dropbear: src/hashes/sha2/sha256.c annotate

annotate src/hashes/sha2/sha256.c @ 191:1c15b283127b libtomcrypt-orig

Import of libtomcrypt 1.02 with manual path rename rearrangement etc

author	Matt Johnston <matt@ucc.asn.au>
date	Fri, 06 May 2005 13:23:02 +0000
parents
children	39d5d58461d6

rev	line source
191 1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 * LibTomCrypt is a library that provides various cryptographic
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 * algorithms in a highly modular and flexible manner.
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 * The library is free for all purposes without any express
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 * guarantee it works.
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 * Tom St Denis, [email protected], http://libtomcrypt.org
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 #include "tomcrypt.h"
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 /**
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 @file sha256.c
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 SHA256 by Tom St Denis
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 #ifdef SHA256
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 const struct ltc_hash_descriptor sha256_desc =
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 "sha256",
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 0,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24 32,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 64,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 /* DER identifier */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 { 0x30, 0x31, 0x30, 0x0D, 0x06, 0x09, 0x60, 0x86,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x05,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 0x00, 0x04, 0x20 },
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 19,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 &sha256_init,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 &sha256_process,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 &sha256_done,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 &sha256_test
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 };
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 #ifdef LTC_SMALL_CODE
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 /* the K array */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 static const unsigned long K[64] = {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL, 0x3956c25bUL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL, 0xd807aa98UL, 0x12835b01UL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 0x243185beUL, 0x550c7dc3UL, 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 0xc19bf174UL, 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46 0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL, 0x983e5152UL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL, 0xc6e00bf3UL, 0xd5a79147UL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 0x06ca6351UL, 0x14292967UL, 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49 0x53380d13UL, 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50 0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL, 0xd192e819UL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL, 0x19a4c116UL, 0x1e376c08UL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 0x2748774cUL, 0x34b0bcb5UL, 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 0x682e6ff3UL, 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 };
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58 /* Various logical functions */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59 #define Ch(x,y,z) (z ^ (x & (y ^ z)))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 #define Maj(x,y,z) (((x \| y) & z) \| (x & y))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61 #define S(x, n) RORc((x),(n))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62 #define R(x, n) (((x)&0xFFFFFFFFUL)>>(n))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 #define Sigma0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 #define Sigma1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65 #define Gamma0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 #define Gamma1(x) (S(x, 17) ^ S(x, 19) ^ R(x, 10))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68 /* compress 512-bits */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 #ifdef LTC_CLEAN_STACK
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 static int _sha256_compress(hash_state * md, unsigned char *buf)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 #else
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72 static int sha256_compress(hash_state * md, unsigned char *buf)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75 ulong32 S[8], W[64], t0, t1;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76 #ifdef LTC_SMALL_CODE
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 ulong32 t;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79 int i;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81 /* copy state into S */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 for (i = 0; i < 8; i++) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83 S[i] = md->sha256.state[i];
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 /* copy the state into 512-bits into W[0..15] */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 for (i = 0; i < 16; i++) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	88 LOAD32H(W[i], buf + (4*i));
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	89 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91 /* fill W[16..63] */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 for (i = 16; i < 64; i++) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93 W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	94 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96 /* Compress */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 #ifdef LTC_SMALL_CODE
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 #define RND(a,b,c,d,e,f,g,h,i) \
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 t0 = h + Sigma1(e) + Ch(e, f, g) + K[i] + W[i]; \
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100 t1 = Sigma0(a) + Maj(a, b, c); \
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101 d += t0; \
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102 h = t0 + t1;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104 for (i = 0; i < 64; ++i) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],i);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 t = S[7]; S[7] = S[6]; S[6] = S[5]; S[5] = S[4];
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107 S[4] = S[3]; S[3] = S[2]; S[2] = S[1]; S[1] = S[0]; S[0] = t;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109 #else
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110 #define RND(a,b,c,d,e,f,g,h,i,ki) \
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 t0 = h + Sigma1(e) + Ch(e, f, g) + ki + W[i]; \
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112 t1 = Sigma0(a) + Maj(a, b, c); \
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113 d += t0; \
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 h = t0 + t1;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],0,0x428a2f98);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],1,0x71374491);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	118 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],2,0xb5c0fbcf);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	119 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],3,0xe9b5dba5);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],4,0x3956c25b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	121 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],5,0x59f111f1);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	122 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],6,0x923f82a4);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],7,0xab1c5ed5);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],8,0xd807aa98);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],9,0x12835b01);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],10,0x243185be);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],11,0x550c7dc3);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],12,0x72be5d74);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],13,0x80deb1fe);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],14,0x9bdc06a7);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],15,0xc19bf174);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],16,0xe49b69c1);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],17,0xefbe4786);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],18,0x0fc19dc6);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],19,0x240ca1cc);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],20,0x2de92c6f);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],21,0x4a7484aa);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],22,0x5cb0a9dc);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],23,0x76f988da);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],24,0x983e5152);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],25,0xa831c66d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],26,0xb00327c8);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],27,0xbf597fc7);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],28,0xc6e00bf3);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],29,0xd5a79147);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],30,0x06ca6351);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],31,0x14292967);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],32,0x27b70a85);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],33,0x2e1b2138);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],34,0x4d2c6dfc);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],35,0x53380d13);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],36,0x650a7354);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],37,0x766a0abb);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],38,0x81c2c92e);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	155 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],39,0x92722c85);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],40,0xa2bfe8a1);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],41,0xa81a664b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],42,0xc24b8b70);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	159 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],43,0xc76c51a3);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],44,0xd192e819);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],45,0xd6990624);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],46,0xf40e3585);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	163 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],47,0x106aa070);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	164 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],48,0x19a4c116);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],49,0x1e376c08);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	166 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],50,0x2748774c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	167 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],51,0x34b0bcb5);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	168 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],52,0x391c0cb3);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	169 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],53,0x4ed8aa4a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],54,0x5b9cca4f);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],55,0x682e6ff3);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],56,0x748f82ee);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	173 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],57,0x78a5636f);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	174 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],58,0x84c87814);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	175 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],59,0x8cc70208);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	176 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],60,0x90befffa);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	177 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],61,0xa4506ceb);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	178 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],62,0xbef9a3f7);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	179 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],63,0xc67178f2);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	180
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	181 #undef RND
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185 /* feedback */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 for (i = 0; i < 8; i++) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	187 md->sha256.state[i] = md->sha256.state[i] + S[i];
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189 return CRYPT_OK;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	190 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192 #ifdef LTC_CLEAN_STACK
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193 static int sha256_compress(hash_state * md, unsigned char *buf)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194 {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	195 int err;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 err = _sha256_compress(md, buf);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197 burn_stack(sizeof(ulong32) * 74);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	198 return err;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 /**
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203 Initialize the hash state
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204 @param md The hash state you wish to initialize
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205 @return CRYPT_OK if successful
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	207 int sha256_init(hash_state * md)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	208 {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209 LTC_ARGCHK(md != NULL);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211 md->sha256.curlen = 0;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	212 md->sha256.length = 0;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213 md->sha256.state[0] = 0x6A09E667UL;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	214 md->sha256.state[1] = 0xBB67AE85UL;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	215 md->sha256.state[2] = 0x3C6EF372UL;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216 md->sha256.state[3] = 0xA54FF53AUL;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	217 md->sha256.state[4] = 0x510E527FUL;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	218 md->sha256.state[5] = 0x9B05688CUL;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219 md->sha256.state[6] = 0x1F83D9ABUL;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220 md->sha256.state[7] = 0x5BE0CD19UL;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	221 return CRYPT_OK;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224 /**
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 Process a block of memory though the hash
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226 @param md The hash state
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227 @param in The data to hash
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	228 @param inlen The length of the data (octets)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	229 @return CRYPT_OK if successful
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	230 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231 HASH_PROCESS(sha256_process, sha256_compress, sha256, 64)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	233 /**
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	234 Terminate the hash to get the digest
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	235 @param md The hash state
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	236 @param out [out] The destination of the hash (32 bytes)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237 @return CRYPT_OK if successful
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	238 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239 int sha256_done(hash_state * md, unsigned char *out)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	240 {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	241 int i;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	242
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	243 LTC_ARGCHK(md != NULL);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244 LTC_ARGCHK(out != NULL);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	245
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	246 if (md->sha256.curlen >= sizeof(md->sha256.buf)) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	247 return CRYPT_INVALID_ARG;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	248 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	249
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	250
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	251 /* increase the length of the message */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	252 md->sha256.length += md->sha256.curlen * 8;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	253
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	254 /* append the '1' bit */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	255 md->sha256.buf[md->sha256.curlen++] = (unsigned char)0x80;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	256
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	257 /* if the length is currently above 56 bytes we append zeros
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	258 * then compress. Then we can fall back to padding zeros and length
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	259 * encoding like normal.
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	260 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	261 if (md->sha256.curlen > 56) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	262 while (md->sha256.curlen < 64) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	263 md->sha256.buf[md->sha256.curlen++] = (unsigned char)0;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	264 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	265 sha256_compress(md, md->sha256.buf);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	266 md->sha256.curlen = 0;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	267 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	268
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	269 /* pad upto 56 bytes of zeroes */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	270 while (md->sha256.curlen < 56) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	271 md->sha256.buf[md->sha256.curlen++] = (unsigned char)0;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	272 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	273
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	274 /* store length */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	275 STORE64H(md->sha256.length, md->sha256.buf+56);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	276 sha256_compress(md, md->sha256.buf);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	277
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	278 /* copy output */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	279 for (i = 0; i < 8; i++) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 STORE32H(md->sha256.state[i], out+(4*i));
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	282 #ifdef LTC_CLEAN_STACK
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	283 zeromem(md, sizeof(hash_state));
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 return CRYPT_OK;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	287
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	288 /**
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289 Self-test the hash
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290 @return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	291 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	292 int sha256_test(void)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	293 {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	294 #ifndef LTC_TEST
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	295 return CRYPT_NOP;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	296 #else
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	297 static const struct {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	298 char *msg;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	299 unsigned char hash[32];
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	300 } tests[] = {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	301 { "abc",
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	302 { 0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	303 0x41, 0x41, 0x40, 0xde, 0x5d, 0xae, 0x22, 0x23,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	304 0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17, 0x7a, 0x9c,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	305 0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	306 },
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	307 { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	308 { 0x24, 0x8d, 0x6a, 0x61, 0xd2, 0x06, 0x38, 0xb8,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	309 0xe5, 0xc0, 0x26, 0x93, 0x0c, 0x3e, 0x60, 0x39,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	310 0xa3, 0x3c, 0xe4, 0x59, 0x64, 0xff, 0x21, 0x67,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	311 0xf6, 0xec, 0xed, 0xd4, 0x19, 0xdb, 0x06, 0xc1 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	312 },
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	313 };
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	314
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	315 int i;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	316 unsigned char tmp[32];
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	317 hash_state md;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	318
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	319 for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	320 sha256_init(&md);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	321 sha256_process(&md, (unsigned char*)tests[i].msg, (unsigned long)strlen(tests[i].msg));
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	322 sha256_done(&md, tmp);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	323 if (memcmp(tmp, tests[i].hash, 32) != 0) {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	324 return CRYPT_FAIL_TESTVECTOR;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	325 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	326 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	327 return CRYPT_OK;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	328 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	329 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	330
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	331 #ifdef SHA224
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	332 #include "sha224.c"
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	333 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	334
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	335 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	336
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	337

Mercurial > dropbear

annotate src/hashes/sha2/sha256.c @ 191:1c15b283127b libtomcrypt-orig