[Python-checkins] CVS: python/dist/src/Modules md5.h,2.5,2.6 md5c.c,2.3,2.4
Fred L. Drake
python-dev@python.org
Sun, 9 Jul 2000 21:21:00 -0700
Update of /cvsroot/python/python/dist/src/Modules
In directory slayer.i.sourceforge.net:/tmp/cvs-serv16446
Modified Files:
md5.h md5c.c
Log Message:
Guido said include these in the Great ANSI-fication, so here they are!
Index: md5.h
===================================================================
RCS file: /cvsroot/python/python/dist/src/Modules/md5.h,v
retrieving revision 2.5
retrieving revision 2.6
diff -C2 -r2.5 -r2.6
*** md5.h 1996/07/21 02:34:55 2.5
--- md5.h 2000/07/10 04:20:57 2.6
***************
*** 28,43 ****
*/
- /* PROTOTYPES should be set to one if and only if the compiler supports
- function argument prototyping.
- The following makes PROTOTYPES default to 0 if it has not already
- been defined with C compiler flags.
- */
- #ifdef HAVE_PROTOTYPES
- #define PROTOTYPES 1
- #endif
- #ifndef PROTOTYPES
- #define PROTOTYPES 0
- #endif
-
/* POINTER defines a generic pointer type */
typedef unsigned char *POINTER;
--- 28,31 ----
***************
*** 63,82 ****
#endif
- /* PROTO_LIST is defined depending on how PROTOTYPES is defined above.
- If using PROTOTYPES, then PROTO_LIST returns the list, otherwise it
- returns an empty list.
- */
- #if PROTOTYPES
- #define PROTO_LIST(list) list
- #else
- #define PROTO_LIST(list) ()
- #endif
/* ========== End global.h; continue md5.h ========== */
/* MD5 context. */
typedef struct {
! UINT4 state[4]; /* state (ABCD) */
! UINT4 count[2]; /* number of bits, modulo 2^64 (lsb first) */
! unsigned char buffer[64]; /* input buffer */
} MD5_CTX;
--- 51,61 ----
#endif
/* ========== End global.h; continue md5.h ========== */
/* MD5 context. */
typedef struct {
! UINT4 state[4]; /* state (ABCD) */
! UINT4 count[2]; /* number of bits, modulo 2^64 (lsb first) */
! unsigned char buffer[64]; /* input buffer */
} MD5_CTX;
***************
*** 88,93 ****
#define MD5Final _Py_MD5Final
! void MD5Init PROTO_LIST ((MD5_CTX *));
! void MD5Update PROTO_LIST
! ((MD5_CTX *, unsigned char *, unsigned int));
! void MD5Final PROTO_LIST ((unsigned char [16], MD5_CTX *));
--- 67,71 ----
#define MD5Final _Py_MD5Final
! void MD5Init(MD5_CTX *);
! void MD5Update(MD5_CTX *, unsigned char *, unsigned int);
! void MD5Final(unsigned char [16], MD5_CTX *);
Index: md5c.c
===================================================================
RCS file: /cvsroot/python/python/dist/src/Modules/md5c.c,v
retrieving revision 2.3
retrieving revision 2.4
diff -C2 -r2.3 -r2.4
*** md5c.c 1996/08/19 22:03:48 2.3
--- md5c.c 2000/07/10 04:20:57 2.4
***************
*** 27,32 ****
#include "md5.h"
! /* Constants for MD5Transform routine.
! */
#define S11 7
--- 27,31 ----
#include "md5.h"
! /* Constants for MD5Transform routine. */
#define S11 7
***************
*** 47,66 ****
#define S44 21
! 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));
! static void MD5_memcpy PROTO_LIST ((POINTER, POINTER, unsigned int));
! static void MD5_memset PROTO_LIST ((POINTER, int, unsigned int));
static unsigned char PADDING[64] = {
! 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
};
! /* F, G, H and I are basic MD5 functions.
! */
#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
--- 46,62 ----
#define S44 21
! static void MD5Transform(UINT4[4], unsigned char[64]);
! static void Encode(unsigned char *, UINT4 *, unsigned int);
! static void Decode(UINT4 *, unsigned char *, unsigned int);
! static void MD5_memcpy(POINTER, POINTER, unsigned int);
! static void MD5_memset(POINTER, int, unsigned int);
static unsigned char PADDING[64] = {
! 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
};
! /* F, G, H and I are basic MD5 functions. */
#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
***************
*** 68,335 ****
#define I(x, y, z) ((y) ^ ((x) | (~z)))
! /* ROTATE_LEFT rotates x left n bits.
! */
#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
! Rotation is separate from addition to prevent recomputation.
*/
#define FF(a, b, c, d, x, s, ac) { \
! (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \
! (a) = ROTATE_LEFT ((a), (s)); \
! (a) += (b); \
! }
#define GG(a, b, c, d, x, s, ac) { \
! (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \
! (a) = ROTATE_LEFT ((a), (s)); \
! (a) += (b); \
! }
#define HH(a, b, c, d, x, s, ac) { \
! (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \
! (a) = ROTATE_LEFT ((a), (s)); \
! (a) += (b); \
! }
#define II(a, b, c, d, x, s, ac) { \
! (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \
! (a) = ROTATE_LEFT ((a), (s)); \
! (a) += (b); \
! }
! /* MD5 initialization. Begins an MD5 operation, writing a new context.
! */
! void MD5Init (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->state[3] = 0x10325476;
}
/* MD5 block update operation. Continues an MD5 message-digest
! operation, processing another message block, and updating the
! context.
*/
! void MD5Update (context, input, inputLen)
! 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);
! /* Update number of bits */
! if ((context->count[0] += ((UINT4)inputLen << 3))
! < ((UINT4)inputLen << 3))
! context->count[1]++;
! context->count[1] += ((UINT4)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);
!
! for (i = partLen; i + 63 < inputLen; i += 64)
! MD5Transform (context->state, &input[i]);
!
! index = 0;
! }
! else
! i = 0;
!
! /* Buffer remaining input */
! MD5_memcpy
! ((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 bits[8];
! unsigned int index, padLen;
! /* Save number of bits */
! Encode (bits, context->count, 8);
! /* Pad out to 56 mod 64.
! */
! index = (unsigned int)((context->count[0] >> 3) & 0x3f);
! padLen = (index < 56) ? (56 - index) : (120 - index);
! MD5Update (context, PADDING, padLen);
!
! /* Append length (before padding) */
! MD5Update (context, bits, 8);
!
! /* Store state in digest */
! Encode (digest, context->state, 16);
!
! /* Zeroize sensitive information.
! */
! MD5_memset ((POINTER)context, 0, sizeof (*context));
}
! /* MD5 basic transformation. Transforms state based on block.
! */
! static void MD5Transform (state, block)
! UINT4 state[4];
! unsigned char block[64];
{
! UINT4 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 */
!
! /* 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 */
!
! /* 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 */
!
! state[0] += a;
! state[1] += b;
! state[2] += c;
! state[3] += d;
!
! /* Zeroize sensitive information.
! */
! MD5_memset ((POINTER)x, 0, sizeof (x));
}
/* Encodes input (UINT4) into output (unsigned char). Assumes len is
! a multiple of 4.
*/
! static void Encode (output, input, len)
! unsigned char *output;
! UINT4 *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);
! }
}
/* Decodes input (unsigned char) into output (UINT4). Assumes len is
! a multiple of 4.
*/
! static void Decode (output, input, len)
! UINT4 *output;
! unsigned char *input;
! unsigned int len;
{
! unsigned int i, j;
! for (i = 0, j = 0; j < len; i++, j += 4)
! output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) |
! (((UINT4)input[j+2]) << 16) | (((UINT4)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;
{
! unsigned int i;
! for (i = 0; i < len; 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;
{
! unsigned int i;
! for (i = 0; i < len; i++)
! ((char *)output)[i] = (char)value;
}
--- 64,314 ----
#define I(x, y, z) ((y) ^ ((x) | (~z)))
! /* ROTATE_LEFT rotates x left n bits. */
#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
! Rotation is separate from addition to prevent recomputation.
*/
#define FF(a, b, c, d, x, s, ac) { \
! (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \
! (a) = ROTATE_LEFT ((a), (s)); \
! (a) += (b); \
! }
#define GG(a, b, c, d, x, s, ac) { \
! (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \
! (a) = ROTATE_LEFT ((a), (s)); \
! (a) += (b); \
! }
#define HH(a, b, c, d, x, s, ac) { \
! (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \
! (a) = ROTATE_LEFT ((a), (s)); \
! (a) += (b); \
! }
#define II(a, b, c, d, x, s, ac) { \
! (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \
! (a) = ROTATE_LEFT ((a), (s)); \
! (a) += (b); \
! }
!
! /* MD5 initialization. Begins an MD5 operation, writing a new context. */
! void
! MD5Init(MD5_CTX *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->state[3] = 0x10325476;
}
+
/* MD5 block update operation. Continues an MD5 message-digest
! operation, processing another message block, and updating the
! context.
*/
! void
! MD5Update(MD5_CTX *context, unsigned char *input, unsigned int inputLen)
{
! unsigned int i, index, partLen;
! /* Compute number of bytes mod 64 */
! index = (unsigned int)((context->count[0] >> 3) & 0x3F);
! /* Update number of bits */
! if ((context->count[0] += ((UINT4)inputLen << 3))
! < ((UINT4)inputLen << 3))
! context->count[1]++;
! context->count[1] += ((UINT4)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);
!
! for (i = partLen; i + 63 < inputLen; i += 64)
! MD5Transform(context->state, &input[i]);
!
! index = 0;
! }
! else
! i = 0;
!
! /* Buffer remaining input */
! MD5_memcpy((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(unsigned char digest[16], MD5_CTX *context)
{
! unsigned char bits[8];
! unsigned int index, padLen;
!
! /* Save number of bits */
! Encode (bits, context->count, 8);
!
! /* Pad out to 56 mod 64. */
! index = (unsigned int)((context->count[0] >> 3) & 0x3f);
! padLen = (index < 56) ? (56 - index) : (120 - index);
! MD5Update(context, PADDING, padLen);
!
! /* Append length (before padding) */
! MD5Update(context, bits, 8);
! /* Store state in digest */
! Encode(digest, context->state, 16);
! /* Zeroize sensitive information. */
! MD5_memset((POINTER)context, 0, sizeof (*context));
}
!
! /* MD5 basic transformation. Transforms state based on block. */
! static void
! MD5Transform(UINT4 state[4], unsigned char block[64])
{
! UINT4 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 */
!
! /* 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 */
!
! /* 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 */
!
! state[0] += a;
! state[1] += b;
! state[2] += c;
! state[3] += d;
!
! /* Zeroize sensitive information. */
! MD5_memset((POINTER)x, 0, sizeof (x));
}
+
/* Encodes input (UINT4) into output (unsigned char). Assumes len is
! a multiple of 4.
*/
! static void
! Encode(unsigned char *output, UINT4 *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);
! }
}
+
/* Decodes input (unsigned char) into output (UINT4). Assumes len is
! a multiple of 4.
*/
! static void
! Decode(UINT4 *output, unsigned char *input, unsigned int len)
{
! unsigned int i, j;
! for (i = 0, j = 0; j < len; i++, j += 4) {
! output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) |
! (((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24);
! }
}
! /* Note: Replace "for loop" with standard memcpy if possible. */
! static void
! MD5_memcpy(POINTER output, POINTER input, unsigned int len)
{
! unsigned int i;
! for (i = 0; i < len; i++)
! output[i] = input[i];
}
!
! /* Note: Replace "for loop" with standard memset if possible. */
! static void
! MD5_memset(POINTER output, int value, unsigned int len)
{
! unsigned int i;
! for (i = 0; i < len; i++)
! ((char *)output)[i] = (char)value;
}