th-libs: th_crypto.c annotate

annotate th_crypto.c @ 184:b256db93cf25

Initial import of th_file module.

author	Matti Hamalainen <ccr@tnsp.org>
date	Wed, 20 Jan 2016 16:40:05 +0200
parents	1b39682de64f
children	f04743489c9e

rev	line source
135 1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	1 /*
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	2 * MD5 implementation, modified for th-libs from
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	3 * Colin Plumb's implementation by Matti 'ccr' Hämäläinen.
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	4 *
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	5 * This code implements the MD5 message-digest algorithm.
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	6 * The algorithm is due to Ron Rivest. This code was
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	7 * written by Colin Plumb in 1993, no copyright is claimed.
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	8 * This code is in the public domain; do with it what you wish.
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	9 */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	10 #include "th_crypto.h"
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	11 #include "th_util.h"
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	12
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	13
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	14 #if TH_BYTEORDER == TH_LITTLE_ENDIAN
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	15 # define th_md5_bytereverse(buf, len) /* Nothing */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	16 #elif TH_BYTEORDER == TH_BIG_ENDIAN
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	17 static void th_md5_bytereverse(uint8_t *buf, size_t l)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	18 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	19 do
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	20 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	21 uint32_t t = (uint32_t) ((uint32_t) buf[3] << 8 \| buf[2]) << 16 \| ((uint32_t) buf[1] << 8 \| buf[0]);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	22 (uint32_t ) buf = t;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	23 buf += sizeof(uint32_t);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	24 } while (--l);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	25 }
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	26 #else
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	27 # error Unsupported endianess!
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	28 #endif
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	29
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	30
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	31 /* Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	32 * initialization constants.
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	33 */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	34 void th_md5_init(th_md5state_t *ctx)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	35 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	36 ctx->buf[0] = 0x67452301;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	37 ctx->buf[1] = 0xefcdab89;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	38 ctx->buf[2] = 0x98badcfe;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	39 ctx->buf[3] = 0x10325476;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	40
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	41 ctx->bits[0] = 0;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	42 ctx->bits[1] = 0;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	43 }
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	44
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	45
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	46 /* The core of the MD5 algorithm, this alters an existing MD5 hash to
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	47 * reflect the addition of 16 longwords of new data. th_md5_update blocks
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	48 * the data and converts bytes into longwords for this routine.
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	49 */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	50 #define F1(x, y, z) (z ^ (x & (y ^ z)))
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	51 #define F2(x, y, z) F1(z, x, y)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	52 #define F3(x, y, z) (x ^ y ^ z)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	53 #define F4(x, y, z) (y ^ (x \| ~z))
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	54 #define MD5STEP(f, w, x, y, z, data, s) ( w += f(x, y, z) + data, w = w<<s \| w>>(32-s), w += x )
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	55
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	56 static void th_md5_transform(uint32_t buf[4], uint32_t const in[16])
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	57 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	58 register uint32_t a, b, c, d;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	59
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	60 a = buf[0];
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	61 b = buf[1];
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	62 c = buf[2];
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	63 d = buf[3];
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	64
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	65 MD5STEP(F1, a, b, c, d, in[ 0] + 0xd76aa478, 7);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	66 MD5STEP(F1, d, a, b, c, in[ 1] + 0xe8c7b756, 12);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	67 MD5STEP(F1, c, d, a, b, in[ 2] + 0x242070db, 17);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	68 MD5STEP(F1, b, c, d, a, in[ 3] + 0xc1bdceee, 22);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	69 MD5STEP(F1, a, b, c, d, in[ 4] + 0xf57c0faf, 7);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	70 MD5STEP(F1, d, a, b, c, in[ 5] + 0x4787c62a, 12);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	71 MD5STEP(F1, c, d, a, b, in[ 6] + 0xa8304613, 17);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	72 MD5STEP(F1, b, c, d, a, in[ 7] + 0xfd469501, 22);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	73 MD5STEP(F1, a, b, c, d, in[ 8] + 0x698098d8, 7);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	74 MD5STEP(F1, d, a, b, c, in[ 9] + 0x8b44f7af, 12);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	75 MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	76 MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	77 MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	78 MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	79 MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	80 MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	81
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	82 MD5STEP(F2, a, b, c, d, in[ 1] + 0xf61e2562, 5);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	83 MD5STEP(F2, d, a, b, c, in[ 6] + 0xc040b340, 9);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	84 MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	85 MD5STEP(F2, b, c, d, a, in[ 0] + 0xe9b6c7aa, 20);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	86 MD5STEP(F2, a, b, c, d, in[ 5] + 0xd62f105d, 5);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	87 MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	88 MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	89 MD5STEP(F2, b, c, d, a, in[ 4] + 0xe7d3fbc8, 20);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	90 MD5STEP(F2, a, b, c, d, in[ 9] + 0x21e1cde6, 5);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	91 MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	92 MD5STEP(F2, c, d, a, b, in[ 3] + 0xf4d50d87, 14);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	93 MD5STEP(F2, b, c, d, a, in[ 8] + 0x455a14ed, 20);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	94 MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	95 MD5STEP(F2, d, a, b, c, in[ 2] + 0xfcefa3f8, 9);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	96 MD5STEP(F2, c, d, a, b, in[ 7] + 0x676f02d9, 14);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	97 MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	98
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	99 MD5STEP(F3, a, b, c, d, in[ 5] + 0xfffa3942, 4);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	100 MD5STEP(F3, d, a, b, c, in[ 8] + 0x8771f681, 11);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	101 MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	102 MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	103 MD5STEP(F3, a, b, c, d, in[ 1] + 0xa4beea44, 4);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	104 MD5STEP(F3, d, a, b, c, in[ 4] + 0x4bdecfa9, 11);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	105 MD5STEP(F3, c, d, a, b, in[ 7] + 0xf6bb4b60, 16);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	106 MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	107 MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	108 MD5STEP(F3, d, a, b, c, in[ 0] + 0xeaa127fa, 11);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	109 MD5STEP(F3, c, d, a, b, in[ 3] + 0xd4ef3085, 16);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	110 MD5STEP(F3, b, c, d, a, in[ 6] + 0x04881d05, 23);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	111 MD5STEP(F3, a, b, c, d, in[ 9] + 0xd9d4d039, 4);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	112 MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	113 MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	114 MD5STEP(F3, b, c, d, a, in[ 2] + 0xc4ac5665, 23);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	115
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	116 MD5STEP(F4, a, b, c, d, in[ 0] + 0xf4292244, 6);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	117 MD5STEP(F4, d, a, b, c, in[ 7] + 0x432aff97, 10);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	118 MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	119 MD5STEP(F4, b, c, d, a, in[ 5] + 0xfc93a039, 21);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	120 MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	121 MD5STEP(F4, d, a, b, c, in[ 3] + 0x8f0ccc92, 10);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	122 MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	123 MD5STEP(F4, b, c, d, a, in[ 1] + 0x85845dd1, 21);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	124 MD5STEP(F4, a, b, c, d, in[ 8] + 0x6fa87e4f, 6);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	125 MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	126 MD5STEP(F4, c, d, a, b, in[ 6] + 0xa3014314, 15);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	127 MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	128 MD5STEP(F4, a, b, c, d, in[ 4] + 0xf7537e82, 6);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	129 MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	130 MD5STEP(F4, c, d, a, b, in[ 2] + 0x2ad7d2bb, 15);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	131 MD5STEP(F4, b, c, d, a, in[ 9] + 0xeb86d391, 21);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	132
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	133 buf[0] += a;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	134 buf[1] += b;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	135 buf[2] += c;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	136 buf[3] += d;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	137 }
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	138
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	139
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	140 /* Update context to reflect the concatenation of another buffer full
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	141 * of bytes.
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	142 */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	143 void th_md5_append(th_md5state_t ctx, const uint8_t buf, size_t len)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	144 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	145 uint32_t t;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	146
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	147 /* Update bitcount */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	148 t = ctx->bits[0];
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	149 if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	150 ctx->bits[1]++; /* Carry from low to high */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	151 ctx->bits[1] += len >> 29;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	152
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	153 t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	154
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	155 /* Handle any leading odd-sized chunks */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	156 if (t)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	157 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	158 uint8_t p = (uint8_t ) ctx->in + t;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	159
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	160 t = 64 - t;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	161 if (len < t)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	162 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	163 memcpy(p, buf, len);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	164 return;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	165 }
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	166 memcpy(p, buf, t);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	167 th_md5_bytereverse(ctx->in, 16);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	168 th_md5_transform(ctx->buf, (uint32_t *) ctx->in);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	169 buf += t;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	170 len -= t;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	171 }
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	172
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	173 /* Process data in 64-byte chunks */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	174 while (len >= 64)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	175 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	176 memcpy(ctx->in, buf, 64);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	177 th_md5_bytereverse(ctx->in, 16);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	178 th_md5_transform(ctx->buf, (uint32_t *) ctx->in);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	179 buf += 64;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	180 len -= 64;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	181 }
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	182
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	183 /* Handle any remaining bytes of data. */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	184 memcpy(ctx->in, buf, len);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	185 }
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	186
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	187
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	188 /* Final wrapup - pad to 64-byte boundary with the bit pattern
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	189 * 1 0* (64-bit count of bits processed, MSB-first)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	190 */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	191 void th_md5_finish(th_md5state_t *ctx, th_md5hash_t digest)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	192 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	193 size_t count;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	194 uint8_t *p;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	195
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	196 /* Compute number of bytes mod 64 */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	197 count = (ctx->bits[0] >> 3) & 0x3F;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	198
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	199 /* Set the first char of padding to 0x80. This is safe since there is
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	200 always at least one byte free */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	201 p = ctx->in + count;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	202 *p++ = 0x80;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	203
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	204 /* Bytes of padding needed to make 64 bytes */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	205 count = 64 - 1 - count;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	206
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	207 /* Pad out to 56 mod 64 */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	208 if (count < 8)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	209 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	210 /* Two lots of padding: Pad the first block to 64 bytes */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	211 memset(p, 0, count);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	212 th_md5_bytereverse(ctx->in, 16);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	213 th_md5_transform(ctx->buf, (uint32_t *) ctx->in);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	214
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	215 /* Now fill the next block with 56 bytes */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	216 memset(ctx->in, 0, 56);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	217 }
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	218 else
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	219 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	220 /* Pad block to 56 bytes */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	221 memset(p, 0, count - 8);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	222 }
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	223 th_md5_bytereverse(ctx->in, 14);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	224
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	225 /* Append length in bits and transform */
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	226 memcpy(((uint32_t *) ctx->in) + 14, &ctx->bits[0], sizeof(uint32_t));
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	227 memcpy(((uint32_t *) ctx->in) + 15, &ctx->bits[1], sizeof(uint32_t));
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	228
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	229 th_md5_transform(ctx->buf, (uint32_t *) ctx->in);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	230 th_md5_bytereverse((uint8_t *) ctx->buf, 4);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	231 memcpy(digest, ctx->buf, 16);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	232 memset(ctx, 0, sizeof(*ctx));
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	233 }
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	234
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	235
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	236 void th_md5_print(FILE *fp, const th_md5hash_t digest)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	237 {
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	238 int i;
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	239 for (i = 0; i < TH_MD5HASH_LENGTH; i++)
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	240 fprintf(fp, "%02x", digest[i]);
1b39682de64f Add "crypto" module, only silly MD5 calculation in it now. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	241 }

Mercurial > hg > th-libs

annotate th_crypto.c @ 184:b256db93cf25