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1 #include "test.h" |
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2 |
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3 int pkcs_1_test(void) |
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4 { |
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5 unsigned char buf[3][128]; |
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6 int res1, res2, res3, prng_idx, hash_idx; |
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7 unsigned long x, y, l1, l2, l3, i1, i2, lparamlen, saltlen, modlen; |
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8 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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9 |
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10 /* get hash/prng */ |
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11 hash_idx = find_hash("sha1"); |
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12 prng_idx = find_prng("yarrow"); |
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13 |
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14 if (hash_idx == -1 || prng_idx == -1) { |
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15 printf("pkcs_1 tests require sha1/yarrow"); |
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16 return 1; |
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17 } |
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18 |
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19 /* do many tests */ |
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20 for (x = 0; x < 10000; x++) { |
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21 zeromem(buf, sizeof(buf)); |
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22 |
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23 /* make a dummy message (of random length) */ |
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24 l3 = (rand() & 31) + 8; |
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25 for (y = 0; y < l3; y++) buf[0][y] = rand() & 255; |
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26 |
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27 /* random modulus len (v1.5 must be multiple of 8 though arbitrary sizes seem to work) */ |
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28 modlen = 800 + 8 * (abs(rand()) % 28); |
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29 |
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30 /* PKCS v1.5 testing (encryption) */ |
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31 l1 = sizeof(buf[1]); |
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32 DO(pkcs_1_v15_es_encode(buf[0], l3, modlen, &test_yarrow, prng_idx, buf[1], &l1)); |
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33 DO(pkcs_1_v15_es_decode(buf[1], l1, modlen, buf[2], l3, &res1)); |
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34 if (res1 != 1 || memcmp(buf[0], buf[2], l3)) { |
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35 printf("pkcs v1.5 encrypt failed %d, %lu, %lu ", res1, l1, l3); |
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36 return 1; |
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37 } |
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38 |
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39 /* PKCS v1.5 testing (signatures) */ |
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40 l1 = sizeof(buf[1]); |
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41 DO(pkcs_1_v15_sa_encode(buf[0], l3, hash_idx, modlen, buf[1], &l1)); |
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42 DO(pkcs_1_v15_sa_decode(buf[0], l3, buf[1], l1, hash_idx, modlen, &res1)); |
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43 buf[0][i1 = abs(rand()) % l3] ^= 1; |
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44 DO(pkcs_1_v15_sa_decode(buf[0], l3, buf[1], l1, hash_idx, modlen, &res2)); |
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45 buf[0][i1] ^= 1; |
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46 buf[1][i2 = abs(rand()) % l1] ^= 1; |
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47 DO(pkcs_1_v15_sa_decode(buf[0], l3, buf[1], l1, hash_idx, modlen, &res3)); |
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48 |
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49 if (!(res1 == 1 && res2 == 0 && res3 == 0)) { |
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50 printf("pkcs v1.5 sign failed %d %d %d ", res1, res2, res3); |
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51 return 1; |
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52 } |
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53 |
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54 /* pick a random lparam len [0..16] */ |
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55 lparamlen = abs(rand()) % 17; |
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56 |
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57 /* pick a random saltlen 0..16 */ |
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58 saltlen = abs(rand()) % 17; |
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59 |
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60 /* PKCS #1 v2.0 supports modlens not multiple of 8 */ |
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61 modlen = 800 + (abs(rand()) % 224); |
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62 |
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63 /* encode it */ |
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64 l1 = sizeof(buf[1]); |
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65 DO(pkcs_1_oaep_encode(buf[0], l3, lparam, lparamlen, modlen, &test_yarrow, prng_idx, hash_idx, buf[1], &l1)); |
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66 |
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67 /* decode it */ |
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68 l2 = sizeof(buf[2]); |
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69 DO(pkcs_1_oaep_decode(buf[1], l1, lparam, lparamlen, modlen, hash_idx, buf[2], &l2, &res1)); |
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70 |
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71 if (res1 != 1 || l2 != l3 || memcmp(buf[2], buf[0], l3) != 0) { |
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72 printf("Outsize == %lu, should have been %lu, res1 = %d, lparamlen = %lu, msg contents follow.\n", l2, l3, res1, lparamlen); |
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73 printf("ORIGINAL:\n"); |
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74 for (x = 0; x < l3; x++) { |
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75 printf("%02x ", buf[0][x]); |
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76 } |
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77 printf("\nRESULT:\n"); |
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78 for (x = 0; x < l2; x++) { |
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79 printf("%02x ", buf[2][x]); |
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80 } |
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81 printf("\n\n"); |
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82 return 1; |
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83 } |
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84 |
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85 /* test PSS */ |
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86 l1 = sizeof(buf[1]); |
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87 DO(pkcs_1_pss_encode(buf[0], l3, saltlen, &test_yarrow, prng_idx, hash_idx, modlen, buf[1], &l1)); |
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88 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res1)); |
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89 |
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90 buf[0][i1 = abs(rand()) % l3] ^= 1; |
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91 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res2)); |
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92 |
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93 buf[0][i1] ^= 1; |
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94 buf[1][i2 = abs(rand()) % l1] ^= 1; |
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95 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res3)); |
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96 |
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97 if (!(res1 == 1 && res2 == 0 && res3 == 0)) { |
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98 printf("PSS failed: %d, %d, %d, %lu, %lu\n", res1, res2, res3, l3, saltlen); |
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99 return 1; |
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100 } |
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101 } |
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102 return 0; |
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103 } |
