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comparison src/ciphers/des.c @ 281:997e6f7dc01e libtomcrypt-dropbear

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Just import the Dropbear 0.47 libtomcrypt changes
author Matt Johnston <matt@ucc.asn.au>
date Wed, 08 Mar 2006 13:02:58 +0000
parents 59400faa4b44
children 999a5eb4ed10
comparison
equal deleted inserted replaced
280:59400faa4b44 281:997e6f7dc01e
18 #ifdef DES 18 #ifdef DES
19 19
20 #define EN0 0 20 #define EN0 0
21 #define DE1 1 21 #define DE1 1
22 22
23 #if 0
23 const struct ltc_cipher_descriptor des_desc = 24 const struct ltc_cipher_descriptor des_desc =
24 { 25 {
25 "des", 26 "des",
26 13, 27 13,
27 8, 8, 8, 16, 28 8, 8, 8, 16,
31 &des_test, 32 &des_test,
32 &des_done, 33 &des_done,
33 &des_keysize, 34 &des_keysize,
34 NULL, NULL, NULL, NULL, NULL, NULL, NULL 35 NULL, NULL, NULL, NULL, NULL, NULL, NULL
35 }; 36 };
37 #endif
36 38
37 const struct ltc_cipher_descriptor des3_desc = 39 const struct ltc_cipher_descriptor des3_desc =
38 { 40 {
39 "3des", 41 "3des",
40 14, 42 14,
1516 _desfunc(block, keys); 1518 _desfunc(block, keys);
1517 burn_stack(sizeof(ulong32) * 4 + sizeof(int)); 1519 burn_stack(sizeof(ulong32) * 4 + sizeof(int));
1518 } 1520 }
1519 #endif 1521 #endif
1520 1522
1523 #if 0
1521 /** 1524 /**
1522 Initialize the DES block cipher 1525 Initialize the DES block cipher
1523 @param key The symmetric key you wish to pass 1526 @param key The symmetric key you wish to pass
1524 @param keylen The key length in bytes 1527 @param keylen The key length in bytes
1525 @param num_rounds The number of rounds desired (0 for default) 1528 @param num_rounds The number of rounds desired (0 for default)
1542 deskey(key, EN0, skey->des.ek); 1545 deskey(key, EN0, skey->des.ek);
1543 deskey(key, DE1, skey->des.dk); 1546 deskey(key, DE1, skey->des.dk);
1544 1547
1545 return CRYPT_OK; 1548 return CRYPT_OK;
1546 } 1549 }
1550 #endif
1547 1551
1548 /** 1552 /**
1549 Initialize the 3DES-EDE block cipher 1553 Initialize the 3DES-EDE block cipher
1550 @param key The symmetric key you wish to pass 1554 @param key The symmetric key you wish to pass
1551 @param keylen The key length in bytes 1555 @param keylen The key length in bytes
1575 deskey(key+16, DE1, skey->des3.dk[0]); 1579 deskey(key+16, DE1, skey->des3.dk[0]);
1576 1580
1577 return CRYPT_OK; 1581 return CRYPT_OK;
1578 } 1582 }
1579 1583
1584 #if 0
1580 /** 1585 /**
1581 Encrypts a block of text with DES 1586 Encrypts a block of text with DES
1582 @param pt The input plaintext (8 bytes) 1587 @param pt The input plaintext (8 bytes)
1583 @param ct The output ciphertext (8 bytes) 1588 @param ct The output ciphertext (8 bytes)
1584 @param skey The key as scheduled 1589 @param skey The key as scheduled
1612 LOAD32H(work[1], ct+4); 1617 LOAD32H(work[1], ct+4);
1613 desfunc(work, skey->des.dk); 1618 desfunc(work, skey->des.dk);
1614 STORE32H(work[0],pt+0); 1619 STORE32H(work[0],pt+0);
1615 STORE32H(work[1],pt+4); 1620 STORE32H(work[1],pt+4);
1616 } 1621 }
1622 #endif
1617 1623
1618 /** 1624 /**
1619 Encrypts a block of text with 3DES-EDE 1625 Encrypts a block of text with 3DES-EDE
1620 @param pt The input plaintext (8 bytes) 1626 @param pt The input plaintext (8 bytes)
1621 @param ct The output ciphertext (8 bytes) 1627 @param ct The output ciphertext (8 bytes)
1656 desfunc(work, skey->des3.dk[2]); 1662 desfunc(work, skey->des3.dk[2]);
1657 STORE32H(work[0],pt+0); 1663 STORE32H(work[0],pt+0);
1658 STORE32H(work[1],pt+4); 1664 STORE32H(work[1],pt+4);
1659 } 1665 }
1660 1666
1667 #if 0
1661 /** 1668 /**
1662 Performs a self-test of the DES block cipher 1669 Performs a self-test of the DES block cipher
1663 @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled 1670 @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
1664 */ 1671 */
1665 int des_test(void) 1672 int des_test(void)
1802 } 1809 }
1803 1810
1804 return CRYPT_OK; 1811 return CRYPT_OK;
1805 #endif 1812 #endif
1806 } 1813 }
1814 #endif
1807 1815
1808 int des3_test(void) 1816 int des3_test(void)
1809 { 1817 {
1810 #ifndef LTC_TEST 1818 #ifndef LTC_TEST
1811 return CRYPT_NOP; 1819 return CRYPT_NOP;
1839 1847
1840 return CRYPT_OK; 1848 return CRYPT_OK;
1841 #endif 1849 #endif
1842 } 1850 }
1843 1851
1852 #if 0
1844 /** Terminate the context 1853 /** Terminate the context
1845 @param skey The scheduled key 1854 @param skey The scheduled key
1846 */ 1855 */
1847 void des_done(symmetric_key *skey) 1856 void des_done(symmetric_key *skey)
1848 { 1857 {
1849 } 1858 }
1859 #endif
1850 1860
1851 /** Terminate the context 1861 /** Terminate the context
1852 @param skey The scheduled key 1862 @param skey The scheduled key
1853 */ 1863 */
1854 void des3_done(symmetric_key *skey) 1864 void des3_done(symmetric_key *skey)
1855 { 1865 {
1856 } 1866 }
1857 1867
1858 1868
1869 #if 0
1859 /** 1870 /**
1860 Gets suitable key size 1871 Gets suitable key size
1861 @param keysize [in/out] The length of the recommended key (in bytes). This function will store the suitable size back in this variable. 1872 @param keysize [in/out] The length of the recommended key (in bytes). This function will store the suitable size back in this variable.
1862 @return CRYPT_OK if the input key size is acceptable. 1873 @return CRYPT_OK if the input key size is acceptable.
1863 */ 1874 */
1868 return CRYPT_INVALID_KEYSIZE; 1879 return CRYPT_INVALID_KEYSIZE;
1869 } 1880 }
1870 *keysize = 8; 1881 *keysize = 8;
1871 return CRYPT_OK; 1882 return CRYPT_OK;
1872 } 1883 }
1884 #endif
1873 1885
1874 /** 1886 /**
1875 Gets suitable key size 1887 Gets suitable key size
1876 @param keysize [in/out] The length of the recommended key (in bytes). This function will store the suitable size back in this variable. 1888 @param keysize [in/out] The length of the recommended key (in bytes). This function will store the suitable size back in this variable.
1877 @return CRYPT_OK if the input key size is acceptable. 1889 @return CRYPT_OK if the input key size is acceptable.