1 #include <tomcrypt_test.h> 2 3 #ifdef PKCS_1 4 5 int pkcs_1_test(void) 6 { 7 unsigned char buf[3][128]; 8 int res1, res2, res3, prng_idx, hash_idx, err; 9 unsigned long x, y, l1, l2, l3, i1, i2, lparamlen, saltlen, modlen; 10 static const unsigned char lparam[] = { 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 }; 11 12 /* get hash/prng */ 13 hash_idx = find_hash("sha1"); 14 prng_idx = find_prng("yarrow"); 15 16 if (hash_idx == -1 || prng_idx == -1) { 17 fprintf(stderr, "pkcs_1 tests require sha1/yarrow"); 18 return 1; 19 } 20 21 srand(time(NULL)); 22 /* do many tests */ 23 for (x = 0; x < 100; x++) { 24 zeromem(buf, sizeof(buf)); 25 26 /* make a dummy message (of random length) */ 27 l3 = (rand() & 31) + 8; 28 for (y = 0; y < l3; y++) buf[0][y] = rand() & 255; 29 30 /* pick a random lparam len [0..16] */ 31 lparamlen = abs(rand()) % 17; 32 33 /* pick a random saltlen 0..16 */ 34 saltlen = abs(rand()) % 17; 35 36 /* PKCS #1 v2.0 supports modlens not multiple of 8 */ 37 modlen = 800 + (abs(rand()) % 224); 38 39 /* encode it */ 40 l1 = sizeof(buf[1]); 41 DO(pkcs_1_oaep_encode(buf[0], l3, lparam, lparamlen, modlen, &yarrow_prng, prng_idx, hash_idx, buf[1], &l1)); 42 43 /* decode it */ 44 l2 = sizeof(buf[2]); 45 DO(pkcs_1_oaep_decode(buf[1], l1, lparam, lparamlen, modlen, hash_idx, buf[2], &l2, &res1)); 46 47 if (res1 != 1 || l2 != l3 || memcmp(buf[2], buf[0], l3) != 0) { 48 fprintf(stderr, "Outsize == %lu, should have been %lu, res1 = %d, lparamlen = %lu, msg contents follow.\n", l2, l3, res1, lparamlen); 49 fprintf(stderr, "ORIGINAL:\n"); 50 for (x = 0; x < l3; x++) { 51 fprintf(stderr, "%02x ", buf[0][x]); 52 } 53 fprintf(stderr, "\nRESULT:\n"); 54 for (x = 0; x < l2; x++) { 55 fprintf(stderr, "%02x ", buf[2][x]); 56 } 57 fprintf(stderr, "\n\n"); 58 return 1; 59 } 60 61 /* test PSS */ 62 l1 = sizeof(buf[1]); 63 DO(pkcs_1_pss_encode(buf[0], l3, saltlen, &yarrow_prng, prng_idx, hash_idx, modlen, buf[1], &l1)); 64 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res1)); 65 66 buf[0][i1 = abs(rand()) % l3] ^= 1; 67 DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res2)); 68 69 buf[0][i1] ^= 1; 70 buf[1][i2 = abs(rand()) % (l1 - 1)] ^= 1; 71 pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res3); 72 if (!(res1 == 1 && res2 == 0 && res3 == 0)) { 73 fprintf(stderr, "PSS failed: %d, %d, %d, %lu, %lu\n", res1, res2, res3, l3, saltlen); 74 return 1; 75 } 76 } 77 return 0; 78 } 79 80 #else 81 82 int pkcs_1_test(void) 83 { 84 fprintf(stderr, "NOP"); 85 return 0; 86 } 87 88 #endif 89 90 91 /* $Source: /cvs/libtom/libtomcrypt/testprof/pkcs_1_test.c,v $ */ 92 /* $Revision: 1.7 $ */ 93 /* $Date: 2006/11/30 03:30:45 $ */ 94
