pmdwin: lfg.c annotate

author	Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date	Tue, 21 May 2013 10:29:21 +0200
parents
children

rev	line source
0 c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	1 /*! \file
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	2 * This code implements the MD5 message-digest algorithm.
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	3 * The algorithm is due to Ron Rivest. This code was
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	4 * written by Colin Plumb in 1993, no copyright is claimed.
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	5 * This code is in the public domain; do with it what you wish.
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	6 *
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	7 * Equivalent code is available from RSA Data Security, Inc.
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	8 * This code has been tested against that, and is equivalent,
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	9 * except that you don't need to include two pages of legalese
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	10 * with every copy.
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	11 *
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	12 * To compute the message digest of a chunk of bytes, declare an
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	13 * MD5Context structure, pass it to MD5Init, call MD5Update as
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	14 * needed on buffers full of bytes, and then call MD5Final, which
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	15 * will fill a supplied 16-byte array with the digest.
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	16 */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	17 #include <stdint.h>
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	18 #include <string.h>
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	19
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	20 typedef struct {
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	21 uint32_t buf[4];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	22 uint32_t bytes[2];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	23 uint32_t in[16];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	24 } MD5_CTX;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	25 #define ROTATE(a,n) ({ register unsigned int ret; \
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	26 __asm__ volatile("roll %%cl,%0" \
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	27 : "=r"(ret) \
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	28 : "c"(n), "0"((unsigned int)(a)) \
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	29 : "cc"); ret; })
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	30
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	31 /*!
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	32 * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	33 * initialization constants.
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	34 */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	35 void
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	36 MD5Init(MD5_CTX *ctx) {
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	37 ctx->buf[0] = 0x67452301;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	38 ctx->buf[1] = 0xefcdab89;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	39 ctx->buf[2] = 0x98badcfe;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	40 ctx->buf[3] = 0x10325476;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	41
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	42 ctx->bytes[0] = 0;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	43 ctx->bytes[1] = 0;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	44 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	45
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	46 /@{/
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	47 /! The four core functions - F1 is optimized somewhat /
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	48
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	49 /* #define F1(x, y, z) (x & y \| ~x & z) */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	50 #define F1(x, y, z) (z ^ (x & (y ^ z)))
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	51 #define F2(x, y, z) F1(z, x, y)
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	52 #define F3(x, y, z) (x ^ y ^ z)
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	53 #define F4(x, y, z) (y ^ (x \| ~z))
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	54 /@}/
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	55
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	56 /! This is the central step in the MD5 algorithm. /
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	57 #define MD5STEP(f,w,x,y,z,in,s) \
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	58 (w += f(x,y,z) + in, w = (w<<s \| w>>(32-s)) + x)
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	59
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	60 /*!
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	61 * The core of the MD5 algorithm, this alters an existing MD5 hash to
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	62 * reflect the addition of 16 longwords of new data. MD5Update blocks
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	63 * the data and converts bytes into longwords for this routine.
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	64 */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	65 static void
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	66 transform(uint32_t buf[4], uint32_t const in[16]) {
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	67 register uint32_t a, b, c, d;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	68
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	69 a = buf[0];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	70 b = buf[1];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	71 c = buf[2];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	72 d = buf[3];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	73
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	74 MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	75 MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	76 MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	77 MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	78 MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	79 MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	80 MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	81 MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	82 MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	83 MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	84 MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	85 MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	86 MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	87 MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	88 MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	89 MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	90
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	91 MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	92 MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	93 MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	94 MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	95 MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	96 MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	97 MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	98 MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	99 MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	100 MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	101 MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	102 MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	103 MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	104 MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	105 MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	106 MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	107
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	108 MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	109 MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	110 MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	111 MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	112 MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	113 MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	114 MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	115 MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	116 MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	117 MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	118 MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	119 MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	120 MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	121 MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	122 MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	123 MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	124
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	125 MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	126 MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	127 MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	128 MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	129 MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	130 MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	131 MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	132 MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	133 MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	134 MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	135 MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	136 MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	137 MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	138 MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	139 MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	140 MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	141
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	142 buf[0] += a;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	143 buf[1] += b;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	144 buf[2] += c;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	145 buf[3] += d;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	146 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	147
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	148 /*!
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	149 * Update context to reflect the concatenation of another buffer full
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	150 * of bytes.
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	151 */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	152 void
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	153 MD5Update(MD5_CTX ctx, const unsigned char buf, unsigned int len) {
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	154 uint32_t t;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	155
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	156 /* Update byte count */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	157
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	158 t = ctx->bytes[0];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	159 if ((ctx->bytes[0] = t + len) < t)
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	160 ctx->bytes[1]++; /* Carry from low to high */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	161
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	162 t = 64 - (t & 0x3f); /* Space available in ctx->in (at least 1) */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	163 if (t > len) {
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	164 memcpy((unsigned char *)ctx->in + 64 - t, buf, len);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	165 return;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	166 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	167 /* First chunk is an odd size */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	168 memcpy((unsigned char *)ctx->in + 64 - t, buf, t);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	169 transform(ctx->buf, ctx->in);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	170 buf += t;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	171 len -= t;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	172
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	173 /* Process data in 64-byte chunks */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	174 while (len >= 64) {
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	175 memcpy(ctx->in, buf, 64);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	176 transform(ctx->buf, ctx->in);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	177 buf += 64;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	178 len -= 64;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	179 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	180
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	181 /* Handle any remaining bytes of data. */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	182 memcpy(ctx->in, buf, len);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	183 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	184
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	185 static inline void small_memset(void *addr, int c, size_t size) {
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	186 __asm__ volatile("xor %%al, %%al \t\n"
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	187 "rep; stosb \t\n"
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	188 :"+D"(addr) :"c"(size) :"%al");
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	189 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	190
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	191 /*!
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	192 * Final wrapup - pad to 64-byte boundary with the bit pattern
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	193 * 1 0* (64-bit count of bits processed, MSB-first)
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	194 */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	195 void
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	196 MD5Final(MD5_CTX ctx, unsigned char digest) {
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	197 int count = ctx->bytes[0] & 0x3f; /* Number of bytes in ctx->in */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	198 unsigned char p = (unsigned char )ctx->in + count;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	199
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	200 /* Set the first char of padding to 0x80. There is always room. */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	201 *p++ = 0x80;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	202
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	203 /* Bytes of padding needed to make 56 bytes (-8..55) */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	204 count = 56 - 1 - count;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	205
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	206 if (count < 0) { /* Padding forces an extra block */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	207 small_memset(p, 0, count + 8);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	208 transform(ctx->buf, ctx->in);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	209 p = (unsigned char *)ctx->in;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	210 count = 56;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	211 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	212 small_memset(p, 0, count);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	213
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	214 /* Append length in bits and transform */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	215 ctx->in[14] = ctx->bytes[0] << 3;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	216 ctx->in[15] = ctx->bytes[1] << 3 \| ctx->bytes[0] >> 29;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	217 transform(ctx->buf, ctx->in);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	218 memcpy(digest, ctx->buf, 16);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	219 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	220
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	221 typedef struct {
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	222 unsigned int state[64];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	223 unsigned int index;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	224 } AVLFG;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	225 static AVLFG c;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	226
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	227 void lfg_srand(unsigned int seed){
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	228 uint32_t i, tmp[4]={0};
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	229 MD5_CTX ctx;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	230
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	231 for(i=0; i<64; i+=4){
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	232 tmp[0]=seed; tmp[3]=i;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	233 MD5Init(&ctx);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	234 MD5Update(&ctx, (uint8_t*)tmp, 16);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	235 MD5Final(&ctx, (uint8_t*)tmp);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	236 c.state[i ]= tmp[0];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	237 c.state[i+1]= tmp[1];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	238 c.state[i+2]= tmp[2];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	239 c.state[i+3]= tmp[3];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	240 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	241 c.index=0;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	242 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	243
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	244 /**
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	245 * Get the next random unsigned 32-bit number using an ALFG.
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	246 */
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	247 unsigned int lfg_rand(void){
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	248 c.state[c.index & 63] = c.state[(c.index-24) & 63] + c.state[(c.index-55) & 63];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	249 return c.state[c.index++ & 63];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	250 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	251
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	252 #ifdef TEST
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	253 #include <stdio.h>
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	254 void av_md5_sum(uint8_t dst, const uint8_t src, const int len)
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	255 {
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	256 MD5_CTX ctx;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	257
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	258 MD5Init(&ctx);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	259 MD5Update(&ctx, src, len);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	260 MD5Final(&ctx, dst);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	261 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	262
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	263 static void print_md5(uint8_t *md5)
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	264 {
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	265 int i;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	266 for (i = 0; i < 16; i++)
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	267 printf("%02x", md5[i]);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	268 printf("\n");
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	269 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	270
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	271 int main(void){
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	272 uint8_t md5val[16];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	273 int i;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	274 uint8_t in[1000];
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	275
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	276 for (i = 0; i < 1000; i++)
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	277 in[i] = i * i;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	278 av_md5_sum(md5val, in, 1000); print_md5(md5val);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	279 av_md5_sum(md5val, in, 63); print_md5(md5val);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	280 av_md5_sum(md5val, in, 64); print_md5(md5val);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	281 av_md5_sum(md5val, in, 65); print_md5(md5val);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	282 for (i = 0; i < 1000; i++)
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	283 in[i] = i % 127;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	284 av_md5_sum(md5val, in, 999); print_md5(md5val);
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	285
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	286 return 0;
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	287 }
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	288 #endif
c55ea9478c80 Hello Gensokyo! Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	289

0

c55ea9478c80 Hello Gensokyo!