1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis 2 * 3 * LibTomCrypt is a library that provides various cryptographic 4 * algorithms in a highly modular and flexible manner. 5 * 6 * The library is free for all purposes without any express 7 * guarantee it works. 8 * 9 * Tom St Denis, tomstdenis (at) gmail.com, http://libtomcrypt.com 10 */ 11 #include "tomcrypt.h" 12 13 /** 14 @file ctr_test.c 15 CTR implementation, Tests again RFC 3686, Tom St Denis 16 */ 17 18 #ifdef LTC_CTR_MODE 19 20 int ctr_test(void) 21 { 22 #ifdef LTC_NO_TEST 23 return CRYPT_NOP; 24 #else 25 static const struct { 26 int keylen, msglen; 27 unsigned char key[32], IV[16], pt[64], ct[64]; 28 } tests[] = { 29 /* 128-bit key, 16-byte pt */ 30 { 31 16, 16, 32 {0xAE,0x68,0x52,0xF8,0x12,0x10,0x67,0xCC,0x4B,0xF7,0xA5,0x76,0x55,0x77,0xF3,0x9E }, 33 {0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 34 {0x53,0x69,0x6E,0x67,0x6C,0x65,0x20,0x62,0x6C,0x6F,0x63,0x6B,0x20,0x6D,0x73,0x67 }, 35 {0xE4,0x09,0x5D,0x4F,0xB7,0xA7,0xB3,0x79,0x2D,0x61,0x75,0xA3,0x26,0x13,0x11,0xB8 }, 36 }, 37 38 /* 128-bit key, 36-byte pt */ 39 { 40 16, 36, 41 {0x76,0x91,0xBE,0x03,0x5E,0x50,0x20,0xA8,0xAC,0x6E,0x61,0x85,0x29,0xF9,0xA0,0xDC }, 42 {0x00,0xE0,0x01,0x7B,0x27,0x77,0x7F,0x3F,0x4A,0x17,0x86,0xF0,0x00,0x00,0x00,0x00 }, 43 {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F, 44 0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F, 45 0x20,0x21,0x22,0x23}, 46 {0xC1,0xCF,0x48,0xA8,0x9F,0x2F,0xFD,0xD9,0xCF,0x46,0x52,0xE9,0xEF,0xDB,0x72,0xD7, 47 0x45,0x40,0xA4,0x2B,0xDE,0x6D,0x78,0x36,0xD5,0x9A,0x5C,0xEA,0xAE,0xF3,0x10,0x53, 48 0x25,0xB2,0x07,0x2F }, 49 }, 50 }; 51 int idx, err, x; 52 unsigned char buf[64]; 53 symmetric_CTR ctr; 54 55 /* AES can be under rijndael or aes... try to find it */ 56 if ((idx = find_cipher("aes")) == -1) { 57 if ((idx = find_cipher("rijndael")) == -1) { 58 return CRYPT_NOP; 59 } 60 } 61 62 for (x = 0; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) { 63 if ((err = ctr_start(idx, tests[x].IV, tests[x].key, tests[x].keylen, 0, CTR_COUNTER_BIG_ENDIAN|LTC_CTR_RFC3686, &ctr)) != CRYPT_OK) { 64 return err; 65 } 66 if ((err = ctr_encrypt(tests[x].pt, buf, tests[x].msglen, &ctr)) != CRYPT_OK) { 67 return err; 68 } 69 ctr_done(&ctr); 70 if (XMEMCMP(buf, tests[x].ct, tests[x].msglen)) { 71 return CRYPT_FAIL_TESTVECTOR; 72 } 73 } 74 return CRYPT_OK; 75 #endif 76 } 77 78 #endif 79 80 /* $Source: /cvs/libtom/libtomcrypt/src/modes/ctr/ctr_test.c,v $ */ 81 /* $Revision: 1.3 $ */ 82 /* $Date: 2006/11/05 02:06:49 $ */ 83 84 85 86
