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#include "global.h"
# f0 J9 e$ i: m9 m#include "md5.h"
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/* Constants for MD5Transform routine. */ 7 d! e) }& ?2 w8 M; C5 l
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#define S11 7
6 [6 Y1 Z$ g0 x2 i; w6 I#define S12 12
7 H* R2 z& P. k! \- C4 U& f0 M ?#define S13 17 1 g4 A l0 R) P ^+ T
#define S14 22 , z$ B& f! K+ M; C" m0 _
#define S21 5 * {& r+ M' R# v. W" w' r( {
#define S22 9 ) |; S/ d0 Y, G" Z
#define S23 14
* q0 b% W7 f2 n# v/ l9 S: z5 k#define S24 20
" m1 b' U1 j2 c n3 z8 r7 ]" ?# x#define S31 4 9 z0 x0 Z* |, }& C+ p, A+ d
#define S32 11
5 t% T* E) c8 g$ {# F n#define S33 16 . E4 H1 v# r- j @/ x- g& g0 F
#define S34 23 3 c. _: v3 G j$ i8 M2 P6 @
#define S41 6
4 S, s7 b; v) H% V) @+ j#define S42 10
0 ]2 ^0 E; ?$ j* G/ e% x- Q5 H$ Q#define S43 15 8 i1 D% k! w% S' k9 T( P$ D
#define S44 21
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static void MD5Transform PROTO_LIST ((UINT4 [4], unsigned char [64]));
8 ?; _ I" n7 B! L$ K6 N5 xstatic void Encode PROTO_LIST ((unsigned char *, UINT4 *, unsigned int)); 3 {3 h9 C/ ~2 J7 J' {
static void Decode PROTO_LIST ((UINT4 *, unsigned char *, unsigned int));
7 ~2 u* B0 B( G+ B: V3 bstatic void MD5_memcpy PROTO_LIST ((POINTER, POINTER, unsigned int)); 5 ?9 E$ `/ S, @8 @+ s
static void MD5_memset PROTO_LIST ((POINTER, int, unsigned int));
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1 i: q& c1 \* j, L* K( W( A3 ~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 1 Y6 O1 H# J" y* A: f
}; 0 g2 e- R2 d: M+ \4 D6 l
5 O# |2 ~6 V1 I a/* F, G, H and I are basic MD5 functions. */ 7 \* I' e; G0 a" f% x
#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) ) r! ^, w+ q: d7 V& G9 q
#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
% V' |* Y" v b5 l5 \#define H(x, y, z) ((x) ^ (y) ^ (z)) 5 I3 d. j% \- [6 f) y
#define I(x, y, z) ((y) ^ ((x) | (~z))) ( Q! _" M+ G7 _) s6 M
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/* ROTATE_LEFT rotates x left n bits. */ $ F6 ~! Y/ M+ I! j: Z
#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.
2 r3 D1 g Z6 Z) eRotation is separate from addition to prevent recomputation. */ 7 v y: |; Z9 x x! O9 j/ ]/ L
#define FF(a, b, c, d, x, s, ac) { \ (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ } / `4 ^ K+ M; H+ H
#define GG(a, b, c, d, x, s, ac) { \ (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ } ( @9 h: p3 s1 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); \ } 2 ^1 A+ E6 N4 K# ]/ `7 }
#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. */ 5 K7 X* `8 i+ O J
void MD5Init (context) 0 U* ]6 `2 f. f5 A& U1 G* l
MD5_CTX *context; /* context */ - F) J4 O2 z! N
{ context->count[0] = context->count[1] = 0; /* Load magic initialization constants. ; S5 m; w/ `0 ?
*/ context->state[0] = 0x67452301; context->state[1] = 0xefcdab89; context->state[2] = 0x98badcfe; context->state[3] = 0x10325476; $ h6 p. Z2 P) U
} 9 S; n" h; m4 g6 P# m! D
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/* MD5 block update operation. Continues an MD5 message-digest operation, processing another message block, and updating the context. */ ; q' ?6 K3 Q& s- P! b; ]
void MD5Update (context, input, inputLen)
+ e( Y8 L4 A5 nMD5_CTX *context; /* context */ 4 U! n& J. w7 J- s3 {
unsigned char *input; /* input block */
4 Z' d' l' X& F$ H2 gunsigned int inputLen; /* length of input block */ 6 e0 p: ]$ `) E! n* |- d. q
{ unsigned int i, index, partLen; ' b. W6 y: o6 `5 s P, C, i+ f) u6 E
/* Compute number of bytes mod 64 */ index = (unsigned int)((context->count[0] >> 3) & 0x3F); 6 E" h Q* |7 N! r0 h9 [* M
/* Update number of bits */ if ((context->count[0] += ((UINT4)inputLen << 3)) & |
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