1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis */
2 /* SPDX-License-Identifier: Unlicense */
3 #include "tomcrypt_private.h"
4
5 /**
6 @file ctr_test.c
7 CTR implementation, Tests again RFC 3686, Tom St Denis
8 */
9
10 #ifdef LTC_CTR_MODE
11
ctr_test(void)12 int ctr_test(void)
13 {
14 #ifdef LTC_NO_TEST
15 return CRYPT_NOP;
16 #else
17 static const struct {
18 int keylen, msglen;
19 unsigned char key[32], IV[16], pt[64], ct[64];
20 } tests[] = {
21 /* 128-bit key, 16-byte pt */
22 {
23 16, 16,
24 {0xAE,0x68,0x52,0xF8,0x12,0x10,0x67,0xCC,0x4B,0xF7,0xA5,0x76,0x55,0x77,0xF3,0x9E },
25 {0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
26 {0x53,0x69,0x6E,0x67,0x6C,0x65,0x20,0x62,0x6C,0x6F,0x63,0x6B,0x20,0x6D,0x73,0x67 },
27 {0xE4,0x09,0x5D,0x4F,0xB7,0xA7,0xB3,0x79,0x2D,0x61,0x75,0xA3,0x26,0x13,0x11,0xB8 },
28 },
29
30 /* 128-bit key, 36-byte pt */
31 {
32 16, 36,
33 {0x76,0x91,0xBE,0x03,0x5E,0x50,0x20,0xA8,0xAC,0x6E,0x61,0x85,0x29,0xF9,0xA0,0xDC },
34 {0x00,0xE0,0x01,0x7B,0x27,0x77,0x7F,0x3F,0x4A,0x17,0x86,0xF0,0x00,0x00,0x00,0x00 },
35 {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
36 0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
37 0x20,0x21,0x22,0x23},
38 {0xC1,0xCF,0x48,0xA8,0x9F,0x2F,0xFD,0xD9,0xCF,0x46,0x52,0xE9,0xEF,0xDB,0x72,0xD7,
39 0x45,0x40,0xA4,0x2B,0xDE,0x6D,0x78,0x36,0xD5,0x9A,0x5C,0xEA,0xAE,0xF3,0x10,0x53,
40 0x25,0xB2,0x07,0x2F },
41 },
42 };
43 int idx, err, x;
44 unsigned char buf[64];
45 symmetric_CTR ctr;
46
47 /* AES can be under rijndael or aes... try to find it */
48 if ((idx = find_cipher("aes")) == -1) {
49 if ((idx = find_cipher("rijndael")) == -1) {
50 return CRYPT_NOP;
51 }
52 }
53
54 for (x = 0; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) {
55 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) {
56 return err;
57 }
58 if ((err = ctr_encrypt(tests[x].pt, buf, tests[x].msglen, &ctr)) != CRYPT_OK) {
59 return err;
60 }
61 ctr_done(&ctr);
62 if (compare_testvector(buf, tests[x].msglen, tests[x].ct, tests[x].msglen, "CTR", x)) {
63 return CRYPT_FAIL_TESTVECTOR;
64 }
65 }
66 return CRYPT_OK;
67 #endif
68 }
69
70 #endif
71
72
73
74