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annotate testprof/pkcs_1_test.c @ 380:d5faf4814ddb libtomcrypt-orig libtomcrypt-1.16

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Update to LibTomCrypt 1.16
author Matt Johnston <matt@ucc.asn.au>
date Thu, 11 Jan 2007 02:22:00 +0000
parents 59400faa4b44
children
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59400faa4b44 Re-import libtomcrypt 1.05 for cleaner propagating.
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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, err;
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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 srand(time(NULL));
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22 /* do many tests */
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23 for (x = 0; x < 100; x++) {
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24 zeromem(buf, sizeof(buf));
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25
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26 /* make a dummy message (of random length) */
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27 l3 = (rand() & 31) + 8;
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28 for (y = 0; y < l3; y++) buf[0][y] = rand() & 255;
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29
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30 /* pick a random lparam len [0..16] */
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31 lparamlen = abs(rand()) % 17;
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32
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33 /* pick a random saltlen 0..16 */
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34 saltlen = abs(rand()) % 17;
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35
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36 /* PKCS #1 v2.0 supports modlens not multiple of 8 */
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37 modlen = 800 + (abs(rand()) % 224);
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38
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39 /* encode it */
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40 l1 = sizeof(buf[1]);
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41 DO(pkcs_1_oaep_encode(buf[0], l3, lparam, lparamlen, modlen, &yarrow_prng, prng_idx, hash_idx, buf[1], &l1));
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42
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43 /* decode it */
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44 l2 = sizeof(buf[2]);
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45 DO(pkcs_1_oaep_decode(buf[1], l1, lparam, lparamlen, modlen, hash_idx, buf[2], &l2, &res1));
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46
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47 if (res1 != 1 || l2 != l3 || memcmp(buf[2], buf[0], l3) != 0) {
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48 fprintf(stderr, "Outsize == %lu, should have been %lu, res1 = %d, lparamlen = %lu, msg contents follow.\n", l2, l3, res1, lparamlen);
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49 fprintf(stderr, "ORIGINAL:\n");
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50 for (x = 0; x < l3; x++) {
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51 fprintf(stderr, "%02x ", buf[0][x]);
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52 }
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53 fprintf(stderr, "\nRESULT:\n");
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54 for (x = 0; x < l2; x++) {
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55 fprintf(stderr, "%02x ", buf[2][x]);
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56 }
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57 fprintf(stderr, "\n\n");
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58 return 1;
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59 }
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60
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61 /* test PSS */
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62 l1 = sizeof(buf[1]);
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63 DO(pkcs_1_pss_encode(buf[0], l3, saltlen, &yarrow_prng, prng_idx, hash_idx, modlen, buf[1], &l1));
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64 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res1));
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65
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66 buf[0][i1 = abs(rand()) % l3] ^= 1;
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67 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res2));
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68
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69 buf[0][i1] ^= 1;
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70 buf[1][i2 = abs(rand()) % (l1 - 1)] ^= 1;
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71 pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res3);
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72 if (!(res1 == 1 && res2 == 0 && res3 == 0)) {
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73 fprintf(stderr, "PSS failed: %d, %d, %d, %lu, %lu\n", res1, res2, res3, l3, saltlen);
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74 return 1;
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75 }
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76 }
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77 return 0;
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78 }
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79
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80 #else
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81
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82 int pkcs_1_test(void)
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83 {
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84 fprintf(stderr, "NOP");
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85 return 0;
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86 }
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87
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88 #endif
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89
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90
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91 /* $Source: /cvs/libtom/libtomcrypt/testprof/pkcs_1_test.c,v $ */
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92 /* $Revision: 1.7 $ */
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93 /* $Date: 2006/11/30 03:30:45 $ */