Mercurial > dropbear

annotate testprof/pkcs_1_test.c @ 222:36160290a1b2 libtomcrypt LTC_DB_0.46

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* change include path of options.h * don't use the constant ROL/ROR operations, since compilers seem to have problems
author Matt Johnston <matt@ucc.asn.au>
date Fri, 08 Jul 2005 19:13:24 +0000
parents 39d5d58461d6
children
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1 #include <tomcrypt_test.h>
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2
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3 #ifdef PKCS_1
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4
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5 int pkcs_1_test(void)
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6 {
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7 unsigned char buf[3][128];
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8 int res1, res2, res3, prng_idx, hash_idx;
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9 unsigned long x, y, l1, l2, l3, i1, i2, lparamlen, saltlen, modlen;
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10 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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11
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12 /* get hash/prng */
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13 hash_idx = find_hash("sha1");
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14 prng_idx = find_prng("yarrow");
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15
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16 if (hash_idx == -1 || prng_idx == -1) {
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17 fprintf(stderr, "pkcs_1 tests require sha1/yarrow");
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18 return 1;
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19 }
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20
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21 /* do many tests */
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22 for (x = 0; x < 100; x++) {
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23 zeromem(buf, sizeof(buf));
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24
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25 /* make a dummy message (of random length) */
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26 l3 = (rand() & 31) + 8;
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27 for (y = 0; y < l3; y++) buf[0][y] = rand() & 255;
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28
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29 /* random modulus len (v1.5 must be multiple of 8 though arbitrary sizes seem to work) */
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30 modlen = 800 + 8 * (abs(rand()) % 28);
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31
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32 /* pick a random lparam len [0..16] */
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33 lparamlen = abs(rand()) % 17;
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34
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35 /* pick a random saltlen 0..16 */
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36 saltlen = abs(rand()) % 17;
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37
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38 /* PKCS #1 v2.0 supports modlens not multiple of 8 */
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39 modlen = 800 + (abs(rand()) % 224);
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40
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41 /* encode it */
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42 l1 = sizeof(buf[1]);
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43 DO(pkcs_1_oaep_encode(buf[0], l3, lparam, lparamlen, modlen, &yarrow_prng, prng_idx, hash_idx, buf[1], &l1));
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44
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45 /* decode it */
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46 l2 = sizeof(buf[2]);
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47 DO(pkcs_1_oaep_decode(buf[1], l1, lparam, lparamlen, modlen, hash_idx, buf[2], &l2, &res1));
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48
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49 if (res1 != 1 || l2 != l3 || memcmp(buf[2], buf[0], l3) != 0) {
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50 fprintf(stderr, "Outsize == %lu, should have been %lu, res1 = %d, lparamlen = %lu, msg contents follow.\n", l2, l3, res1, lparamlen);
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51 fprintf(stderr, "ORIGINAL:\n");
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52 for (x = 0; x < l3; x++) {
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53 fprintf(stderr, "%02x ", buf[0][x]);
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54 }
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55 fprintf(stderr, "\nRESULT:\n");
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56 for (x = 0; x < l2; x++) {
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57 fprintf(stderr, "%02x ", buf[2][x]);
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58 }
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59 fprintf(stderr, "\n\n");
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60 return 1;
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61 }
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62
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63 /* test PSS */
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64 l1 = sizeof(buf[1]);
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65 DO(pkcs_1_pss_encode(buf[0], l3, saltlen, &yarrow_prng, prng_idx, hash_idx, modlen, buf[1], &l1));
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66 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res1));
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67
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68 buf[0][i1 = abs(rand()) % l3] ^= 1;
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69 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res2));
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70
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71 buf[0][i1] ^= 1;
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72 buf[1][i2 = abs(rand()) % l1] ^= 1;
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73 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res3));
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74
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75 if (!(res1 == 1 && res2 == 0 && res3 == 0)) {
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76 fprintf(stderr, "PSS failed: %d, %d, %d, %lu, %lu\n", res1, res2, res3, l3, saltlen);
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77 return 1;
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78 }
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79 }
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80 return 0;
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81 }
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82
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83 #else
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84
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85 int pkcs_1_test(void)
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86 {
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87 fprintf(stderr, "NOP");
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88 return 0;
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89 }
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90
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91 #endif
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92
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93
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94 /* $Source: /cvs/libtom/libtomcrypt/testprof/pkcs_1_test.c,v $ */
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95 /* $Revision: 1.6 $ */
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96 /* $Date: 2005/05/21 12:51:25 $ */