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annotate libtomcrypt/tests/pkcs_1_test.c @ 1659:d32bcb5c557d

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Add Ed25519 support (#91) * Add support for Ed25519 as a public key type Ed25519 is a elliptic curve signature scheme that offers better security than ECDSA and DSA and good performance. It may be used for both user and host keys. OpenSSH key import and fuzzer are not supported yet. Initially inspired by Peter Szabo. * Add curve25519 and ed25519 fuzzers * Add import and export of Ed25519 keys
author Vladislav Grishenko <themiron@users.noreply.github.com>
date Wed, 11 Mar 2020 21:09:45 +0500
parents 6dba84798cd5
children
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rev   line source
1471
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9 #include <tomcrypt_test.h>
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10
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11 #ifdef LTC_PKCS_1
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12
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13 #ifdef LTC_TEST_REAL_RAND
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14 #define LTC_TEST_RAND_SEED time(NULL)
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15 #else
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16 #define LTC_TEST_RAND_SEED 23
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17 #endif
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18
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19 int pkcs_1_test(void)
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20 {
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21 unsigned char buf[3][128];
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22 int res1, res2, res3, prng_idx, hash_idx;
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23 unsigned long x, y, l1, l2, l3, i1, i2, lparamlen, saltlen, modlen;
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24 static const unsigned char lparam[] = { 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 };
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25
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26 /* get hash/prng */
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27 hash_idx = find_hash("sha1");
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28 prng_idx = find_prng("yarrow");
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29
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30 if (hash_idx == -1 || prng_idx == -1) {
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31 fprintf(stderr, "pkcs_1 tests require sha1/yarrow");
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32 return 1;
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33 }
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34
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35 srand(LTC_TEST_RAND_SEED);
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36 /* do many tests */
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37 for (x = 0; x < 100; x++) {
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38 zeromem(buf, sizeof(buf));
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39
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40 /* make a dummy message (of random length) */
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41 l3 = (rand() & 31) + 8;
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42 for (y = 0; y < l3; y++) buf[0][y] = rand() & 255;
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43
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44 /* pick a random lparam len [0..16] */
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45 lparamlen = abs(rand()) % 17;
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46
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47 /* pick a random saltlen 0..16 */
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48 saltlen = abs(rand()) % 17;
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49
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50 /* PKCS #1 v2.0 supports modlens not multiple of 8 */
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51 modlen = 800 + (abs(rand()) % 224);
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52
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53 /* encode it */
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54 l1 = sizeof(buf[1]);
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55 DO(pkcs_1_oaep_encode(buf[0], l3, lparam, lparamlen, modlen, &yarrow_prng, prng_idx, hash_idx, buf[1], &l1));
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56
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57 /* decode it */
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58 l2 = sizeof(buf[2]);
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59 DO(pkcs_1_oaep_decode(buf[1], l1, lparam, lparamlen, modlen, hash_idx, buf[2], &l2, &res1));
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60
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61 if (res1 != 1 || l2 != l3 || memcmp(buf[2], buf[0], l3) != 0) {
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62 fprintf(stderr, "Outsize == %lu, should have been %lu, res1 = %d, lparamlen = %lu, msg contents follow.\n", l2, l3, res1, lparamlen);
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63 fprintf(stderr, "ORIGINAL:\n");
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64 for (x = 0; x < l3; x++) {
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65 fprintf(stderr, "%02x ", buf[0][x]);
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66 }
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67 fprintf(stderr, "\nRESULT:\n");
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68 for (x = 0; x < l2; x++) {
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69 fprintf(stderr, "%02x ", buf[2][x]);
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70 }
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71 fprintf(stderr, "\n\n");
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72 return 1;
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73 }
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74
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75 /* test PSS */
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76 l1 = sizeof(buf[1]);
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77 DO(pkcs_1_pss_encode(buf[0], l3, saltlen, &yarrow_prng, prng_idx, hash_idx, modlen, buf[1], &l1));
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78 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res1));
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79
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80 buf[0][i1 = abs(rand()) % l3] ^= 1;
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81 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res2));
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82
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83 buf[0][i1] ^= 1;
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84 buf[1][i2 = abs(rand()) % (l1 - 1)] ^= 1;
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85 pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res3);
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86 if (!(res1 == 1 && res2 == 0 && res3 == 0)) {
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87 fprintf(stderr, "PSS failed: %d, %d, %d, %lu, %lu\n", res1, res2, res3, l3, saltlen);
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88 return 1;
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89 }
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90 }
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91 return 0;
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92 }
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93
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94 #else
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95
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96 int pkcs_1_test(void)
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97 {
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98 return CRYPT_NOP;
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99 }
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100
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101 #endif
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102
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103
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104 /* ref: $Format:%D$ */
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105 /* git commit: $Format:%H$ */
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106 /* commit time: $Format:%ai$ */