at line 62 of file md5.c.

#define S33 16

Definition at line 63 of file md5.c.

#define S34 23

Definition at line 64 of file md5.c.

#define S41 6

Definition at line 65 of file md5.c.

#define S42 10

Definition at line 66 of file md5.c.

#define S43 15

Definition at line 67 of file md5.c.

#define S44 21

Definition at line 68 of file md5.c.

Function Documentation

static void Decode	(	UINT4 *	output,
		unsigned char *	input,
		unsigned int	len
	)			`[static]`

Definition at line 327 of file md5.c.

00331 {
00332   unsigned int i, j;
00333 
00334   for (i = 0, j = 0; j < len; i++, j += 4)
00335  output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) |
00336    (((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24);
00337 }

static void Encode	(	unsigned char *	output,
		UINT4 *	input,
		unsigned int	len
	)			`[static]`

Definition at line 308 of file md5.c.

00312 {
00313   unsigned int i, j;
00314 
00315   for (i = 0, j = 0; j < len; i++, j += 4) {
00316  output[j] = (unsigned char)(input[i] & 0xff);
00317  output[j+1] = (unsigned char)((input[i] >> 8) & 0xff);
00318  output[j+2] = (unsigned char)((input[i] >> 16) & 0xff);
00319  output[j+3] = (unsigned char)((input[i] >> 24) & 0xff);
00320   }
00321 }

static void MD5Transform	(	UINT4	state[4],
		unsigned char	block[64]
	)			`[static]`

Definition at line 214 of file md5.c.

References Decode(), FF, GG, HH, II, MD5_memset, S11, S12, S13, S14, S21, S22, S23, S24, S31, S32, S33, S34, S41, S42, S43, S44, and x.

00217 {
00218   UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
00219 
00220   Decode (x, block, 64);
00221 
00222   /* Round 1 */
00223   FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
00224   FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
00225   FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
00226   FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
00227   FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
00228   FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
00229   FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
00230   FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
00231   FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
00232   FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
00233   FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
00234   FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
00235   FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
00236   FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
00237   FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
00238   FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
00239 
00240  /* Round 2 */
00241   GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
00242   GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
00243   GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
00244   GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
00245   GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
00246   GG (d, a, b, c, x[10], S22,  0x2441453); /* 22 */
00247   GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
00248   GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
00249   GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
00250   GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
00251   GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
00252   GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
00253   GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
00254   GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
00255   GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
00256   GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
00257 
00258   /* Round 3 */
00259   HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
00260   HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
00261   HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
00262   HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
00263   HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
00264   HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
00265   HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
00266   HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
00267   HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
00268   HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
00269   HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
00270   HH (b, c, d, a, x[ 6], S34,  0x4881d05); /* 44 */
00271   HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
00272   HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
00273   HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
00274   HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */
00275 
00276   /* Round 4 */
00277   II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
00278   II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
00279   II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
00280   II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
00281   II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
00282   II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
00283   II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
00284   II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
00285   II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
00286   II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
00287   II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
00288   II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
00289   II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
00290   II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
00291   II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
00292   II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */
00293 
00294 
00295   state[0] += a;
00296   state[1] += b;
00297   state[2] += c;
00298   state[3] += d;
00299 
00300   /* Zeroize sensitive information.
00301 */
00302   MD5_memset ((POINTER)x, 0, sizeof (x));
00303 }

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void my_MD5Final	(	unsigned char	digest[16],
		my_MD5_CTX *	context
	)

Definition at line 185 of file md5.c.

References my_MD5_CTX::count, Encode(), int(), MD5_memset, and my_MD5Update().

00188 {
00189   unsigned char bits[8];
00190   unsigned int idx, padLen;
00191 
00192   /* Save number of bits */
00193   Encode (bits, context->count, 8);
00194 
00195   /* Pad out to 56 mod 64.
00196 */
00197   idx = (unsigned int)((context->count[0] >> 3) & 0x3f);
00198   padLen = (idx < 56) ? (56 - idx) : (120 - idx);
00199   my_MD5Update (context, PADDING, padLen);
00200 
00201   /* Append length (before padding) */
00202   my_MD5Update (context, bits, 8);
00203 
00204   /* Store state in digest */
00205   Encode (digest, context->state, 16);
00206 
00207   /* Zeroize sensitive information.
00208 */
00209   MD5_memset ((POINTER)context, 0, sizeof (*context));
00210 }

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void my_MD5Init ( my_MD5_CTX * context )

Definition at line 127 of file md5.c.

References my_MD5_CTX::count, and my_MD5_CTX::state.

00128 {
00129   context->count[0] = context->count[1] = 0;
00130   /* Load magic initialization constants.
00131 */
00132   context->state[0] = 0x67452301;
00133   context->state[1] = 0xefcdab89;
00134   context->state[2] = 0x98badcfe;
00135   context->state[3] = 0x10325476;
00136 }

void my_MD5Update	(	my_MD5_CTX *	context,
		unsigned char *	input,
		unsigned int	inputLen
	)

Definition at line 143 of file md5.c.

References my_MD5_CTX::buffer, my_MD5_CTX::count, int(), MD5_memcpy, MD5Transform(), and my_MD5_CTX::state.

00147 {
00148   unsigned int i, idx, partLen;
00149 
00150   /* Compute number of bytes mod 64 */
00151   idx = (unsigned int)((context->count[0] >> 3) & 0x3F);
00152 
00153 
00154   /* Update number of bits */
00155   if ((context->count[0] += ((UINT4)inputLen << 3))
00156    < ((UINT4)inputLen << 3))
00157  context->count[1]++;
00158   context->count[1] += ((UINT4)inputLen >> 29);
00159 
00160   partLen = 64 - idx;
00161 
00162   /* Transform as many times as possible.
00163 */
00164   if (inputLen >= partLen) {
00165  MD5_memcpy((POINTER)&context->buffer[idx], (POINTER)input, partLen);
00166  MD5Transform(context->state, context->buffer);
00167 
00168  for (i = partLen; i + 63 < inputLen; i += 64)
00169    MD5Transform (context->state, &input[i]);
00170 
00171  idx = 0;
00172   }
00173   else
00174  i = 0;
00175 
00176   /* Buffer remaining input */
00177   MD5_memcpy((POINTER)&context->buffer[idx], (POINTER)&input[i],
00178              inputLen-i);
00179 }

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static void Decode PROTO_LIST ( (UINT4 *, unsigned char *, unsigned int) ) [static]

static void Encode PROTO_LIST ( (unsigned char *, UINT4 *, unsigned int) ) [static]

static void MD5Transform PROTO_LIST ( (UINT4[4], unsigned char[64]) ) [static]

Variable Documentation

unsigned char PADDING[64] [static]

Initial value:

 {
  0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}

Definition at line 84 of file md5.c.

Generated on Sat Sep 9 01:58:10 2006 for MySQL 5.1 by

1.4.7

The world's most popular open source database

mysql/src/5.1-dbg/mysys/md5.c File Reference

Defines

Functions

Variables

Define Documentation

Function Documentation

Variable Documentation