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annotate libtomcrypt/tests/pkcs_1_test.c @ 1857:6022df862942

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Use DSCP for IP QoS traffic classes The previous TOS values are deprecated and not used by modern traffic classifiers. This sets AF21 for "interactive" traffic (with a tty). Non-tty traffic sets AF11 - that indicates high throughput but is not lowest priority (which would be CS1 or LE). This differs from the CS1 used by OpenSSH, it lets interactive git over SSH have higher priority than background least effort traffic. Dropbear's settings here should be suitable with the diffservs used by CAKE qdisc.
author Matt Johnston <matt@ucc.asn.au>
date Tue, 25 Jan 2022 17:32:20 +0800
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: $Format:%ai$ */