dropbear: skipjack.c annotate

annotate skipjack.c @ 0:d7da3b1e1540 libtomcrypt

put back the 0.95 makefile which was inadvertently merged over

author	Matt Johnston <matt@ucc.asn.au>
date	Mon, 31 May 2004 18:21:40 +0000
parents
children

rev	line source
0 d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 *
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 * LibTomCrypt is a library that provides various cryptographic
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 * algorithms in a highly modular and flexible manner.
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 *
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 * The library is free for all purposes without any express
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 * guarantee it works.
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 *
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 * Tom St Denis, [email protected], http://libtomcrypt.org
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 /* Skipjack Implementation by Tom St Denis */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 #include "mycrypt.h"
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 #ifdef SKIPJACK
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 const struct _cipher_descriptor skipjack_desc =
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 "skipjack",
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 17,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 10, 10, 8, 32,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 &skipjack_setup,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 &skipjack_ecb_encrypt,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24 &skipjack_ecb_decrypt,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 &skipjack_test,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 &skipjack_keysize
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 };
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 static const unsigned char sbox[256] = {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 0xa3,0xd7,0x09,0x83,0xf8,0x48,0xf6,0xf4,0xb3,0x21,0x15,0x78,0x99,0xb1,0xaf,0xf9,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 0xe7,0x2d,0x4d,0x8a,0xce,0x4c,0xca,0x2e,0x52,0x95,0xd9,0x1e,0x4e,0x38,0x44,0x28,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 0x0a,0xdf,0x02,0xa0,0x17,0xf1,0x60,0x68,0x12,0xb7,0x7a,0xc3,0xe9,0xfa,0x3d,0x53,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 0x96,0x84,0x6b,0xba,0xf2,0x63,0x9a,0x19,0x7c,0xae,0xe5,0xf5,0xf7,0x16,0x6a,0xa2,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 0x39,0xb6,0x7b,0x0f,0xc1,0x93,0x81,0x1b,0xee,0xb4,0x1a,0xea,0xd0,0x91,0x2f,0xb8,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 0x55,0xb9,0xda,0x85,0x3f,0x41,0xbf,0xe0,0x5a,0x58,0x80,0x5f,0x66,0x0b,0xd8,0x90,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 0x35,0xd5,0xc0,0xa7,0x33,0x06,0x65,0x69,0x45,0x00,0x94,0x56,0x6d,0x98,0x9b,0x76,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 0x97,0xfc,0xb2,0xc2,0xb0,0xfe,0xdb,0x20,0xe1,0xeb,0xd6,0xe4,0xdd,0x47,0x4a,0x1d,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 0x42,0xed,0x9e,0x6e,0x49,0x3c,0xcd,0x43,0x27,0xd2,0x07,0xd4,0xde,0xc7,0x67,0x18,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 0x89,0xcb,0x30,0x1f,0x8d,0xc6,0x8f,0xaa,0xc8,0x74,0xdc,0xc9,0x5d,0x5c,0x31,0xa4,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 0x70,0x88,0x61,0x2c,0x9f,0x0d,0x2b,0x87,0x50,0x82,0x54,0x64,0x26,0x7d,0x03,0x40,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 0x34,0x4b,0x1c,0x73,0xd1,0xc4,0xfd,0x3b,0xcc,0xfb,0x7f,0xab,0xe6,0x3e,0x5b,0xa5,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 0xad,0x04,0x23,0x9c,0x14,0x51,0x22,0xf0,0x29,0x79,0x71,0x7e,0xff,0x8c,0x0e,0xe2,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43 0x0c,0xef,0xbc,0x72,0x75,0x6f,0x37,0xa1,0xec,0xd3,0x8e,0x62,0x8b,0x86,0x10,0xe8,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 0x08,0x77,0x11,0xbe,0x92,0x4f,0x24,0xc5,0x32,0x36,0x9d,0xcf,0xf3,0xa6,0xbb,0xac,
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 0x5e,0x6c,0xa9,0x13,0x57,0x25,0xb5,0xe3,0xbd,0xa8,0x3a,0x01,0x05,0x59,0x2a,0x46
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46 };
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 /* simple x + 1 (mod 10) in one step. */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49 static const int keystep[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 /* simple x - 1 (mod 10) in one step */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 static const int ikeystep[] = { 9, 0, 1, 2, 3, 4, 5, 6, 7, 8 };
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 int skipjack_setup(const unsigned char key, int keylen, int num_rounds, symmetric_key skey)
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56 int x;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58 _ARGCHK(key != NULL);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59 _ARGCHK(skey != NULL);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61 if (keylen != 10) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62 return CRYPT_INVALID_KEYSIZE;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65 if (num_rounds != 32 && num_rounds != 0) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 return CRYPT_INVALID_ROUNDS;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 /* make sure the key is in range for platforms where CHAR_BIT != 8 */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 for (x = 0; x < 10; x++) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 skey->skipjack.key[x] = key[x] & 255;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 return CRYPT_OK;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 #define RULE_A \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 tmp = g_func(w1, &kp, key->skipjack.key); \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79 w1 = tmp ^ w4 ^ x; \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80 w4 = w3; w3 = w2; \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81 w2 = tmp;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83 #define RULE_B \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84 tmp = g_func(w1, &kp, key->skipjack.key); \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 tmp1 = w4; w4 = w3; \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 w3 = w1 ^ w2 ^ x; \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 w1 = tmp1; w2 = tmp;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	88
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	89 #define RULE_A1 \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90 tmp = w1 ^ w2 ^ x; \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91 w1 = ig_func(w2, &kp, key->skipjack.key); \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 w2 = w3; w3 = w4; w4 = tmp;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	94 #define RULE_B1 \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 tmp = ig_func(w2, &kp, key->skipjack.key); \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96 w2 = tmp ^ w3 ^ x; \
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 w3 = w4; w4 = w1; w1 = tmp;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 static unsigned g_func(unsigned w, int kp, unsigned char key)
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100 {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101 unsigned char g1,g2;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103 g1 = (w >> 8) & 255; g2 = w & 255;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104 g1 ^= sbox[g2^key[kp]]; kp = keystep[*kp];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105 g2 ^= sbox[g1^key[kp]]; kp = keystep[*kp];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 g1 ^= sbox[g2^key[kp]]; kp = keystep[*kp];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107 g2 ^= sbox[g1^key[kp]]; kp = keystep[*kp];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 return ((unsigned)g1<<8)\|(unsigned)g2;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 static unsigned ig_func(unsigned w, int kp, unsigned char key)
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112 {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113 unsigned char g1,g2;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115 g1 = (w >> 8) & 255; g2 = w & 255;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 kp = ikeystep[kp]; g2 ^= sbox[g1^key[*kp]];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117 kp = ikeystep[kp]; g1 ^= sbox[g2^key[*kp]];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	118 kp = ikeystep[kp]; g2 ^= sbox[g1^key[*kp]];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	119 kp = ikeystep[kp]; g1 ^= sbox[g2^key[*kp]];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120 return ((unsigned)g1<<8)\|(unsigned)g2;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	121 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	122
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123 #ifdef CLEAN_STACK
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124 static void _skipjack_ecb_encrypt(const unsigned char pt, unsigned char ct, symmetric_key *key)
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 #else
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126 void skipjack_ecb_encrypt(const unsigned char pt, unsigned char ct, symmetric_key *key)
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 #endif
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 unsigned w1,w2,w3,w4,tmp,tmp1;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130 int x, kp;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 _ARGCHK(pt != NULL);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 _ARGCHK(ct != NULL);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 _ARGCHK(key != NULL);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 /* load block */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 w1 = ((unsigned)pt[0]<<8)\|pt[1];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138 w2 = ((unsigned)pt[2]<<8)\|pt[3];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139 w3 = ((unsigned)pt[4]<<8)\|pt[5];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 w4 = ((unsigned)pt[6]<<8)\|pt[7];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 /* 8 rounds of RULE A */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143 for (x = 1, kp = 0; x < 9; x++) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 RULE_A;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147 /* 8 rounds of RULE B */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 for (; x < 17; x++) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 RULE_B;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152 /* 8 rounds of RULE A */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153 for (; x < 25; x++) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154 RULE_A;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	155 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 /* 8 rounds of RULE B */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 for (; x < 33; x++) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	159 RULE_B;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162 /* store block */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	163 ct[0] = (w1>>8)&255; ct[1] = w1&255;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	164 ct[2] = (w2>>8)&255; ct[3] = w2&255;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 ct[4] = (w3>>8)&255; ct[5] = w3&255;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	166 ct[6] = (w4>>8)&255; ct[7] = w4&255;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	167 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	168
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	169 #ifdef CLEAN_STACK
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170 void skipjack_ecb_encrypt(const unsigned char pt, unsigned char ct, symmetric_key *key)
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171 {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172 _skipjack_ecb_encrypt(pt, ct, key);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	173 burn_stack(sizeof(unsigned) * 8 + sizeof(int) * 2);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	174 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	175 #endif
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	176
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	177 #ifdef CLEAN_STACK
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	178 static void _skipjack_ecb_decrypt(const unsigned char ct, unsigned char pt, symmetric_key *key)
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	179 #else
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	180 void skipjack_ecb_decrypt(const unsigned char ct, unsigned char pt, symmetric_key *key)
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	181 #endif
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182 {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183 unsigned w1,w2,w3,w4,tmp;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184 int x, kp;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 _ARGCHK(pt != NULL);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	187 _ARGCHK(ct != NULL);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188 _ARGCHK(key != NULL);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	190 /* load block */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191 w1 = ((unsigned)ct[0]<<8)\|ct[1];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192 w2 = ((unsigned)ct[2]<<8)\|ct[3];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193 w3 = ((unsigned)ct[4]<<8)\|ct[5];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194 w4 = ((unsigned)ct[6]<<8)\|ct[7];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	195
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 /* 8 rounds of RULE B^-1
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	198 Note the value "kp = 8" comes from "kp = (32 * 4) mod 10" where 32*4 is 128 which mod 10 is 8
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199 */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 for (x = 32, kp = 8; x > 24; x--) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201 RULE_B1;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204 /* 8 rounds of RULE A^-1 */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205 for (; x > 16; x--) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206 RULE_A1;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	207 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	208
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210 /* 8 rounds of RULE B^-1 */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211 for (; x > 8; x--) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	212 RULE_B1;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	214
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	215 /* 8 rounds of RULE A^-1 */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216 for (; x > 0; x--) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	217 RULE_A1;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	218 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220 /* store block */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	221 pt[0] = (w1>>8)&255; pt[1] = w1&255;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222 pt[2] = (w2>>8)&255; pt[3] = w2&255;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223 pt[4] = (w3>>8)&255; pt[5] = w3&255;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224 pt[6] = (w4>>8)&255; pt[7] = w4&255;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227 #ifdef CLEAN_STACK
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	228 void skipjack_ecb_decrypt(const unsigned char ct, unsigned char pt, symmetric_key *key)
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	229 {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	230 _skipjack_ecb_decrypt(ct, pt, key);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231 burn_stack(sizeof(unsigned) * 7 + sizeof(int) * 2);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	233 #endif
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	234
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	235 int skipjack_test(void)
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	236 {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237 #ifndef LTC_TEST
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	238 return CRYPT_NOP;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239 #else
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	240 static const struct {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	241 unsigned char key[10], pt[8], ct[8];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	242 } tests[] = {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	243 {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244 { 0x00, 0x99, 0x88, 0x77, 0x66, 0x55, 0x44, 0x33, 0x22, 0x11 },
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	245 { 0x33, 0x22, 0x11, 0x00, 0xdd, 0xcc, 0xbb, 0xaa },
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	246 { 0x25, 0x87, 0xca, 0xe2, 0x7a, 0x12, 0xd3, 0x00 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	247 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	248 };
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	249 unsigned char buf[2][8];
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	250 int x, y, err;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	251 symmetric_key key;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	252
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	253 for (x = 0; x < (int)(sizeof(tests) / sizeof(tests[0])); x++) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	254 /* setup key */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	255 if ((err = skipjack_setup(tests[x].key, 10, 0, &key)) != CRYPT_OK) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	256 return err;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	257 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	258
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	259 /* encrypt and decrypt */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	260 skipjack_ecb_encrypt(tests[x].pt, buf[0], &key);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	261 skipjack_ecb_decrypt(buf[0], buf[1], &key);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	262
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	263 /* compare */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	264 if (memcmp(buf[0], tests[x].ct, 8) != 0 \|\| memcmp(buf[1], tests[x].pt, 8) != 0) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	265 return CRYPT_FAIL_TESTVECTOR;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	266 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	267
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	268 /* now see if we can encrypt all zero bytes 1000 times, decrypt and come back where we started */
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	269 for (y = 0; y < 8; y++) buf[0][y] = 0;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	270 for (y = 0; y < 1000; y++) skipjack_ecb_encrypt(buf[0], buf[0], &key);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	271 for (y = 0; y < 1000; y++) skipjack_ecb_decrypt(buf[0], buf[0], &key);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	272 for (y = 0; y < 8; y++) if (buf[0][y] != 0) return CRYPT_FAIL_TESTVECTOR;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	273 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	274
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	275 return CRYPT_OK;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	276 #endif
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	277 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	278
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	279 int skipjack_keysize(int *desired_keysize)
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281 _ARGCHK(desired_keysize != NULL);
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	282 if (*desired_keysize < 10) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	283 return CRYPT_INVALID_KEYSIZE;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284 } else if (*desired_keysize > 10) {
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 *desired_keysize = 10;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	287 return CRYPT_OK;
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	288 }
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290 #endif

Mercurial > dropbear

annotate skipjack.c @ 0:d7da3b1e1540 libtomcrypt