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#include "global.h"
1 c2 H6 k. \! x8 H% `+ s i#include "md5.h" ( M+ p$ j, x% L, d6 k; [6 K
* W3 l+ |* q2 r2 W- W+ E8 ~5 `7 k/* Constants for MD5Transform routine. */
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#define S11 7 $ F) \3 t/ b2 v
#define S12 12
# N# v* R; r+ P#define S13 17
+ |0 B5 G" w2 Q$ d5 Y& ?6 r3 D8 ~+ d#define S14 22
- _7 N" T! Q2 l7 t#define S21 5
& ~0 N8 I' {0 h& c# z#define S22 9 5 o% p0 P w8 G4 X5 p2 L/ f3 X
#define S23 14
0 }; z' F, V2 w6 p8 M#define S24 20
* i( Y& L( V- t5 n! _: A" F#define S31 4 7 P# ?* P+ m0 u0 T) h
#define S32 11
2 Y3 _/ B, d8 j3 e3 w; r#define S33 16 3 [; X+ K" ?; E
#define S34 23
7 o* T; L" h P, s7 u/ Z$ a#define S41 6
- q2 s: l$ J2 j! y) L% |$ |: u) }#define S42 10 9 O7 F9 G& A1 o$ ?9 M
#define S43 15
! t' C$ N+ ?! y9 Y5 J#define S44 21 . a! J. z3 s4 y
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static void MD5Transform PROTO_LIST ((UINT4 [4], unsigned char [64]));
6 S! Z& z+ Q1 U+ W) s3 o0 {static void Encode PROTO_LIST ((unsigned char *, UINT4 *, unsigned int));
7 u( r" [' l) v. g* B8 {8 hstatic void Decode PROTO_LIST ((UINT4 *, unsigned char *, unsigned int)); ! x" @' g c6 L( |
static void MD5_memcpy PROTO_LIST ((POINTER, POINTER, unsigned int));
7 T! M. `! ~6 G+ _, m8 m- dstatic void MD5_memset PROTO_LIST ((POINTER, int, unsigned int)); . V _" ?5 b3 a
3 b+ [( L c1 M qstatic 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 ! V( l3 p4 v q) x6 Y4 |2 N! L
}; , C) \# V: E: E: P3 g
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/* F, G, H and I are basic MD5 functions. */
: @% ?2 S, N7 m W9 Z#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) 8 y2 g4 l+ [$ T# }. I
#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
% L' a* P8 d7 B6 ~6 Z+ P#define H(x, y, z) ((x) ^ (y) ^ (z)) * H; F$ u2 o' \) X1 Q
#define I(x, y, z) ((y) ^ ((x) | (~z))) 5 d# M4 Y/ I6 E! O' Q& }
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/* ROTATE_LEFT rotates x left n bits. */
! A7 G) d. H0 b) `6 c, O#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
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/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4. % V, s$ }+ o; ^7 v* ^& ~4 e; p
Rotation is separate from addition to prevent recomputation. */ $ g) }4 I9 D2 t( E
#define FF(a, b, c, d, x, s, ac) { \ (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ } / U. ]$ D, u' y/ e- a
#define GG(a, b, c, d, x, s, ac) { \ (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ }
) g2 C1 Z! |: z: E" b! H#define HH(a, b, c, d, x, s, ac) { \ (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ } 1 i: m/ ~, P; x0 D/ S# N) A& d& ~
#define II(a, b, c, d, x, s, ac) { \ (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ }
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/* MD5 initialization. Begins an MD5 operation, writing a new context. */ + \! Q# V/ b" I$ G$ O0 E: V
void MD5Init (context)
1 m/ k/ D! L7 J vMD5_CTX *context; /* context */ 0 S* d- c# u# }6 [, q; k' _5 n- x
{ context->count[0] = context->count[1] = 0; /* Load magic initialization constants. , q/ c m6 e7 E& a! A
*/ context->state[0] = 0x67452301; context->state[1] = 0xefcdab89; context->state[2] = 0x98badcfe; context->state[3] = 0x10325476;
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( u" F! ?# U# @ _! |8 I$ _( \' E8 G8 g/* MD5 block update operation. Continues an MD5 message-digest operation, processing another message block, and updating the context. */
4 c0 n" D. B; S! X# _( o% bvoid MD5Update (context, input, inputLen)
! s' O- \* B8 t( vMD5_CTX *context; /* context */ ! v1 @6 u k* I" d3 E: Z
unsigned char *input; /* input block */
/ m# G. d+ X$ P* {( }unsigned int inputLen; /* length of input block */
6 t+ G) ?, X8 ~7 y, N3 J; n6 ]{ unsigned int i, index, partLen;
; N* N* |% V7 L& }3 _4 H /* Compute number of bytes mod 64 */ index = (unsigned int)((context->count[0] >> 3) & 0x3F); % e. H* ~ X2 X/ z
/* Update number of bits */ if ((context->count[0] += ((UINT4)inputLen << 3)) & |
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