|
|
#include "global.h"
/ W# J, j! [; S+ W
#include "md5.h"
! p9 B* c, P3 i9 b* Z* h7 }5 Y/ g
3 e" u! X5 y0 S, {, H* s/* Constants for MD5Transform routine.
*/
# A/ Y. n2 e* E0 E* K
/ \& L" `4 L6 i9 [- w
* a( D1 [( X1 `; @- h. s#define S11 7
7 X" d7 L m! q1 A9 V
#define S12 12
5 b; a* j) \9 _8 }
#define S13 17
. i8 F0 W' U: A2 x! o#define S14 22
& q) L- w! q$ I5 q/ \/ i! O
#define S21 5
& ^9 T }! i" ^) B
#define S22 9
1 Y6 E, Z! F5 E( O H' n! J: n
#define S23 14
, ]- ^6 q' ]" D9 n, X# P#define S24 20
3 ]0 \! }3 K, P( L/ E, ^# Z. m#define S31 4
. p3 h/ I) }, i( z2 X/ } b) \; U
#define S32 11
& y2 V$ n! ]: s2 o+ s' q
#define S33 16
. l6 M5 a, U q! e$ O( h$ h
#define S34 23
W4 ?7 R' p4 Q: a& O#define S41 6
4 M# Z$ U8 X* K) g* ^3 o
#define S42 10
7 _" c2 e* X$ n# U+ ?& _. r# h#define S43 15
: a) v) k, n7 Z" B* }9 z#define S44 21
% L4 U- y* E$ A1 R
; g* Y+ s4 k0 A) n
static void MD5Transform PROTO_LIST ((UINT4 [4], unsigned char [64]));
9 T6 `9 `5 H* m, y3 |% Qstatic void Encode PROTO_LIST
((unsigned char *, UINT4 *, unsigned int));
# E9 D! X# D& Z
static void Decode PROTO_LIST
((UINT4 *, unsigned char *, unsigned int));
' `3 @0 ?" v. [# x4 g) H
static void MD5_memcpy PROTO_LIST ((POINTER, POINTER, unsigned int));
2 ?" z5 ?( r( j0 t
static void MD5_memset PROTO_LIST ((POINTER, int, unsigned int));
! w+ @9 t: ?5 a
" q) F. ^7 U7 z& ^2 W9 B8 W8 ]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: A8 {5 V
};
. E+ w1 W- g/ R, \9 v- N8 m
. @) q+ I. R f/* F, G, H and I are basic MD5 functions.
*/
- B. a! R; ]+ f6 N& _- U" }
#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
7 _6 { s! U4 e! W1 N; o#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
* [! H4 H' W% p#define H(x, y, z) ((x) ^ (y) ^ (z))
1 p! k1 R' [# U5 ]#define I(x, y, z) ((y) ^ ((x) | (~z)))
; D! P0 @( \+ N6 a
U w: T G" F$ z" G
/* ROTATE_LEFT rotates x left n bits.
*/
. ^5 N9 g6 Y/ F! I5 ~) T; |! S
#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
) }! K8 [- O! j# b4 g
; U7 V- x; d- E/ t/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
9 f9 W$ ^& H- e/ [4 s9 L' [
Rotation is separate from addition to prevent recomputation.
*/
! `$ ^1 f, ]3 s, v2 Y" B#define FF(a, b, c, d, x, s, ac) { \
(a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
; K/ w) }: P1 C4 @+ O* b4 Y( i% z5 \#define GG(a, b, c, d, x, s, ac) { \
(a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
; } t. T, Z6 J/ J#define HH(a, b, c, d, x, s, ac) { \
(a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
7 i5 U- F0 M: }
#define II(a, b, c, d, x, s, ac) { \
(a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
- e; Q+ d2 k5 W3 K! @ G
8 v, J, S- r, Z+ {/ L) B/* MD5 initialization. Begins an MD5 operation, writing a new context.
*/
, V& n4 o; q9 w
void MD5Init (context)
* I7 n' n1 X2 b3 ~) PMD5_CTX *context; /* context */
# }: I7 [; e' e
{
context->count[0] = context->count[1] = 0;
/* Load magic initialization constants.
2 t$ I7 A1 @7 T8 [& a
*/
context->state[0] = 0x67452301;
context->state[1] = 0xefcdab89;
context->state[2] = 0x98badcfe;
context->state[3] = 0x10325476;
+ x+ i+ P Y' m2 d) o; N
}
+ R9 H6 U# w/ _
# _ `9 M) v# O7 t
/* MD5 block update operation. Continues an MD5 message-digest
operation, processing another message block, and updating the
context.
*/
( v5 {7 r+ m6 v
void MD5Update (context, input, inputLen)
, G0 Q7 t$ g9 PMD5_CTX *context; /* context */
" V% q9 W# L3 F, L. D. K: S. t
unsigned char *input; /* input block */
+ @5 w# K" Z5 [. t$ a% Iunsigned int inputLen; /* length of input block */
: B7 g4 o( V' o) P
{
unsigned int i, index, partLen;
$ d/ T) j8 }) Z7 j/ j
/* Compute number of bytes mod 64 */
index = (unsigned int)((context->count[0] >> 3) & 0x3F);
% c# A5 P! ?0 |1 s
/* Update number of bits */
if ((context->count[0] += ((UINT4)inputLen << 3))
& |
|
IP卡
狗仔卡
发表于 2004-11-26 20:11:20
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡
