Mercurial > dropbear
diff testprof/pkcs_1_test.c @ 191:1c15b283127b libtomcrypt-orig
Import of libtomcrypt 1.02 with manual path rename rearrangement etc
author | Matt Johnston <matt@ucc.asn.au> |
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date | Fri, 06 May 2005 13:23:02 +0000 |
parents | |
children | 39d5d58461d6 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/testprof/pkcs_1_test.c Fri May 06 13:23:02 2005 +0000 @@ -0,0 +1,116 @@ +#include <tomcrypt_test.h> + +#ifdef PKCS_1 + +int pkcs_1_test(void) +{ + unsigned char buf[3][128]; + int res1, res2, res3, prng_idx, hash_idx; + unsigned long x, y, l1, l2, l3, i1, i2, lparamlen, saltlen, modlen; + static const unsigned char lparam[] = { 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 }; + + /* get hash/prng */ + hash_idx = find_hash("sha1"); + prng_idx = find_prng("yarrow"); + + if (hash_idx == -1 || prng_idx == -1) { + printf("pkcs_1 tests require sha1/yarrow"); + return 1; + } + + /* do many tests */ + for (x = 0; x < 100; x++) { + zeromem(buf, sizeof(buf)); + + /* make a dummy message (of random length) */ + l3 = (rand() & 31) + 8; + for (y = 0; y < l3; y++) buf[0][y] = rand() & 255; + + /* random modulus len (v1.5 must be multiple of 8 though arbitrary sizes seem to work) */ + modlen = 800 + 8 * (abs(rand()) % 28); + + /* PKCS v1.5 testing (encryption) */ + l1 = sizeof(buf[1]); + DO(pkcs_1_v15_es_encode(buf[0], l3, modlen, &yarrow_prng, prng_idx, buf[1], &l1)); + DO(pkcs_1_v15_es_decode(buf[1], l1, modlen, buf[2], l3, &res1)); + if (res1 != 1 || memcmp(buf[0], buf[2], l3)) { + printf("pkcs v1.5 encrypt failed %d, %lu, %lu ", res1, l1, l3); + return 1; + } + + /* PKCS v1.5 testing (signatures) */ + l1 = sizeof(buf[1]); + DO(pkcs_1_v15_sa_encode(buf[0], l3, hash_idx, modlen, buf[1], &l1)); + DO(pkcs_1_v15_sa_decode(buf[0], l3, buf[1], l1, hash_idx, modlen, &res1)); + buf[0][i1 = abs(rand()) % l3] ^= 1; + DO(pkcs_1_v15_sa_decode(buf[0], l3, buf[1], l1, hash_idx, modlen, &res2)); + buf[0][i1] ^= 1; + buf[1][i2 = abs(rand()) % l1] ^= 1; + DO(pkcs_1_v15_sa_decode(buf[0], l3, buf[1], l1, hash_idx, modlen, &res3)); + + if (!(res1 == 1 && res2 == 0 && res3 == 0)) { + printf("pkcs v1.5 sign failed %d %d %d ", res1, res2, res3); + return 1; + } + + /* pick a random lparam len [0..16] */ + lparamlen = abs(rand()) % 17; + + /* pick a random saltlen 0..16 */ + saltlen = abs(rand()) % 17; + + /* PKCS #1 v2.0 supports modlens not multiple of 8 */ + modlen = 800 + (abs(rand()) % 224); + + /* encode it */ + l1 = sizeof(buf[1]); + DO(pkcs_1_oaep_encode(buf[0], l3, lparam, lparamlen, modlen, &yarrow_prng, prng_idx, hash_idx, buf[1], &l1)); + + /* decode it */ + l2 = sizeof(buf[2]); + DO(pkcs_1_oaep_decode(buf[1], l1, lparam, lparamlen, modlen, hash_idx, buf[2], &l2, &res1)); + + if (res1 != 1 || l2 != l3 || memcmp(buf[2], buf[0], l3) != 0) { + printf("Outsize == %lu, should have been %lu, res1 = %d, lparamlen = %lu, msg contents follow.\n", l2, l3, res1, lparamlen); + printf("ORIGINAL:\n"); + for (x = 0; x < l3; x++) { + printf("%02x ", buf[0][x]); + } + printf("\nRESULT:\n"); + for (x = 0; x < l2; x++) { + printf("%02x ", buf[2][x]); + } + printf("\n\n"); + return 1; + } + + /* test PSS */ + l1 = sizeof(buf[1]); + DO(pkcs_1_pss_encode(buf[0], l3, saltlen, &yarrow_prng, prng_idx, hash_idx, modlen, buf[1], &l1)); + DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res1)); + + buf[0][i1 = abs(rand()) % l3] ^= 1; + DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res2)); + + buf[0][i1] ^= 1; + buf[1][i2 = abs(rand()) % l1] ^= 1; + DO(pkcs_1_pss_decode(buf[0], l3, buf[1], l1, saltlen, hash_idx, modlen, &res3)); + + if (!(res1 == 1 && res2 == 0 && res3 == 0)) { + printf("PSS failed: %d, %d, %d, %lu, %lu\n", res1, res2, res3, l3, saltlen); + return 1; + } + } + return 0; +} + +#else + +int pkcs_1_test(void) +{ + printf("NOP"); + return 0; +} + +#endif +