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#include "global.h"
: F! j. p- v& u+ C5 q#include "md5.h" 6 H: j% M0 s3 _; _' I$ x4 o
, B3 ~9 s% N$ |+ y/* Constants for MD5Transform routine. */
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/ D( S+ f+ J6 i7 ^" ]9 e ) R6 v1 W5 C. ^7 G
#define S11 7
8 W, j. ]) \3 r#define S12 12 / T9 G! W* k( m0 _; A" R
#define S13 17 ; X2 ^. Y, L$ b
#define S14 22
& S9 A y; _5 ^3 y* H- J( x& Q#define S21 5
* v" k. [& m* S- r#define S22 9 $ _8 s7 N+ [: l; T
#define S23 14 & g1 Q! P7 H! h, j
#define S24 20 * ]3 u3 A! [' T) e* {' T7 z
#define S31 4
# _( w8 g; ^' }% c#define S32 11 4 n% C V7 o4 N) k# {$ y6 \7 ^
#define S33 16
" [! Q: |& ?' X+ s! k#define S34 23 2 }" C' Z/ ^7 G$ D% z3 \! S
#define S41 6
# _" g# B& p+ W; M#define S42 10
% A0 G% C+ l. H. h- O Q#define S43 15
5 r: j4 N& \* G0 m4 ^6 B#define S44 21
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static void MD5Transform PROTO_LIST ((UINT4 [4], unsigned char [64])); / b) S: t4 C# K l5 j
static void Encode PROTO_LIST ((unsigned char *, UINT4 *, unsigned int));
8 I5 K: D# w! S2 { _static void Decode PROTO_LIST ((UINT4 *, unsigned char *, unsigned int)); $ l* o" ^/ ]3 R7 A5 G+ {1 N* o0 M
static void MD5_memcpy PROTO_LIST ((POINTER, POINTER, unsigned int));
7 x6 \; Z9 z& V; xstatic void MD5_memset PROTO_LIST ((POINTER, int, unsigned int)); ' B4 x! O- N& i+ m A [: |* i
# A. N$ j8 [1 e
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 ; g3 H0 ~# P. V6 ^" \# e
};
# P1 \- v! X5 R3 O
5 u4 g' f* f& i; N1 A/* F, G, H and I are basic MD5 functions. */
9 Y; C5 W7 q- q) f. _% Z#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) 5 u. }' d T0 N( H5 a9 ? @0 T
#define G(x, y, z) (((x) & (z)) | ((y) & (~z))) / j( q7 @9 V$ i% S6 \" E5 q
#define H(x, y, z) ((x) ^ (y) ^ (z))
2 E5 O/ e v( M1 j) _3 d$ E$ e. \7 T#define I(x, y, z) ((y) ^ ((x) | (~z)))
s3 M, X4 f. N! k8 G
6 T- R; b8 T. L. W, v6 I/* ROTATE_LEFT rotates x left n bits. */
" X! Y1 K q$ i9 X#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
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( n/ [8 ]# B8 L! I/ i/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
* x+ ^- V( V, {% U( y: k- eRotation is separate from addition to prevent recomputation. */
+ g Y7 t4 Y. v: f- u2 |#define FF(a, b, c, d, x, s, ac) { \ (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ } 9 @, @8 m5 b2 n) J
#define GG(a, b, c, d, x, s, ac) { \ (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ }
+ u, \ P) F' [#define HH(a, b, c, d, x, s, ac) { \ (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ }
" ?6 ^9 q/ f6 g#define II(a, b, c, d, x, s, ac) { \ (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \ (a) = ROTATE_LEFT ((a), (s)); \ (a) += (b); \ } 9 r2 V& M% A4 L# E5 a& u
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/* MD5 initialization. Begins an MD5 operation, writing a new context. */ * M# K/ [& ~7 f" }+ i j& |
void MD5Init (context)
. p" R( A3 S0 p. Z& ^MD5_CTX *context; /* context */ ' h4 V j( H, T% l
{ context->count[0] = context->count[1] = 0; /* Load magic initialization constants.
' t; _% {' q# ?, p1 D- }) ]*/ context->state[0] = 0x67452301; context->state[1] = 0xefcdab89; context->state[2] = 0x98badcfe; context->state[3] = 0x10325476; % z5 p/ o/ J' l o* |6 o4 g
}
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" l: G6 h, ^$ x+ S/* MD5 block update operation. Continues an MD5 message-digest operation, processing another message block, and updating the context. */
3 l7 W0 q# ~1 S! H1 Z$ S' Z- fvoid MD5Update (context, input, inputLen) ( @6 ?- o/ m4 X; w1 j3 J: ]
MD5_CTX *context; /* context */
- R3 U( i2 M$ n4 p! w& N' vunsigned char *input; /* input block */ U$ X) J( R1 y. a+ Y9 U
unsigned int inputLen; /* length of input block */ 4 B. F; \5 u3 {* k3 c
{ unsigned int i, index, partLen;
. b( p# c m! u9 }, |4 ~) f3 P, D+ u0 P /* Compute number of bytes mod 64 */ index = (unsigned int)((context->count[0] >> 3) & 0x3F); # P P6 V9 @! x) ~# Y' o
/* Update number of bits */ if ((context->count[0] += ((UINT4)inputLen << 3)) & |
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