dropbear: sha256.c annotate

annotate sha256.c @ 50:c61e66431001 libtomcrypt

Merge of the normal Dropbear makefile: - Don't include mpi.o, since it does Bad Things (tm) (wrt LTM) - Don't try to make clean in tests if it doesn't exist (infinite looping makefiles, mmmmm)

author	Matt Johnston <matt@ucc.asn.au>
date	Sat, 07 Aug 2004 16:33:31 +0000
parents	b939f2d4431e
children	7ed585a2c53b

rev	line source
20 b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	2 *
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	3 * LibTomCrypt is a library that provides various cryptographic
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	4 * algorithms in a highly modular and flexible manner.
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	5 *
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	6 * The library is free for all purposes without any express
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	7 * guarantee it works.
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	8 *
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	9 * Tom St Denis, [email protected], http://libtomcrypt.org
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	10 */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	11
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	12
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	13 /* SHA256 by Tom St Denis */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	14
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	15 #include "mycrypt.h"
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	16
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	17 #ifdef SHA256
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	18
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	19 const struct _hash_descriptor sha256_desc =
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	20 {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	21 "sha256",
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	22 0,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	23 32,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	24 64,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	25
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	26 /* DER identifier */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	27 { 0x30, 0x31, 0x30, 0x0D, 0x06, 0x09, 0x60, 0x86,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	28 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x05,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	29 0x00, 0x04, 0x20 },
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	30 19,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	31
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	32 &sha256_init,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	33 &sha256_process,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	34 &sha256_done,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	35 &sha256_test
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	36 };
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	37
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	38 #ifdef SMALL_CODE
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	39 /* the K array */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	40 static const unsigned long K[64] = {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	41 0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL, 0x3956c25bUL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	42 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL, 0xd807aa98UL, 0x12835b01UL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	43 0x243185beUL, 0x550c7dc3UL, 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	44 0xc19bf174UL, 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	45 0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL, 0x983e5152UL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	46 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL, 0xc6e00bf3UL, 0xd5a79147UL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	47 0x06ca6351UL, 0x14292967UL, 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	48 0x53380d13UL, 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	49 0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL, 0xd192e819UL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	50 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL, 0x19a4c116UL, 0x1e376c08UL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	51 0x2748774cUL, 0x34b0bcb5UL, 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	52 0x682e6ff3UL, 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	53 0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	54 };
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	55 #endif
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	56
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	57 /* Various logical functions */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	58 #define Ch(x,y,z) (z ^ (x & (y ^ z)))
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	59 #define Maj(x,y,z) (((x \| y) & z) \| (x & y))
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	60 #define S(x, n) ROR((x),(n))
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	61 #define R(x, n) (((x)&0xFFFFFFFFUL)>>(n))
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	62 #define Sigma0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	63 #define Sigma1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	64 #define Gamma0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	65 #define Gamma1(x) (S(x, 17) ^ S(x, 19) ^ R(x, 10))
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	66
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	67 /* compress 512-bits */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	68 #ifdef CLEAN_STACK
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	69 static void _sha256_compress(hash_state * md, unsigned char *buf)
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	70 #else
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	71 static void sha256_compress(hash_state * md, unsigned char *buf)
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	72 #endif
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	73 {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	74 ulong32 S[8], W[64], t0, t1;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	75 #ifdef SMALL_CODE
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	76 ulong32 t;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	77 #endif
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	78 int i;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	79
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	80 /* copy state into S */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	81 for (i = 0; i < 8; i++) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	82 S[i] = md->sha256.state[i];
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	83 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	84
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	85 /* copy the state into 512-bits into W[0..15] */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	86 for (i = 0; i < 16; i++) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	87 LOAD32H(W[i], buf + (4*i));
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	88 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	89
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	90 /* fill W[16..63] */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	91 for (i = 16; i < 64; i++) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	92 W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	93 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	94
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	95 /* Compress */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	96 #ifdef SMALL_CODE
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	97 #define RND(a,b,c,d,e,f,g,h,i) \
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	98 t0 = h + Sigma1(e) + Ch(e, f, g) + K[i] + W[i]; \
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	99 t1 = Sigma0(a) + Maj(a, b, c); \
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	100 d += t0; \
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	101 h = t0 + t1;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	102
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	103 for (i = 0; i < 64; ++i) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	104 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],i);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	105 t = S[7]; S[7] = S[6]; S[6] = S[5]; S[5] = S[4];
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	106 S[4] = S[3]; S[3] = S[2]; S[2] = S[1]; S[1] = S[0]; S[0] = t;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	107 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	108 #else
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	109 #define RND(a,b,c,d,e,f,g,h,i,ki) \
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	110 t0 = h + Sigma1(e) + Ch(e, f, g) + ki + W[i]; \
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	111 t1 = Sigma0(a) + Maj(a, b, c); \
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	112 d += t0; \
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	113 h = t0 + t1;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	114
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	115 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],0,0x428a2f98);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	116 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],1,0x71374491);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	117 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],2,0xb5c0fbcf);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	118 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],3,0xe9b5dba5);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	119 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],4,0x3956c25b);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	120 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],5,0x59f111f1);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	121 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],6,0x923f82a4);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	122 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],7,0xab1c5ed5);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	123 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],8,0xd807aa98);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	124 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],9,0x12835b01);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	125 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],10,0x243185be);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	126 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],11,0x550c7dc3);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	127 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],12,0x72be5d74);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	128 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],13,0x80deb1fe);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	129 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],14,0x9bdc06a7);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	130 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],15,0xc19bf174);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	131 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],16,0xe49b69c1);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	132 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],17,0xefbe4786);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	133 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],18,0x0fc19dc6);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	134 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],19,0x240ca1cc);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	135 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],20,0x2de92c6f);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	136 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],21,0x4a7484aa);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	137 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],22,0x5cb0a9dc);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	138 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],23,0x76f988da);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	139 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],24,0x983e5152);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	140 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],25,0xa831c66d);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	141 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],26,0xb00327c8);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	142 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],27,0xbf597fc7);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	143 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],28,0xc6e00bf3);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	144 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],29,0xd5a79147);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	145 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],30,0x06ca6351);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	146 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],31,0x14292967);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	147 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],32,0x27b70a85);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	148 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],33,0x2e1b2138);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	149 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],34,0x4d2c6dfc);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	150 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],35,0x53380d13);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	151 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],36,0x650a7354);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	152 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],37,0x766a0abb);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	153 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],38,0x81c2c92e);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	154 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],39,0x92722c85);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	155 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],40,0xa2bfe8a1);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	156 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],41,0xa81a664b);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	157 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],42,0xc24b8b70);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	158 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],43,0xc76c51a3);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	159 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],44,0xd192e819);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	160 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],45,0xd6990624);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	161 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],46,0xf40e3585);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	162 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],47,0x106aa070);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	163 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],48,0x19a4c116);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	164 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],49,0x1e376c08);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	165 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],50,0x2748774c);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	166 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],51,0x34b0bcb5);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	167 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],52,0x391c0cb3);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	168 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],53,0x4ed8aa4a);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	169 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],54,0x5b9cca4f);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	170 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],55,0x682e6ff3);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	171 RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],56,0x748f82ee);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	172 RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],57,0x78a5636f);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	173 RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],58,0x84c87814);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	174 RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],59,0x8cc70208);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	175 RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],60,0x90befffa);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	176 RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],61,0xa4506ceb);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	177 RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],62,0xbef9a3f7);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	178 RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],63,0xc67178f2);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	179
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	180 #undef RND
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	181
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	182 #endif
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	183
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	184 /* feedback */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	185 for (i = 0; i < 8; i++) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	186 md->sha256.state[i] = md->sha256.state[i] + S[i];
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	187 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	188
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	189 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	190
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	191 #ifdef CLEAN_STACK
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	192 static void sha256_compress(hash_state * md, unsigned char *buf)
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	193 {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	194 _sha256_compress(md, buf);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	195 burn_stack(sizeof(ulong32) * 74);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	196 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	197 #endif
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	198
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	199 /* init the sha256 state */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	200 void sha256_init(hash_state * md)
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	201 {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	202 _ARGCHK(md != NULL);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	203
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	204 md->sha256.curlen = 0;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	205 md->sha256.length = 0;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	206 md->sha256.state[0] = 0x6A09E667UL;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	207 md->sha256.state[1] = 0xBB67AE85UL;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	208 md->sha256.state[2] = 0x3C6EF372UL;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	209 md->sha256.state[3] = 0xA54FF53AUL;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	210 md->sha256.state[4] = 0x510E527FUL;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	211 md->sha256.state[5] = 0x9B05688CUL;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	212 md->sha256.state[6] = 0x1F83D9ABUL;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	213 md->sha256.state[7] = 0x5BE0CD19UL;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	214 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	215
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	216 HASH_PROCESS(sha256_process, sha256_compress, sha256, 64)
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	217
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	218 int sha256_done(hash_state * md, unsigned char *hash)
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	219 {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	220 int i;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	221
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	222 _ARGCHK(md != NULL);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	223 _ARGCHK(hash != NULL);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	224
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	225 if (md->sha256.curlen >= sizeof(md->sha256.buf)) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	226 return CRYPT_INVALID_ARG;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	227 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	228
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	229
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	230 /* increase the length of the message */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	231 md->sha256.length += md->sha256.curlen * 8;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	232
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	233 /* append the '1' bit */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	234 md->sha256.buf[md->sha256.curlen++] = (unsigned char)0x80;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	235
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	236 /* if the length is currently above 56 bytes we append zeros
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	237 * then compress. Then we can fall back to padding zeros and length
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	238 * encoding like normal.
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	239 */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	240 if (md->sha256.curlen > 56) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	241 while (md->sha256.curlen < 64) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	242 md->sha256.buf[md->sha256.curlen++] = (unsigned char)0;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	243 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	244 sha256_compress(md, md->sha256.buf);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	245 md->sha256.curlen = 0;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	246 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	247
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	248 /* pad upto 56 bytes of zeroes */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	249 while (md->sha256.curlen < 56) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	250 md->sha256.buf[md->sha256.curlen++] = (unsigned char)0;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	251 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	252
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	253 /* store length */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	254 STORE64H(md->sha256.length, md->sha256.buf+56);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	255 sha256_compress(md, md->sha256.buf);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	256
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	257 /* copy output */
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	258 for (i = 0; i < 8; i++) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	259 STORE32H(md->sha256.state[i], hash+(4*i));
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	260 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	261 #ifdef CLEAN_STACK
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	262 zeromem(md, sizeof(hash_state));
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	263 #endif
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	264 return CRYPT_OK;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	265 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	266
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	267 int sha256_test(void)
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	268 {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	269 #ifndef LTC_TEST
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	270 return CRYPT_NOP;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	271 #else
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	272 static const struct {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	273 char *msg;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	274 unsigned char hash[32];
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	275 } tests[] = {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	276 { "abc",
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	277 { 0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	278 0x41, 0x41, 0x40, 0xde, 0x5d, 0xae, 0x22, 0x23,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	279 0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17, 0x7a, 0x9c,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	280 0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	281 },
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	282 { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	283 { 0x24, 0x8d, 0x6a, 0x61, 0xd2, 0x06, 0x38, 0xb8,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	284 0xe5, 0xc0, 0x26, 0x93, 0x0c, 0x3e, 0x60, 0x39,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	285 0xa3, 0x3c, 0xe4, 0x59, 0x64, 0xff, 0x21, 0x67,
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	286 0xf6, 0xec, 0xed, 0xd4, 0x19, 0xdb, 0x06, 0xc1 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	287 },
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	288 };
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	289
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	290 int i;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	291 unsigned char tmp[32];
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	292 hash_state md;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	293
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	294 for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	295 sha256_init(&md);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	296 sha256_process(&md, (unsigned char*)tests[i].msg, (unsigned long)strlen(tests[i].msg));
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	297 sha256_done(&md, tmp);
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	298 if (memcmp(tmp, tests[i].hash, 32) != 0) {
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	299 return CRYPT_FAIL_TESTVECTOR;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	300 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	301 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	302 return CRYPT_OK;
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	303 #endif
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	304 }
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	305
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	306 #ifdef SHA224
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	307 #include "sha224.c"
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	308 #endif
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	309
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	310 #endif
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	311
b939f2d4431e Include files accidentally zeroed when merging 0.96 release Matt Johnston <matt@ucc.asn.au> parents: 16 diff changeset	312

Mercurial > dropbear

annotate sha256.c @ 50:c61e66431001 libtomcrypt