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comparison des.c @ 143:5d99163f7e32 libtomcrypt-orig

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import of libtomcrypt 0.99
author Matt Johnston <matt@ucc.asn.au>
date Sun, 19 Dec 2004 11:34:45 +0000
parents 7faae8f46238
children 8fc624ea2521
comparison
equal deleted inserted replaced
15:6362d3854bb4 143:5d99163f7e32
1375 *cook |= (*raw0 & 0x0000003fL) << 16; 1375 *cook |= (*raw0 & 0x0000003fL) << 16;
1376 *cook |= (*raw1 & 0x0003f000L) >> 4; 1376 *cook |= (*raw1 & 0x0003f000L) >> 4;
1377 *cook++ |= (*raw1 & 0x0000003fL); 1377 *cook++ |= (*raw1 & 0x0000003fL);
1378 } 1378 }
1379 1379
1380 memcpy(keyout, dough, sizeof dough); 1380 XMEMCPY(keyout, dough, sizeof dough);
1381 } 1381 }
1382 1382
1383 #ifdef CLEAN_STACK 1383 #ifdef CLEAN_STACK
1384 static void cookey(const ulong32 *raw1, ulong32 *keyout) 1384 static void cookey(const ulong32 *raw1, ulong32 *keyout)
1385 { 1385 {
1393 #else 1393 #else
1394 static void _desfunc(ulong32 *block, const ulong32 *keys) 1394 static void _desfunc(ulong32 *block, const ulong32 *keys)
1395 #endif 1395 #endif
1396 { 1396 {
1397 ulong32 work, right, leftt; 1397 ulong32 work, right, leftt;
1398 int round; 1398 int cur_round;
1399 1399
1400 leftt = block[0]; 1400 leftt = block[0];
1401 right = block[1]; 1401 right = block[1];
1402 1402
1403 #ifdef SMALL_CODE 1403 #ifdef SMALL_CODE
1437 leftt = (ulong32)(tmp >> 32); 1437 leftt = (ulong32)(tmp >> 32);
1438 right = (ulong32)(tmp & 0xFFFFFFFFUL); 1438 right = (ulong32)(tmp & 0xFFFFFFFFUL);
1439 } 1439 }
1440 #endif 1440 #endif
1441 1441
1442 for (round = 0; round < 8; round++) { 1442 for (cur_round = 0; cur_round < 8; cur_round++) {
1443 work = ROR(right, 4) ^ *keys++; 1443 work = ROR(right, 4) ^ *keys++;
1444 leftt ^= SP7[work & 0x3fL] 1444 leftt ^= SP7[work & 0x3fL]
1445 ^ SP5[(work >> 8) & 0x3fL] 1445 ^ SP5[(work >> 8) & 0x3fL]
1446 ^ SP3[(work >> 16) & 0x3fL] 1446 ^ SP3[(work >> 16) & 0x3fL]
1447 ^ SP1[(work >> 24) & 0x3fL]; 1447 ^ SP1[(work >> 24) & 0x3fL];
1532 int des3_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey) 1532 int des3_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
1533 { 1533 {
1534 _ARGCHK(key != NULL); 1534 _ARGCHK(key != NULL);
1535 _ARGCHK(skey != NULL); 1535 _ARGCHK(skey != NULL);
1536 1536
1537 if( num_rounds != 0 && num_rounds != 16) { 1537 if(num_rounds != 0 && num_rounds != 16) {
1538 return CRYPT_INVALID_ROUNDS; 1538 return CRYPT_INVALID_ROUNDS;
1539 } 1539 }
1540 1540
1541 if (keylen != 24) { 1541 if (keylen != 24) {
1542 return CRYPT_INVALID_KEYSIZE; 1542 return CRYPT_INVALID_KEYSIZE;