TAO_AV: md5c.cpp File Reference

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

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

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

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

00298 {
00299   unsigned int i, j;
00300 
00301   for (i = 0, j = 0; j < len; i++, j += 4)
00302  output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) |
00303    (((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24);
00304 }

00283 {
00284   unsigned int i, j;
00285 
00286   for (i = 0, j = 0; j < len; i++, j += 4) {
00287  output[j] = (unsigned char)(input[i] & 0xff);
00288  output[j+1] = (unsigned char)((input[i] >> 8) & 0xff);
00289  output[j+2] = (unsigned char)((input[i] >> 16) & 0xff);
00290  output[j+3] = (unsigned char)((input[i] >> 24) & 0xff);
00291   }
00292 }

00310 {
00311   unsigned int i;
00312 
00313   for (i = 0; i < len; i++)
00314 
00315  output[i] = input[i];
00316 }

00321 {
00322   unsigned int i;
00323 
00324   for (i = 0; i < len; i++)
00325  ((char *)output)[i] = (char)value;
00326 }

00163 {
00164   unsigned char bits[8];
00165   unsigned int index, padLen;
00166 
00167   /* Save number of bits */
00168   Encode (bits, context->count, 8);
00169 
00170   /* Pad out to 56 mod 64.
00171 */
00172   index = (unsigned int)((context->count[0] >> 3) & 0x3f);
00173   padLen = (index < 56) ? (56 - index) : (120 - index);
00174   MD5Update (context, PADDING, padLen);
00175 
00176   /* Append length (before padding) */
00177   MD5Update (context, bits, 8);
00178 
00179   /* Store state in digest */
00180   Encode (digest, context->state, 16);
00181 
00182   /* Zeroize sensitive information.
00183 */
00184   MD5_memset ((POINTER)context, 0, sizeof (*context));
00185 }

00108 {
00109   context->count[0] = context->count[1] = 0;
00110   /* Load magic initialization constants.
00111 */
00112   context->state[0] = 0x67452301;
00113   context->state[1] = 0xefcdab89;
00114   context->state[2] = 0x98badcfe;
00115   context->state[3] = 0x10325476;
00116 }

00190 {
00191   UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
00192 
00193   Decode (x, block, 64);
00194 
00195   /* Round 1 */
00196   FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
00197   FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
00198   FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
00199   FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
00200   FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
00201   FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
00202   FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
00203   FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
00204   FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
00205   FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
00206   FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
00207   FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
00208   FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
00209   FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
00210   FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
00211   FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
00212 
00213  /* Round 2 */
00214   GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
00215   GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
00216   GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
00217   GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
00218   GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
00219   GG (d, a, b, c, x[10], S22,  0x2441453); /* 22 */
00220   GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
00221   GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
00222   GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
00223   GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
00224   GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
00225 
00226   GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
00227   GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
00228   GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
00229   GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
00230   GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
00231 
00232   /* Round 3 */
00233   HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
00234   HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
00235   HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
00236   HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
00237   HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
00238   HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
00239   HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
00240   HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
00241   HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
00242   HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
00243   HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
00244   HH (b, c, d, a, x[ 6], S34,  0x4881d05); /* 44 */
00245   HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
00246   HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
00247   HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
00248   HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */
00249 
00250   /* Round 4 */
00251   II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
00252   II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
00253   II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
00254   II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
00255   II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
00256   II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
00257   II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
00258   II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
00259   II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
00260   II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
00261   II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
00262   II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
00263   II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
00264   II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
00265   II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
00266   II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */
00267 
00268   state[0] += a;
00269   state[1] += b;
00270   state[2] += c;
00271   state[3] += d;
00272 
00273   /* Zeroize sensitive information.
00274 
00275 */
00276   MD5_memset ((POINTER)x, 0, sizeof (x));
00277 }

00123 {
00124   unsigned int i, index, partLen;
00125 
00126   /* Compute number of bytes mod 64 */
00127   index = (unsigned int)((context->count[0] >> 3) & 0x3F);
00128 
00129   /* Update number of bits */
00130   if ((context->count[0] += ((UINT4)inputLen << 3))
00131 
00132    < ((UINT4)inputLen << 3))
00133  context->count[1]++;
00134   context->count[1] += ((UINT4)inputLen >> 29);
00135 
00136   partLen = 64 - index;
00137 
00138   /* Transform as many times as possible.
00139 */
00140   if (inputLen >= partLen) {
00141  MD5_memcpy
00142    ((POINTER)&context->buffer[index], (POINTER)input, partLen);
00143  MD5Transform (context->state, context->buffer);
00144 
00145  for (i = partLen; i + 63 < inputLen; i += 64)
00146    MD5Transform (context->state, &input[i]);
00147 
00148  index = 0;
00149   }
00150   else
00151  i = 0;
00152 
00153   /* Buffer remaining input */
00154   MD5_memcpy
00155  ((POINTER)&context->buffer[index], (POINTER)&input[i],
00156   inputLen-i);
00157 }

 {
  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
}


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	MD5Transform (UINT4[4], unsigned char[64])
void	Encode (unsigned char , UINT4 , unsigned int)
void	Decode (UINT4 , unsigned char , unsigned int)
void	MD5_memcpy (POINTER, POINTER, unsigned int)
void	MD5_memset (POINTER, int, unsigned int)
void	MD5Init (MD5_CTX *context)
void	MD5Update (MD5_CTX context, unsigned char input, unsigned int inputLen)
void	MD5Final (unsigned char digest[16], MD5_CTX *context)
Variables
unsigned char	PADDING [64]

md5c.cpp File Reference

Defines

Functions

Variables

Define Documentation

Function Documentation

Variable Documentation