Mercurial > dropbear

annotate libtomcrypt/tests/pkcs_1_emsa_test.c @ 1529:66a1a2547133 fuzz

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The fuzzer has managed to generated DSS key/signature pairs that verify. Avoid false positives from bogus keys that wouldn't be used
author Matt Johnston <matt@ucc.asn.au>
date Wed, 21 Feb 2018 21:49:24 +0800
parents 6dba84798cd5
children
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9 #include <tomcrypt_test.h>
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10
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11 #if defined(LTC_PKCS_1) && defined(LTC_TEST_MPI)
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12
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13 #include "../notes/rsa-testvectors/pkcs1v15sign-vectors.c"
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14
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15
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16
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17 int pkcs_1_emsa_test(void)
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18 {
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19 int hash_idx = find_hash("sha1");
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20 unsigned int i;
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21 unsigned int j;
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22
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23 DO(hash_is_valid(hash_idx));
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24
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25 for (i = 0; i < sizeof(testcases_emsa)/sizeof(testcases_emsa[0]); ++i) {
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26 testcase_t* t = &testcases_emsa[i];
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27 rsa_key k, *key = &k;
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28 DOX(mp_init_multi(&key->e, &key->d, &key->N, &key->dQ,
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29 &key->dP, &key->qP, &key->p, &key->q, NULL), t->name);
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30
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31 DOX(mp_read_unsigned_bin(key->e, t->rsa.e, t->rsa.e_l), t->name);
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32 DOX(mp_read_unsigned_bin(key->d, t->rsa.d, t->rsa.d_l), t->name);
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33 DOX(mp_read_unsigned_bin(key->N, t->rsa.n, t->rsa.n_l), t->name);
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34 DOX(mp_read_unsigned_bin(key->dQ, t->rsa.dQ, t->rsa.dQ_l), t->name);
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35 DOX(mp_read_unsigned_bin(key->dP, t->rsa.dP, t->rsa.dP_l), t->name);
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36 DOX(mp_read_unsigned_bin(key->qP, t->rsa.qInv, t->rsa.qInv_l), t->name);
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37 DOX(mp_read_unsigned_bin(key->q, t->rsa.q, t->rsa.q_l), t->name);
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38 DOX(mp_read_unsigned_bin(key->p, t->rsa.p, t->rsa.p_l), t->name);
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39 key->type = PK_PRIVATE;
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40
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41 for (j = 0; j < sizeof(t->data)/sizeof(t->data[0]); ++j) {
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42 rsaData_t* s = &t->data[j];
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43 unsigned char buf[20], obuf[256];
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44 unsigned long buflen = sizeof(buf), obuflen = sizeof(obuf);
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45 int stat;
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46 DOX(hash_memory(hash_idx, s->o1, s->o1_l, buf, &buflen), s->name);
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47 DOX(rsa_sign_hash_ex(buf, buflen, obuf, &obuflen, LTC_PKCS_1_V1_5, NULL, -1, hash_idx, 0, key), s->name);
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48 DOX(obuflen == (unsigned long)s->o2_l?CRYPT_OK:CRYPT_FAIL_TESTVECTOR, s->name);
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49 DOX(memcmp(s->o2, obuf, s->o2_l)==0?CRYPT_OK:CRYPT_FAIL_TESTVECTOR, s->name);
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50 DOX(rsa_verify_hash_ex(obuf, obuflen, buf, buflen, LTC_PKCS_1_V1_5, hash_idx, 0, &stat, key), s->name);
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51 DOX(stat == 1?CRYPT_OK:CRYPT_FAIL_TESTVECTOR, s->name);
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52 } /* for */
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53
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54 mp_clear_multi(key->d, key->e, key->N, key->dQ, key->dP, key->qP, key->p, key->q, NULL);
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55 } /* for */
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56
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57 return 0;
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58 }
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59
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60 #else
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61
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62 int pkcs_1_emsa_test(void)
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63 {
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64 return CRYPT_NOP;
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65 }
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66
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67 #endif
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68
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69
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70 /* ref: $Format:%D$ */
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71 /* git commit: $Format:%H$ */
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72 /* commit time: $Format:%ai$ */