#define S43 15
#define S44 21
-static void MD5Transform (uint32_t [4], unsigned char [64]);
+static void MD5Transform (uint32_t[4], unsigned char[64]);
static void Encode (unsigned char *, uint32_t *, unsigned int);
static void Decode (uint32_t *, unsigned char *, unsigned int);
static void MD5_memcpy (POINTER, POINTER, unsigned int);
/* MD5 initialization. Begins an MD5 operation, writing a new context.
*/
void MD5Init (context)
-MD5_CTX *context; /* context */
+ MD5_CTX *context; /* context */
{
context->count[0] = context->count[1] = 0;
/* Load magic initialization constants.
-*/
+ */
context->state[0] = 0x67452301;
context->state[1] = 0xefcdab89;
context->state[2] = 0x98badcfe;
context.
*/
void MD5Update (context, input, inputLen)
-MD5_CTX *context; /* context */
-unsigned char *input; /* input block */
-unsigned int inputLen; /* length of input block */
+ MD5_CTX *context; /* context */
+ unsigned char *input; /* input block */
+ unsigned int inputLen; /* length of input block */
{
unsigned int i, index, partLen;
/* Compute number of bytes mod 64 */
- index = (unsigned int)((context->count[0] >> 3) & 0x3F);
+ index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
/* Update number of bits */
- if ((context->count[0] += ((uint32_t)inputLen << 3))
- < ((uint32_t)inputLen << 3))
- context->count[1]++;
- context->count[1] += ((uint32_t)inputLen >> 29);
+ if ((context->count[0] += ((uint32_t) inputLen << 3))
+ < ((uint32_t) inputLen << 3))
+ context->count[1]++;
+ context->count[1] += ((uint32_t) inputLen >> 29);
partLen = 64 - index;
/* Transform as many times as possible.
-*/
+ */
if (inputLen >= partLen) {
- MD5_memcpy
- ((POINTER)&context->buffer[index], (POINTER)input, partLen);
- MD5Transform (context->state, context->buffer);
+ MD5_memcpy ((POINTER) & context->buffer[index], (POINTER) input, partLen);
+ MD5Transform (context->state, context->buffer);
- for (i = partLen; i + 63 < inputLen; i += 64)
- MD5Transform (context->state, &input[i]);
+ for (i = partLen; i + 63 < inputLen; i += 64)
+ MD5Transform (context->state, &input[i]);
- index = 0;
+ index = 0;
}
else
- i = 0;
+ i = 0;
/* Buffer remaining input */
MD5_memcpy
- ((POINTER)&context->buffer[index], (POINTER)&input[i],
- inputLen-i);
+ ((POINTER) & context->buffer[index], (POINTER) & input[i], inputLen - i);
}
/* MD5 finalization. Ends an MD5 message-digest operation, writing the
the message digest and zeroizing the context.
*/
void MD5Final (digest, context)
-unsigned char digest[16]; /* message digest */
-MD5_CTX *context; /* context */
+ unsigned char digest[16]; /* message digest */
+ MD5_CTX *context; /* context */
{
unsigned char bits[8];
unsigned int index, padLen;
Encode (bits, context->count, 8);
/* Pad out to 56 mod 64.
-*/
- index = (unsigned int)((context->count[0] >> 3) & 0x3f);
+ */
+ index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
padLen = (index < 56) ? (56 - index) : (120 - index);
MD5Update (context, PADDING, padLen);
Encode (digest, context->state, 16);
/* Zeroize sensitive information.
-*/
- MD5_memset ((POINTER)context, 0, sizeof (*context));
+ */
+ MD5_memset ((POINTER) context, 0, sizeof (*context));
}
/* MD5 basic transformation. Transforms state based on block.
*/
static void MD5Transform (state, block)
-uint32_t state[4];
-unsigned char block[64];
+ uint32_t state[4];
+ unsigned char block[64];
{
uint32_t a = state[0], b = state[1], c = state[2], d = state[3], x[16];
Decode (x, block, 64);
/* Round 1 */
- FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
- FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
- FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
- FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
- FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
- FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
- FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
- FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
- FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
- FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
- FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
- FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
- FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
- FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
- FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
- FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
-
- /* Round 2 */
- GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
- GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
- GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
- GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
- GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
- GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */
- GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
- GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
- GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
- GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
- GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
- GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
- GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
- GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
- GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
- GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
+ FF (a, b, c, d, x[0], S11, 0xd76aa478); /* 1 */
+ FF (d, a, b, c, x[1], S12, 0xe8c7b756); /* 2 */
+ FF (c, d, a, b, x[2], S13, 0x242070db); /* 3 */
+ FF (b, c, d, a, x[3], S14, 0xc1bdceee); /* 4 */
+ FF (a, b, c, d, x[4], S11, 0xf57c0faf); /* 5 */
+ FF (d, a, b, c, x[5], S12, 0x4787c62a); /* 6 */
+ FF (c, d, a, b, x[6], S13, 0xa8304613); /* 7 */
+ FF (b, c, d, a, x[7], S14, 0xfd469501); /* 8 */
+ FF (a, b, c, d, x[8], S11, 0x698098d8); /* 9 */
+ FF (d, a, b, c, x[9], S12, 0x8b44f7af); /* 10 */
+ FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
+ FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
+ FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
+ FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
+ FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
+ FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
+
+ /* Round 2 */
+ GG (a, b, c, d, x[1], S21, 0xf61e2562); /* 17 */
+ GG (d, a, b, c, x[6], S22, 0xc040b340); /* 18 */
+ GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
+ GG (b, c, d, a, x[0], S24, 0xe9b6c7aa); /* 20 */
+ GG (a, b, c, d, x[5], S21, 0xd62f105d); /* 21 */
+ GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */
+ GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
+ GG (b, c, d, a, x[4], S24, 0xe7d3fbc8); /* 24 */
+ GG (a, b, c, d, x[9], S21, 0x21e1cde6); /* 25 */
+ GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
+ GG (c, d, a, b, x[3], S23, 0xf4d50d87); /* 27 */
+ GG (b, c, d, a, x[8], S24, 0x455a14ed); /* 28 */
+ GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
+ GG (d, a, b, c, x[2], S22, 0xfcefa3f8); /* 30 */
+ GG (c, d, a, b, x[7], S23, 0x676f02d9); /* 31 */
+ GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
/* Round 3 */
- HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
- HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
- HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
- HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
- HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
- HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
- HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
- HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
- HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
- HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
- HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
- HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */
- HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
- HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
- HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
- HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */
+ HH (a, b, c, d, x[5], S31, 0xfffa3942); /* 33 */
+ HH (d, a, b, c, x[8], S32, 0x8771f681); /* 34 */
+ HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
+ HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
+ HH (a, b, c, d, x[1], S31, 0xa4beea44); /* 37 */
+ HH (d, a, b, c, x[4], S32, 0x4bdecfa9); /* 38 */
+ HH (c, d, a, b, x[7], S33, 0xf6bb4b60); /* 39 */
+ HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
+ HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
+ HH (d, a, b, c, x[0], S32, 0xeaa127fa); /* 42 */
+ HH (c, d, a, b, x[3], S33, 0xd4ef3085); /* 43 */
+ HH (b, c, d, a, x[6], S34, 0x4881d05); /* 44 */
+ HH (a, b, c, d, x[9], S31, 0xd9d4d039); /* 45 */
+ HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
+ HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
+ HH (b, c, d, a, x[2], S34, 0xc4ac5665); /* 48 */
/* Round 4 */
- II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
- II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
- II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
- II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
- II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
- II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
- II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
- II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
- II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
- II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
- II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
- II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
- II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
- II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
- II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
- II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */
+ II (a, b, c, d, x[0], S41, 0xf4292244); /* 49 */
+ II (d, a, b, c, x[7], S42, 0x432aff97); /* 50 */
+ II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
+ II (b, c, d, a, x[5], S44, 0xfc93a039); /* 52 */
+ II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
+ II (d, a, b, c, x[3], S42, 0x8f0ccc92); /* 54 */
+ II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
+ II (b, c, d, a, x[1], S44, 0x85845dd1); /* 56 */
+ II (a, b, c, d, x[8], S41, 0x6fa87e4f); /* 57 */
+ II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
+ II (c, d, a, b, x[6], S43, 0xa3014314); /* 59 */
+ II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
+ II (a, b, c, d, x[4], S41, 0xf7537e82); /* 61 */
+ II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
+ II (c, d, a, b, x[2], S43, 0x2ad7d2bb); /* 63 */
+ II (b, c, d, a, x[9], S44, 0xeb86d391); /* 64 */
state[0] += a;
state[1] += b;
state[3] += d;
/* Zeroize sensitive information. */
- MD5_memset ((POINTER)x, 0, sizeof (x));
+ MD5_memset ((POINTER) x, 0, sizeof (x));
}
/* Encodes input (uint32_t) into output (unsigned char). Assumes len is
a multiple of 4.
*/
static void Encode (output, input, len)
-unsigned char *output;
-uint32_t *input;
-unsigned int len;
+ unsigned char *output;
+ uint32_t *input;
+ unsigned int len;
{
unsigned int i, j;
for (i = 0, j = 0; j < len; i++, j += 4) {
- output[j] = (unsigned char)(input[i] & 0xff);
- output[j+1] = (unsigned char)((input[i] >> 8) & 0xff);
- output[j+2] = (unsigned char)((input[i] >> 16) & 0xff);
- output[j+3] = (unsigned char)((input[i] >> 24) & 0xff);
+ output[j] = (unsigned char) (input[i] & 0xff);
+ output[j + 1] = (unsigned char) ((input[i] >> 8) & 0xff);
+ output[j + 2] = (unsigned char) ((input[i] >> 16) & 0xff);
+ output[j + 3] = (unsigned char) ((input[i] >> 24) & 0xff);
}
}
a multiple of 4.
*/
static void Decode (output, input, len)
-uint32_t *output;
-unsigned char *input;
-unsigned int len;
+ uint32_t *output;
+ unsigned char *input;
+ unsigned int len;
{
unsigned int i, j;
for (i = 0, j = 0; j < len; i++, j += 4)
- output[i] = ((uint32_t)input[j]) | (((uint32_t)input[j+1]) << 8) |
- (((uint32_t)input[j+2]) << 16) | (((uint32_t)input[j+3]) << 24);
+ output[i] = ((uint32_t) input[j]) | (((uint32_t) input[j + 1]) << 8) |
+ (((uint32_t) input[j + 2]) << 16) | (((uint32_t) input[j + 3]) << 24);
}
/* Note: Replace "for loop" with standard memcpy if possible.
*/
static void MD5_memcpy (output, input, len)
-POINTER output;
-POINTER input;
-unsigned int len;
+ POINTER output;
+ POINTER input;
+ unsigned int len;
{
unsigned int i;
for (i = 0; i < len; i++)
- output[i] = input[i];
+ output[i] = input[i];
}
/* Note: Replace "for loop" with standard memset if possible.
*/
static void MD5_memset (output, value, len)
-POINTER output;
-int value;
-unsigned int len;
+ POINTER output;
+ int value;
+ unsigned int len;
{
unsigned int i;
for (i = 0; i < len; i++)
- ((char *)output)[i] = (char)value;
+ ((char *) output)[i] = (char) value;
}