test_crypto.c 109 KB

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  1. /* Copyright (c) 2001-2004, Roger Dingledine.
  2. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
  3. * Copyright (c) 2007-2017, The Tor Project, Inc. */
  4. /* See LICENSE for licensing information */
  5. #include "orconfig.h"
  6. #define CRYPTO_CURVE25519_PRIVATE
  7. #define CRYPTO_PRIVATE
  8. #include "or.h"
  9. #include "test.h"
  10. #include "aes.h"
  11. #include "util.h"
  12. #include "siphash.h"
  13. #include "crypto_curve25519.h"
  14. #include "crypto_ed25519.h"
  15. #include "ed25519_vectors.inc"
  16. /** Run unit tests for Diffie-Hellman functionality. */
  17. static void
  18. test_crypto_dh(void *arg)
  19. {
  20. crypto_dh_t *dh1 = crypto_dh_new(DH_TYPE_CIRCUIT);
  21. crypto_dh_t *dh1_dup = NULL;
  22. crypto_dh_t *dh2 = crypto_dh_new(DH_TYPE_CIRCUIT);
  23. char p1[DH_BYTES];
  24. char p2[DH_BYTES];
  25. char s1[DH_BYTES];
  26. char s2[DH_BYTES];
  27. ssize_t s1len, s2len;
  28. (void)arg;
  29. tt_int_op(crypto_dh_get_bytes(dh1),OP_EQ, DH_BYTES);
  30. tt_int_op(crypto_dh_get_bytes(dh2),OP_EQ, DH_BYTES);
  31. memset(p1, 0, DH_BYTES);
  32. memset(p2, 0, DH_BYTES);
  33. tt_mem_op(p1,OP_EQ, p2, DH_BYTES);
  34. tt_int_op(-1, OP_EQ, crypto_dh_get_public(dh1, p1, 6)); /* too short */
  35. tt_assert(! crypto_dh_get_public(dh1, p1, DH_BYTES));
  36. tt_mem_op(p1,OP_NE, p2, DH_BYTES);
  37. tt_assert(! crypto_dh_get_public(dh2, p2, DH_BYTES));
  38. tt_mem_op(p1,OP_NE, p2, DH_BYTES);
  39. memset(s1, 0, DH_BYTES);
  40. memset(s2, 0xFF, DH_BYTES);
  41. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, p2, DH_BYTES, s1, 50);
  42. s2len = crypto_dh_compute_secret(LOG_WARN, dh2, p1, DH_BYTES, s2, 50);
  43. tt_assert(s1len > 0);
  44. tt_int_op(s1len,OP_EQ, s2len);
  45. tt_mem_op(s1,OP_EQ, s2, s1len);
  46. /* test dh_dup; make sure it works the same. */
  47. dh1_dup = crypto_dh_dup(dh1);
  48. s1len = crypto_dh_compute_secret(LOG_WARN, dh1_dup, p2, DH_BYTES, s1, 50);
  49. tt_mem_op(s1,OP_EQ, s2, s1len);
  50. {
  51. /* Now fabricate some bad values and make sure they get caught. */
  52. /* 1 and 0 should both fail. */
  53. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, "\x01", 1, s1, 50);
  54. tt_int_op(-1, OP_EQ, s1len);
  55. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, "\x00", 1, s1, 50);
  56. tt_int_op(-1, OP_EQ, s1len);
  57. memset(p1, 0, DH_BYTES); /* 0 with padding. */
  58. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, p1, DH_BYTES, s1, 50);
  59. tt_int_op(-1, OP_EQ, s1len);
  60. p1[DH_BYTES-1] = 1; /* 1 with padding*/
  61. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, p1, DH_BYTES, s1, 50);
  62. tt_int_op(-1, OP_EQ, s1len);
  63. /* 2 is okay, though weird. */
  64. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, "\x02", 1, s1, 50);
  65. tt_int_op(50, OP_EQ, s1len);
  66. const char P[] =
  67. "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E08"
  68. "8A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B"
  69. "302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9"
  70. "A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE6"
  71. "49286651ECE65381FFFFFFFFFFFFFFFF";
  72. /* p-1, p, and so on are not okay. */
  73. base16_decode(p1, sizeof(p1), P, strlen(P));
  74. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, p1, DH_BYTES, s1, 50);
  75. tt_int_op(-1, OP_EQ, s1len);
  76. p1[DH_BYTES-1] = 0xFE; /* p-1 */
  77. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, p1, DH_BYTES, s1, 50);
  78. tt_int_op(-1, OP_EQ, s1len);
  79. p1[DH_BYTES-1] = 0xFD; /* p-2 works fine */
  80. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, p1, DH_BYTES, s1, 50);
  81. tt_int_op(50, OP_EQ, s1len);
  82. const char P_plus_one[] =
  83. "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E08"
  84. "8A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B"
  85. "302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9"
  86. "A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE6"
  87. "49286651ECE653820000000000000000";
  88. base16_decode(p1, sizeof(p1), P_plus_one, strlen(P_plus_one));
  89. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, p1, DH_BYTES, s1, 50);
  90. tt_int_op(-1, OP_EQ, s1len);
  91. p1[DH_BYTES-1] = 0x01; /* p+2 */
  92. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, p1, DH_BYTES, s1, 50);
  93. tt_int_op(-1, OP_EQ, s1len);
  94. p1[DH_BYTES-1] = 0xff; /* p+256 */
  95. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, p1, DH_BYTES, s1, 50);
  96. tt_int_op(-1, OP_EQ, s1len);
  97. memset(p1, 0xff, DH_BYTES), /* 2^1024-1 */
  98. s1len = crypto_dh_compute_secret(LOG_WARN, dh1, p1, DH_BYTES, s1, 50);
  99. tt_int_op(-1, OP_EQ, s1len);
  100. }
  101. {
  102. /* provoke an error in the openssl DH_compute_key function; make sure we
  103. * survive. */
  104. tt_assert(! crypto_dh_get_public(dh1, p1, DH_BYTES));
  105. crypto_dh_free(dh2);
  106. dh2= crypto_dh_new(DH_TYPE_CIRCUIT); /* no private key set */
  107. s1len = crypto_dh_compute_secret(LOG_WARN, dh2,
  108. p1, DH_BYTES,
  109. s1, 50);
  110. tt_int_op(s1len, OP_EQ, -1);
  111. }
  112. done:
  113. crypto_dh_free(dh1);
  114. crypto_dh_free(dh2);
  115. crypto_dh_free(dh1_dup);
  116. }
  117. static void
  118. test_crypto_openssl_version(void *arg)
  119. {
  120. (void)arg;
  121. const char *version = crypto_openssl_get_version_str();
  122. const char *h_version = crypto_openssl_get_header_version_str();
  123. tt_assert(version);
  124. tt_assert(h_version);
  125. tt_assert(!strcmpstart(version, h_version)); /* "-fips" suffix, etc */
  126. tt_assert(!strstr(version, "OpenSSL"));
  127. int a=-1,b=-1,c=-1;
  128. if (!strcmpstart(version, "LibreSSL") || !strcmpstart(version, "BoringSSL"))
  129. return;
  130. int r = tor_sscanf(version, "%d.%d.%d", &a,&b,&c);
  131. tt_int_op(r, OP_EQ, 3);
  132. tt_int_op(a, OP_GE, 0);
  133. tt_int_op(b, OP_GE, 0);
  134. tt_int_op(c, OP_GE, 0);
  135. done:
  136. ;
  137. }
  138. /** Run unit tests for our random number generation function and its wrappers.
  139. */
  140. static void
  141. test_crypto_rng(void *arg)
  142. {
  143. int i, j, allok;
  144. char data1[100], data2[100];
  145. double d;
  146. char *h=NULL;
  147. /* Try out RNG. */
  148. (void)arg;
  149. tt_assert(! crypto_seed_rng());
  150. crypto_rand(data1, 100);
  151. crypto_rand(data2, 100);
  152. tt_mem_op(data1,OP_NE, data2,100);
  153. allok = 1;
  154. for (i = 0; i < 100; ++i) {
  155. uint64_t big;
  156. char *host;
  157. j = crypto_rand_int(100);
  158. if (j < 0 || j >= 100)
  159. allok = 0;
  160. big = crypto_rand_uint64(U64_LITERAL(1)<<40);
  161. if (big >= (U64_LITERAL(1)<<40))
  162. allok = 0;
  163. big = crypto_rand_uint64(U64_LITERAL(5));
  164. if (big >= 5)
  165. allok = 0;
  166. d = crypto_rand_double();
  167. tt_assert(d >= 0);
  168. tt_assert(d < 1.0);
  169. host = crypto_random_hostname(3,8,"www.",".onion");
  170. if (strcmpstart(host,"www.") ||
  171. strcmpend(host,".onion") ||
  172. strlen(host) < 13 ||
  173. strlen(host) > 18)
  174. allok = 0;
  175. tor_free(host);
  176. }
  177. /* Make sure crypto_random_hostname clips its inputs properly. */
  178. h = crypto_random_hostname(20000, 9000, "www.", ".onion");
  179. tt_assert(! strcmpstart(h,"www."));
  180. tt_assert(! strcmpend(h,".onion"));
  181. tt_int_op(63+4+6, OP_EQ, strlen(h));
  182. tt_assert(allok);
  183. done:
  184. tor_free(h);
  185. }
  186. static void
  187. test_crypto_rng_range(void *arg)
  188. {
  189. int got_smallest = 0, got_largest = 0;
  190. int i;
  191. (void)arg;
  192. for (i = 0; i < 1000; ++i) {
  193. int x = crypto_rand_int_range(5,9);
  194. tt_int_op(x, OP_GE, 5);
  195. tt_int_op(x, OP_LT, 9);
  196. if (x == 5)
  197. got_smallest = 1;
  198. if (x == 8)
  199. got_largest = 1;
  200. }
  201. /* These fail with probability 1/10^603. */
  202. tt_assert(got_smallest);
  203. tt_assert(got_largest);
  204. got_smallest = got_largest = 0;
  205. const uint64_t ten_billion = 10 * ((uint64_t)1000000000000);
  206. for (i = 0; i < 1000; ++i) {
  207. uint64_t x = crypto_rand_uint64_range(ten_billion, ten_billion+10);
  208. tt_u64_op(x, OP_GE, ten_billion);
  209. tt_u64_op(x, OP_LT, ten_billion+10);
  210. if (x == ten_billion)
  211. got_smallest = 1;
  212. if (x == ten_billion+9)
  213. got_largest = 1;
  214. }
  215. tt_assert(got_smallest);
  216. tt_assert(got_largest);
  217. const time_t now = time(NULL);
  218. for (i = 0; i < 2000; ++i) {
  219. time_t x = crypto_rand_time_range(now, now+60);
  220. tt_i64_op(x, OP_GE, now);
  221. tt_i64_op(x, OP_LT, now+60);
  222. if (x == now)
  223. got_smallest = 1;
  224. if (x == now+59)
  225. got_largest = 1;
  226. }
  227. tt_assert(got_smallest);
  228. tt_assert(got_largest);
  229. done:
  230. ;
  231. }
  232. static void
  233. test_crypto_rng_strongest(void *arg)
  234. {
  235. const char *how = arg;
  236. int broken = 0;
  237. if (how == NULL) {
  238. ;
  239. } else if (!strcmp(how, "nosyscall")) {
  240. break_strongest_rng_syscall = 1;
  241. } else if (!strcmp(how, "nofallback")) {
  242. break_strongest_rng_fallback = 1;
  243. } else if (!strcmp(how, "broken")) {
  244. broken = break_strongest_rng_syscall = break_strongest_rng_fallback = 1;
  245. }
  246. #define N 128
  247. uint8_t combine_and[N];
  248. uint8_t combine_or[N];
  249. int i, j;
  250. memset(combine_and, 0xff, N);
  251. memset(combine_or, 0, N);
  252. for (i = 0; i < 100; ++i) { /* 2^-100 chances just don't happen. */
  253. uint8_t output[N];
  254. memset(output, 0, N);
  255. if (how == NULL) {
  256. /* this one can't fail. */
  257. crypto_strongest_rand(output, sizeof(output));
  258. } else {
  259. int r = crypto_strongest_rand_raw(output, sizeof(output));
  260. if (r == -1) {
  261. if (broken) {
  262. goto done; /* we're fine. */
  263. }
  264. /* This function is allowed to break, but only if it always breaks. */
  265. tt_int_op(i, OP_EQ, 0);
  266. tt_skip();
  267. } else {
  268. tt_assert(! broken);
  269. }
  270. }
  271. for (j = 0; j < N; ++j) {
  272. combine_and[j] &= output[j];
  273. combine_or[j] |= output[j];
  274. }
  275. }
  276. for (j = 0; j < N; ++j) {
  277. tt_int_op(combine_and[j], OP_EQ, 0);
  278. tt_int_op(combine_or[j], OP_EQ, 0xff);
  279. }
  280. done:
  281. ;
  282. #undef N
  283. }
  284. /** Run unit tests for our AES128 functionality */
  285. static void
  286. test_crypto_aes128(void *arg)
  287. {
  288. char *data1 = NULL, *data2 = NULL, *data3 = NULL;
  289. crypto_cipher_t *env1 = NULL, *env2 = NULL;
  290. int i, j;
  291. char *mem_op_hex_tmp=NULL;
  292. char key[CIPHER_KEY_LEN];
  293. int use_evp = !strcmp(arg,"evp");
  294. evaluate_evp_for_aes(use_evp);
  295. evaluate_ctr_for_aes();
  296. data1 = tor_malloc(1024);
  297. data2 = tor_malloc(1024);
  298. data3 = tor_malloc(1024);
  299. /* Now, test encryption and decryption with stream cipher. */
  300. data1[0]='\0';
  301. for (i = 1023; i>0; i -= 35)
  302. strncat(data1, "Now is the time for all good onions", i);
  303. memset(data2, 0, 1024);
  304. memset(data3, 0, 1024);
  305. crypto_rand(key, sizeof(key));
  306. env1 = crypto_cipher_new(key);
  307. tt_ptr_op(env1, OP_NE, NULL);
  308. env2 = crypto_cipher_new(key);
  309. tt_ptr_op(env2, OP_NE, NULL);
  310. /* Try encrypting 512 chars. */
  311. crypto_cipher_encrypt(env1, data2, data1, 512);
  312. crypto_cipher_decrypt(env2, data3, data2, 512);
  313. tt_mem_op(data1,OP_EQ, data3, 512);
  314. tt_mem_op(data1,OP_NE, data2, 512);
  315. /* Now encrypt 1 at a time, and get 1 at a time. */
  316. for (j = 512; j < 560; ++j) {
  317. crypto_cipher_encrypt(env1, data2+j, data1+j, 1);
  318. }
  319. for (j = 512; j < 560; ++j) {
  320. crypto_cipher_decrypt(env2, data3+j, data2+j, 1);
  321. }
  322. tt_mem_op(data1,OP_EQ, data3, 560);
  323. /* Now encrypt 3 at a time, and get 5 at a time. */
  324. for (j = 560; j < 1024-5; j += 3) {
  325. crypto_cipher_encrypt(env1, data2+j, data1+j, 3);
  326. }
  327. for (j = 560; j < 1024-5; j += 5) {
  328. crypto_cipher_decrypt(env2, data3+j, data2+j, 5);
  329. }
  330. tt_mem_op(data1,OP_EQ, data3, 1024-5);
  331. /* Now make sure that when we encrypt with different chunk sizes, we get
  332. the same results. */
  333. crypto_cipher_free(env2);
  334. env2 = NULL;
  335. memset(data3, 0, 1024);
  336. env2 = crypto_cipher_new(key);
  337. tt_ptr_op(env2, OP_NE, NULL);
  338. for (j = 0; j < 1024-16; j += 17) {
  339. crypto_cipher_encrypt(env2, data3+j, data1+j, 17);
  340. }
  341. for (j= 0; j < 1024-16; ++j) {
  342. if (data2[j] != data3[j]) {
  343. printf("%d: %d\t%d\n", j, (int) data2[j], (int) data3[j]);
  344. }
  345. }
  346. tt_mem_op(data2,OP_EQ, data3, 1024-16);
  347. crypto_cipher_free(env1);
  348. env1 = NULL;
  349. crypto_cipher_free(env2);
  350. env2 = NULL;
  351. /* NIST test vector for aes. */
  352. /* IV starts at 0 */
  353. env1 = crypto_cipher_new("\x80\x00\x00\x00\x00\x00\x00\x00"
  354. "\x00\x00\x00\x00\x00\x00\x00\x00");
  355. crypto_cipher_encrypt(env1, data1,
  356. "\x00\x00\x00\x00\x00\x00\x00\x00"
  357. "\x00\x00\x00\x00\x00\x00\x00\x00", 16);
  358. test_memeq_hex(data1, "0EDD33D3C621E546455BD8BA1418BEC8");
  359. /* Now test rollover. All these values are originally from a python
  360. * script. */
  361. crypto_cipher_free(env1);
  362. env1 = crypto_cipher_new_with_iv(
  363. "\x80\x00\x00\x00\x00\x00\x00\x00"
  364. "\x00\x00\x00\x00\x00\x00\x00\x00",
  365. "\x00\x00\x00\x00\x00\x00\x00\x00"
  366. "\xff\xff\xff\xff\xff\xff\xff\xff");
  367. memset(data2, 0, 1024);
  368. crypto_cipher_encrypt(env1, data1, data2, 32);
  369. test_memeq_hex(data1, "335fe6da56f843199066c14a00a40231"
  370. "cdd0b917dbc7186908a6bfb5ffd574d3");
  371. crypto_cipher_free(env1);
  372. env1 = crypto_cipher_new_with_iv(
  373. "\x80\x00\x00\x00\x00\x00\x00\x00"
  374. "\x00\x00\x00\x00\x00\x00\x00\x00",
  375. "\x00\x00\x00\x00\xff\xff\xff\xff"
  376. "\xff\xff\xff\xff\xff\xff\xff\xff");
  377. memset(data2, 0, 1024);
  378. crypto_cipher_encrypt(env1, data1, data2, 32);
  379. test_memeq_hex(data1, "e627c6423fa2d77832a02b2794094b73"
  380. "3e63c721df790d2c6469cc1953a3ffac");
  381. crypto_cipher_free(env1);
  382. env1 = crypto_cipher_new_with_iv(
  383. "\x80\x00\x00\x00\x00\x00\x00\x00"
  384. "\x00\x00\x00\x00\x00\x00\x00\x00",
  385. "\xff\xff\xff\xff\xff\xff\xff\xff"
  386. "\xff\xff\xff\xff\xff\xff\xff\xff");
  387. memset(data2, 0, 1024);
  388. crypto_cipher_encrypt(env1, data1, data2, 32);
  389. test_memeq_hex(data1, "2aed2bff0de54f9328efd070bf48f70a"
  390. "0EDD33D3C621E546455BD8BA1418BEC8");
  391. /* Now check rollover on inplace cipher. */
  392. crypto_cipher_free(env1);
  393. env1 = crypto_cipher_new_with_iv(
  394. "\x80\x00\x00\x00\x00\x00\x00\x00"
  395. "\x00\x00\x00\x00\x00\x00\x00\x00",
  396. "\xff\xff\xff\xff\xff\xff\xff\xff"
  397. "\xff\xff\xff\xff\xff\xff\xff\xff");
  398. crypto_cipher_crypt_inplace(env1, data2, 64);
  399. test_memeq_hex(data2, "2aed2bff0de54f9328efd070bf48f70a"
  400. "0EDD33D3C621E546455BD8BA1418BEC8"
  401. "93e2c5243d6839eac58503919192f7ae"
  402. "1908e67cafa08d508816659c2e693191");
  403. crypto_cipher_free(env1);
  404. env1 = crypto_cipher_new_with_iv(
  405. "\x80\x00\x00\x00\x00\x00\x00\x00"
  406. "\x00\x00\x00\x00\x00\x00\x00\x00",
  407. "\xff\xff\xff\xff\xff\xff\xff\xff"
  408. "\xff\xff\xff\xff\xff\xff\xff\xff");
  409. crypto_cipher_crypt_inplace(env1, data2, 64);
  410. tt_assert(tor_mem_is_zero(data2, 64));
  411. done:
  412. tor_free(mem_op_hex_tmp);
  413. if (env1)
  414. crypto_cipher_free(env1);
  415. if (env2)
  416. crypto_cipher_free(env2);
  417. tor_free(data1);
  418. tor_free(data2);
  419. tor_free(data3);
  420. }
  421. static void
  422. test_crypto_aes_ctr_testvec(void *arg)
  423. {
  424. const char *bitstr = arg;
  425. char *mem_op_hex_tmp=NULL;
  426. crypto_cipher_t *c=NULL;
  427. /* from NIST SP800-38a, section F.5 */
  428. const char ctr16[] = "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff";
  429. const char plaintext16[] =
  430. "6bc1bee22e409f96e93d7e117393172a"
  431. "ae2d8a571e03ac9c9eb76fac45af8e51"
  432. "30c81c46a35ce411e5fbc1191a0a52ef"
  433. "f69f2445df4f9b17ad2b417be66c3710";
  434. const char *ciphertext16;
  435. const char *key16;
  436. int bits;
  437. if (!strcmp(bitstr, "128")) {
  438. ciphertext16 = /* section F.5.1 */
  439. "874d6191b620e3261bef6864990db6ce"
  440. "9806f66b7970fdff8617187bb9fffdff"
  441. "5ae4df3edbd5d35e5b4f09020db03eab"
  442. "1e031dda2fbe03d1792170a0f3009cee";
  443. key16 = "2b7e151628aed2a6abf7158809cf4f3c";
  444. bits = 128;
  445. } else if (!strcmp(bitstr, "192")) {
  446. ciphertext16 = /* section F.5.3 */
  447. "1abc932417521ca24f2b0459fe7e6e0b"
  448. "090339ec0aa6faefd5ccc2c6f4ce8e94"
  449. "1e36b26bd1ebc670d1bd1d665620abf7"
  450. "4f78a7f6d29809585a97daec58c6b050";
  451. key16 = "8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b";
  452. bits = 192;
  453. } else if (!strcmp(bitstr, "256")) {
  454. ciphertext16 = /* section F.5.5 */
  455. "601ec313775789a5b7a7f504bbf3d228"
  456. "f443e3ca4d62b59aca84e990cacaf5c5"
  457. "2b0930daa23de94ce87017ba2d84988d"
  458. "dfc9c58db67aada613c2dd08457941a6";
  459. key16 =
  460. "603deb1015ca71be2b73aef0857d7781"
  461. "1f352c073b6108d72d9810a30914dff4";
  462. bits = 256;
  463. } else {
  464. tt_abort_msg("AES doesn't support this number of bits.");
  465. }
  466. char key[32];
  467. char iv[16];
  468. char plaintext[16*4];
  469. memset(key, 0xf9, sizeof(key)); /* poison extra bytes */
  470. base16_decode(key, sizeof(key), key16, strlen(key16));
  471. base16_decode(iv, sizeof(iv), ctr16, strlen(ctr16));
  472. base16_decode(plaintext, sizeof(plaintext),
  473. plaintext16, strlen(plaintext16));
  474. c = crypto_cipher_new_with_iv_and_bits((uint8_t*)key, (uint8_t*)iv, bits);
  475. crypto_cipher_crypt_inplace(c, plaintext, sizeof(plaintext));
  476. test_memeq_hex(plaintext, ciphertext16);
  477. done:
  478. tor_free(mem_op_hex_tmp);
  479. crypto_cipher_free(c);
  480. }
  481. /** Run unit tests for our SHA-1 functionality */
  482. static void
  483. test_crypto_sha(void *arg)
  484. {
  485. crypto_digest_t *d1 = NULL, *d2 = NULL;
  486. int i;
  487. #define RFC_4231_MAX_KEY_SIZE 131
  488. char key[RFC_4231_MAX_KEY_SIZE];
  489. char digest[DIGEST256_LEN];
  490. char data[DIGEST512_LEN];
  491. char d_out1[DIGEST512_LEN], d_out2[DIGEST512_LEN];
  492. char *mem_op_hex_tmp=NULL;
  493. /* Test SHA-1 with a test vector from the specification. */
  494. (void)arg;
  495. i = crypto_digest(data, "abc", 3);
  496. test_memeq_hex(data, "A9993E364706816ABA3E25717850C26C9CD0D89D");
  497. tt_int_op(i, OP_EQ, 0);
  498. /* Test SHA-256 with a test vector from the specification. */
  499. i = crypto_digest256(data, "abc", 3, DIGEST_SHA256);
  500. test_memeq_hex(data, "BA7816BF8F01CFEA414140DE5DAE2223B00361A3"
  501. "96177A9CB410FF61F20015AD");
  502. tt_int_op(i, OP_EQ, 0);
  503. /* Test SHA-512 with a test vector from the specification. */
  504. i = crypto_digest512(data, "abc", 3, DIGEST_SHA512);
  505. test_memeq_hex(data, "ddaf35a193617abacc417349ae20413112e6fa4e89a97"
  506. "ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3"
  507. "feebbd454d4423643ce80e2a9ac94fa54ca49f");
  508. tt_int_op(i, OP_EQ, 0);
  509. /* Test HMAC-SHA256 with test cases from wikipedia and RFC 4231 */
  510. /* Case empty (wikipedia) */
  511. crypto_hmac_sha256(digest, "", 0, "", 0);
  512. tt_str_op(hex_str(digest, 32),OP_EQ,
  513. "B613679A0814D9EC772F95D778C35FC5FF1697C493715653C6C712144292C5AD");
  514. /* Case quick-brown (wikipedia) */
  515. crypto_hmac_sha256(digest, "key", 3,
  516. "The quick brown fox jumps over the lazy dog", 43);
  517. tt_str_op(hex_str(digest, 32),OP_EQ,
  518. "F7BC83F430538424B13298E6AA6FB143EF4D59A14946175997479DBC2D1A3CD8");
  519. /* "Test Case 1" from RFC 4231 */
  520. memset(key, 0x0b, 20);
  521. crypto_hmac_sha256(digest, key, 20, "Hi There", 8);
  522. test_memeq_hex(digest,
  523. "b0344c61d8db38535ca8afceaf0bf12b"
  524. "881dc200c9833da726e9376c2e32cff7");
  525. /* "Test Case 2" from RFC 4231 */
  526. memset(key, 0x0b, 20);
  527. crypto_hmac_sha256(digest, "Jefe", 4, "what do ya want for nothing?", 28);
  528. test_memeq_hex(digest,
  529. "5bdcc146bf60754e6a042426089575c7"
  530. "5a003f089d2739839dec58b964ec3843");
  531. /* "Test case 3" from RFC 4231 */
  532. memset(key, 0xaa, 20);
  533. memset(data, 0xdd, 50);
  534. crypto_hmac_sha256(digest, key, 20, data, 50);
  535. test_memeq_hex(digest,
  536. "773ea91e36800e46854db8ebd09181a7"
  537. "2959098b3ef8c122d9635514ced565fe");
  538. /* "Test case 4" from RFC 4231 */
  539. base16_decode(key, 25,
  540. "0102030405060708090a0b0c0d0e0f10111213141516171819", 50);
  541. memset(data, 0xcd, 50);
  542. crypto_hmac_sha256(digest, key, 25, data, 50);
  543. test_memeq_hex(digest,
  544. "82558a389a443c0ea4cc819899f2083a"
  545. "85f0faa3e578f8077a2e3ff46729665b");
  546. /* "Test case 5" from RFC 4231 */
  547. memset(key, 0x0c, 20);
  548. crypto_hmac_sha256(digest, key, 20, "Test With Truncation", 20);
  549. test_memeq_hex(digest,
  550. "a3b6167473100ee06e0c796c2955552b");
  551. /* "Test case 6" from RFC 4231 */
  552. memset(key, 0xaa, 131);
  553. crypto_hmac_sha256(digest, key, 131,
  554. "Test Using Larger Than Block-Size Key - Hash Key First",
  555. 54);
  556. test_memeq_hex(digest,
  557. "60e431591ee0b67f0d8a26aacbf5b77f"
  558. "8e0bc6213728c5140546040f0ee37f54");
  559. /* "Test case 7" from RFC 4231 */
  560. memset(key, 0xaa, 131);
  561. crypto_hmac_sha256(digest, key, 131,
  562. "This is a test using a larger than block-size key and a "
  563. "larger than block-size data. The key needs to be hashed "
  564. "before being used by the HMAC algorithm.", 152);
  565. test_memeq_hex(digest,
  566. "9b09ffa71b942fcb27635fbcd5b0e944"
  567. "bfdc63644f0713938a7f51535c3a35e2");
  568. /* Incremental digest code. */
  569. d1 = crypto_digest_new();
  570. tt_assert(d1);
  571. crypto_digest_add_bytes(d1, "abcdef", 6);
  572. d2 = crypto_digest_dup(d1);
  573. tt_assert(d2);
  574. crypto_digest_add_bytes(d2, "ghijkl", 6);
  575. crypto_digest_get_digest(d2, d_out1, DIGEST_LEN);
  576. crypto_digest(d_out2, "abcdefghijkl", 12);
  577. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST_LEN);
  578. crypto_digest_assign(d2, d1);
  579. crypto_digest_add_bytes(d2, "mno", 3);
  580. crypto_digest_get_digest(d2, d_out1, DIGEST_LEN);
  581. crypto_digest(d_out2, "abcdefmno", 9);
  582. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST_LEN);
  583. crypto_digest_get_digest(d1, d_out1, DIGEST_LEN);
  584. crypto_digest(d_out2, "abcdef", 6);
  585. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST_LEN);
  586. crypto_digest_free(d1);
  587. crypto_digest_free(d2);
  588. /* Incremental digest code with sha256 */
  589. d1 = crypto_digest256_new(DIGEST_SHA256);
  590. tt_assert(d1);
  591. crypto_digest_add_bytes(d1, "abcdef", 6);
  592. d2 = crypto_digest_dup(d1);
  593. tt_assert(d2);
  594. crypto_digest_add_bytes(d2, "ghijkl", 6);
  595. crypto_digest_get_digest(d2, d_out1, DIGEST256_LEN);
  596. crypto_digest256(d_out2, "abcdefghijkl", 12, DIGEST_SHA256);
  597. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST256_LEN);
  598. crypto_digest_assign(d2, d1);
  599. crypto_digest_add_bytes(d2, "mno", 3);
  600. crypto_digest_get_digest(d2, d_out1, DIGEST256_LEN);
  601. crypto_digest256(d_out2, "abcdefmno", 9, DIGEST_SHA256);
  602. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST256_LEN);
  603. crypto_digest_get_digest(d1, d_out1, DIGEST256_LEN);
  604. crypto_digest256(d_out2, "abcdef", 6, DIGEST_SHA256);
  605. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST256_LEN);
  606. crypto_digest_free(d1);
  607. crypto_digest_free(d2);
  608. /* Incremental digest code with sha512 */
  609. d1 = crypto_digest512_new(DIGEST_SHA512);
  610. tt_assert(d1);
  611. crypto_digest_add_bytes(d1, "abcdef", 6);
  612. d2 = crypto_digest_dup(d1);
  613. tt_assert(d2);
  614. crypto_digest_add_bytes(d2, "ghijkl", 6);
  615. crypto_digest_get_digest(d2, d_out1, DIGEST512_LEN);
  616. crypto_digest512(d_out2, "abcdefghijkl", 12, DIGEST_SHA512);
  617. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST512_LEN);
  618. crypto_digest_assign(d2, d1);
  619. crypto_digest_add_bytes(d2, "mno", 3);
  620. crypto_digest_get_digest(d2, d_out1, DIGEST512_LEN);
  621. crypto_digest512(d_out2, "abcdefmno", 9, DIGEST_SHA512);
  622. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST512_LEN);
  623. crypto_digest_get_digest(d1, d_out1, DIGEST512_LEN);
  624. crypto_digest512(d_out2, "abcdef", 6, DIGEST_SHA512);
  625. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST512_LEN);
  626. done:
  627. if (d1)
  628. crypto_digest_free(d1);
  629. if (d2)
  630. crypto_digest_free(d2);
  631. tor_free(mem_op_hex_tmp);
  632. }
  633. static void
  634. test_crypto_sha3(void *arg)
  635. {
  636. crypto_digest_t *d1 = NULL, *d2 = NULL;
  637. int i;
  638. char data[DIGEST512_LEN];
  639. char d_out1[DIGEST512_LEN], d_out2[DIGEST512_LEN];
  640. char *mem_op_hex_tmp=NULL;
  641. char *large = NULL;
  642. (void)arg;
  643. /* Test SHA3-[256,512] with a test vectors from the Keccak Code Package.
  644. *
  645. * NB: The code package's test vectors have length expressed in bits.
  646. */
  647. /* Len = 8, Msg = CC */
  648. const uint8_t keccak_kat_msg8[] = { 0xcc };
  649. i = crypto_digest256(data, (const char*)keccak_kat_msg8, 1, DIGEST_SHA3_256);
  650. test_memeq_hex(data, "677035391CD3701293D385F037BA3279"
  651. "6252BB7CE180B00B582DD9B20AAAD7F0");
  652. tt_int_op(i, OP_EQ, 0);
  653. i = crypto_digest512(data, (const char*)keccak_kat_msg8, 1, DIGEST_SHA3_512);
  654. test_memeq_hex(data, "3939FCC8B57B63612542DA31A834E5DC"
  655. "C36E2EE0F652AC72E02624FA2E5ADEEC"
  656. "C7DD6BB3580224B4D6138706FC6E8059"
  657. "7B528051230B00621CC2B22999EAA205");
  658. tt_int_op(i, OP_EQ, 0);
  659. /* Len = 24, Msg = 1F877C */
  660. const uint8_t keccak_kat_msg24[] = { 0x1f, 0x87, 0x7c };
  661. i = crypto_digest256(data, (const char*)keccak_kat_msg24, 3,
  662. DIGEST_SHA3_256);
  663. test_memeq_hex(data, "BC22345E4BD3F792A341CF18AC0789F1"
  664. "C9C966712A501B19D1B6632CCD408EC5");
  665. tt_int_op(i, OP_EQ, 0);
  666. i = crypto_digest512(data, (const char*)keccak_kat_msg24, 3,
  667. DIGEST_SHA3_512);
  668. test_memeq_hex(data, "CB20DCF54955F8091111688BECCEF48C"
  669. "1A2F0D0608C3A575163751F002DB30F4"
  670. "0F2F671834B22D208591CFAF1F5ECFE4"
  671. "3C49863A53B3225BDFD7C6591BA7658B");
  672. tt_int_op(i, OP_EQ, 0);
  673. /* Len = 1080, Msg = B771D5CEF... ...C35AC81B5 (SHA3-256 rate - 1) */
  674. const uint8_t keccak_kat_msg1080[] = {
  675. 0xB7, 0x71, 0xD5, 0xCE, 0xF5, 0xD1, 0xA4, 0x1A, 0x93, 0xD1,
  676. 0x56, 0x43, 0xD7, 0x18, 0x1D, 0x2A, 0x2E, 0xF0, 0xA8, 0xE8,
  677. 0x4D, 0x91, 0x81, 0x2F, 0x20, 0xED, 0x21, 0xF1, 0x47, 0xBE,
  678. 0xF7, 0x32, 0xBF, 0x3A, 0x60, 0xEF, 0x40, 0x67, 0xC3, 0x73,
  679. 0x4B, 0x85, 0xBC, 0x8C, 0xD4, 0x71, 0x78, 0x0F, 0x10, 0xDC,
  680. 0x9E, 0x82, 0x91, 0xB5, 0x83, 0x39, 0xA6, 0x77, 0xB9, 0x60,
  681. 0x21, 0x8F, 0x71, 0xE7, 0x93, 0xF2, 0x79, 0x7A, 0xEA, 0x34,
  682. 0x94, 0x06, 0x51, 0x28, 0x29, 0x06, 0x5D, 0x37, 0xBB, 0x55,
  683. 0xEA, 0x79, 0x6F, 0xA4, 0xF5, 0x6F, 0xD8, 0x89, 0x6B, 0x49,
  684. 0xB2, 0xCD, 0x19, 0xB4, 0x32, 0x15, 0xAD, 0x96, 0x7C, 0x71,
  685. 0x2B, 0x24, 0xE5, 0x03, 0x2D, 0x06, 0x52, 0x32, 0xE0, 0x2C,
  686. 0x12, 0x74, 0x09, 0xD2, 0xED, 0x41, 0x46, 0xB9, 0xD7, 0x5D,
  687. 0x76, 0x3D, 0x52, 0xDB, 0x98, 0xD9, 0x49, 0xD3, 0xB0, 0xFE,
  688. 0xD6, 0xA8, 0x05, 0x2F, 0xBB,
  689. };
  690. i = crypto_digest256(data, (const char*)keccak_kat_msg1080, 135,
  691. DIGEST_SHA3_256);
  692. test_memeq_hex(data, "A19EEE92BB2097B64E823D597798AA18"
  693. "BE9B7C736B8059ABFD6779AC35AC81B5");
  694. tt_int_op(i, OP_EQ, 0);
  695. i = crypto_digest512(data, (const char*)keccak_kat_msg1080, 135,
  696. DIGEST_SHA3_512);
  697. test_memeq_hex(data, "7575A1FB4FC9A8F9C0466BD5FCA496D1"
  698. "CB78696773A212A5F62D02D14E3259D1"
  699. "92A87EBA4407DD83893527331407B6DA"
  700. "DAAD920DBC46489B677493CE5F20B595");
  701. tt_int_op(i, OP_EQ, 0);
  702. /* Len = 1088, Msg = B32D95B0... ...8E380C04 (SHA3-256 rate) */
  703. const uint8_t keccak_kat_msg1088[] = {
  704. 0xB3, 0x2D, 0x95, 0xB0, 0xB9, 0xAA, 0xD2, 0xA8, 0x81, 0x6D,
  705. 0xE6, 0xD0, 0x6D, 0x1F, 0x86, 0x00, 0x85, 0x05, 0xBD, 0x8C,
  706. 0x14, 0x12, 0x4F, 0x6E, 0x9A, 0x16, 0x3B, 0x5A, 0x2A, 0xDE,
  707. 0x55, 0xF8, 0x35, 0xD0, 0xEC, 0x38, 0x80, 0xEF, 0x50, 0x70,
  708. 0x0D, 0x3B, 0x25, 0xE4, 0x2C, 0xC0, 0xAF, 0x05, 0x0C, 0xCD,
  709. 0x1B, 0xE5, 0xE5, 0x55, 0xB2, 0x30, 0x87, 0xE0, 0x4D, 0x7B,
  710. 0xF9, 0x81, 0x36, 0x22, 0x78, 0x0C, 0x73, 0x13, 0xA1, 0x95,
  711. 0x4F, 0x87, 0x40, 0xB6, 0xEE, 0x2D, 0x3F, 0x71, 0xF7, 0x68,
  712. 0xDD, 0x41, 0x7F, 0x52, 0x04, 0x82, 0xBD, 0x3A, 0x08, 0xD4,
  713. 0xF2, 0x22, 0xB4, 0xEE, 0x9D, 0xBD, 0x01, 0x54, 0x47, 0xB3,
  714. 0x35, 0x07, 0xDD, 0x50, 0xF3, 0xAB, 0x42, 0x47, 0xC5, 0xDE,
  715. 0x9A, 0x8A, 0xBD, 0x62, 0xA8, 0xDE, 0xCE, 0xA0, 0x1E, 0x3B,
  716. 0x87, 0xC8, 0xB9, 0x27, 0xF5, 0xB0, 0x8B, 0xEB, 0x37, 0x67,
  717. 0x4C, 0x6F, 0x8E, 0x38, 0x0C, 0x04,
  718. };
  719. i = crypto_digest256(data, (const char*)keccak_kat_msg1088, 136,
  720. DIGEST_SHA3_256);
  721. test_memeq_hex(data, "DF673F4105379FF6B755EEAB20CEB0DC"
  722. "77B5286364FE16C59CC8A907AFF07732");
  723. tt_int_op(i, OP_EQ, 0);
  724. i = crypto_digest512(data, (const char*)keccak_kat_msg1088, 136,
  725. DIGEST_SHA3_512);
  726. test_memeq_hex(data, "2E293765022D48996CE8EFF0BE54E87E"
  727. "FB94A14C72DE5ACD10D0EB5ECE029CAD"
  728. "FA3BA17A40B2FFA2163991B17786E51C"
  729. "ABA79E5E0FFD34CF085E2A098BE8BACB");
  730. tt_int_op(i, OP_EQ, 0);
  731. /* Len = 1096, Msg = 04410E310... ...601016A0D (SHA3-256 rate + 1) */
  732. const uint8_t keccak_kat_msg1096[] = {
  733. 0x04, 0x41, 0x0E, 0x31, 0x08, 0x2A, 0x47, 0x58, 0x4B, 0x40,
  734. 0x6F, 0x05, 0x13, 0x98, 0xA6, 0xAB, 0xE7, 0x4E, 0x4D, 0xA5,
  735. 0x9B, 0xB6, 0xF8, 0x5E, 0x6B, 0x49, 0xE8, 0xA1, 0xF7, 0xF2,
  736. 0xCA, 0x00, 0xDF, 0xBA, 0x54, 0x62, 0xC2, 0xCD, 0x2B, 0xFD,
  737. 0xE8, 0xB6, 0x4F, 0xB2, 0x1D, 0x70, 0xC0, 0x83, 0xF1, 0x13,
  738. 0x18, 0xB5, 0x6A, 0x52, 0xD0, 0x3B, 0x81, 0xCA, 0xC5, 0xEE,
  739. 0xC2, 0x9E, 0xB3, 0x1B, 0xD0, 0x07, 0x8B, 0x61, 0x56, 0x78,
  740. 0x6D, 0xA3, 0xD6, 0xD8, 0xC3, 0x30, 0x98, 0xC5, 0xC4, 0x7B,
  741. 0xB6, 0x7A, 0xC6, 0x4D, 0xB1, 0x41, 0x65, 0xAF, 0x65, 0xB4,
  742. 0x45, 0x44, 0xD8, 0x06, 0xDD, 0xE5, 0xF4, 0x87, 0xD5, 0x37,
  743. 0x3C, 0x7F, 0x97, 0x92, 0xC2, 0x99, 0xE9, 0x68, 0x6B, 0x7E,
  744. 0x58, 0x21, 0xE7, 0xC8, 0xE2, 0x45, 0x83, 0x15, 0xB9, 0x96,
  745. 0xB5, 0x67, 0x7D, 0x92, 0x6D, 0xAC, 0x57, 0xB3, 0xF2, 0x2D,
  746. 0xA8, 0x73, 0xC6, 0x01, 0x01, 0x6A, 0x0D,
  747. };
  748. i = crypto_digest256(data, (const char*)keccak_kat_msg1096, 137,
  749. DIGEST_SHA3_256);
  750. test_memeq_hex(data, "D52432CF3B6B4B949AA848E058DCD62D"
  751. "735E0177279222E7AC0AF8504762FAA0");
  752. tt_int_op(i, OP_EQ, 0);
  753. i = crypto_digest512(data, (const char*)keccak_kat_msg1096, 137,
  754. DIGEST_SHA3_512);
  755. test_memeq_hex(data, "BE8E14B6757FFE53C9B75F6DDE9A7B6C"
  756. "40474041DE83D4A60645A826D7AF1ABE"
  757. "1EEFCB7B74B62CA6A514E5F2697D585B"
  758. "FECECE12931BBE1D4ED7EBF7B0BE660E");
  759. tt_int_op(i, OP_EQ, 0);
  760. /* Len = 1144, Msg = EA40E83C... ...66DFAFEC (SHA3-512 rate *2 - 1) */
  761. const uint8_t keccak_kat_msg1144[] = {
  762. 0xEA, 0x40, 0xE8, 0x3C, 0xB1, 0x8B, 0x3A, 0x24, 0x2C, 0x1E,
  763. 0xCC, 0x6C, 0xCD, 0x0B, 0x78, 0x53, 0xA4, 0x39, 0xDA, 0xB2,
  764. 0xC5, 0x69, 0xCF, 0xC6, 0xDC, 0x38, 0xA1, 0x9F, 0x5C, 0x90,
  765. 0xAC, 0xBF, 0x76, 0xAE, 0xF9, 0xEA, 0x37, 0x42, 0xFF, 0x3B,
  766. 0x54, 0xEF, 0x7D, 0x36, 0xEB, 0x7C, 0xE4, 0xFF, 0x1C, 0x9A,
  767. 0xB3, 0xBC, 0x11, 0x9C, 0xFF, 0x6B, 0xE9, 0x3C, 0x03, 0xE2,
  768. 0x08, 0x78, 0x33, 0x35, 0xC0, 0xAB, 0x81, 0x37, 0xBE, 0x5B,
  769. 0x10, 0xCD, 0xC6, 0x6F, 0xF3, 0xF8, 0x9A, 0x1B, 0xDD, 0xC6,
  770. 0xA1, 0xEE, 0xD7, 0x4F, 0x50, 0x4C, 0xBE, 0x72, 0x90, 0x69,
  771. 0x0B, 0xB2, 0x95, 0xA8, 0x72, 0xB9, 0xE3, 0xFE, 0x2C, 0xEE,
  772. 0x9E, 0x6C, 0x67, 0xC4, 0x1D, 0xB8, 0xEF, 0xD7, 0xD8, 0x63,
  773. 0xCF, 0x10, 0xF8, 0x40, 0xFE, 0x61, 0x8E, 0x79, 0x36, 0xDA,
  774. 0x3D, 0xCA, 0x5C, 0xA6, 0xDF, 0x93, 0x3F, 0x24, 0xF6, 0x95,
  775. 0x4B, 0xA0, 0x80, 0x1A, 0x12, 0x94, 0xCD, 0x8D, 0x7E, 0x66,
  776. 0xDF, 0xAF, 0xEC,
  777. };
  778. i = crypto_digest512(data, (const char*)keccak_kat_msg1144, 143,
  779. DIGEST_SHA3_512);
  780. test_memeq_hex(data, "3A8E938C45F3F177991296B24565D9A6"
  781. "605516615D96A062C8BE53A0D6C5A648"
  782. "7BE35D2A8F3CF6620D0C2DBA2C560D68"
  783. "295F284BE7F82F3B92919033C9CE5D80");
  784. tt_int_op(i, OP_EQ, 0);
  785. i = crypto_digest256(data, (const char*)keccak_kat_msg1144, 143,
  786. DIGEST_SHA3_256);
  787. test_memeq_hex(data, "E58A947E98D6DD7E932D2FE02D9992E6"
  788. "118C0C2C606BDCDA06E7943D2C95E0E5");
  789. tt_int_op(i, OP_EQ, 0);
  790. /* Len = 1152, Msg = 157D5B7E... ...79EE00C63 (SHA3-512 rate * 2) */
  791. const uint8_t keccak_kat_msg1152[] = {
  792. 0x15, 0x7D, 0x5B, 0x7E, 0x45, 0x07, 0xF6, 0x6D, 0x9A, 0x26,
  793. 0x74, 0x76, 0xD3, 0x38, 0x31, 0xE7, 0xBB, 0x76, 0x8D, 0x4D,
  794. 0x04, 0xCC, 0x34, 0x38, 0xDA, 0x12, 0xF9, 0x01, 0x02, 0x63,
  795. 0xEA, 0x5F, 0xCA, 0xFB, 0xDE, 0x25, 0x79, 0xDB, 0x2F, 0x6B,
  796. 0x58, 0xF9, 0x11, 0xD5, 0x93, 0xD5, 0xF7, 0x9F, 0xB0, 0x5F,
  797. 0xE3, 0x59, 0x6E, 0x3F, 0xA8, 0x0F, 0xF2, 0xF7, 0x61, 0xD1,
  798. 0xB0, 0xE5, 0x70, 0x80, 0x05, 0x5C, 0x11, 0x8C, 0x53, 0xE5,
  799. 0x3C, 0xDB, 0x63, 0x05, 0x52, 0x61, 0xD7, 0xC9, 0xB2, 0xB3,
  800. 0x9B, 0xD9, 0x0A, 0xCC, 0x32, 0x52, 0x0C, 0xBB, 0xDB, 0xDA,
  801. 0x2C, 0x4F, 0xD8, 0x85, 0x6D, 0xBC, 0xEE, 0x17, 0x31, 0x32,
  802. 0xA2, 0x67, 0x91, 0x98, 0xDA, 0xF8, 0x30, 0x07, 0xA9, 0xB5,
  803. 0xC5, 0x15, 0x11, 0xAE, 0x49, 0x76, 0x6C, 0x79, 0x2A, 0x29,
  804. 0x52, 0x03, 0x88, 0x44, 0x4E, 0xBE, 0xFE, 0x28, 0x25, 0x6F,
  805. 0xB3, 0x3D, 0x42, 0x60, 0x43, 0x9C, 0xBA, 0x73, 0xA9, 0x47,
  806. 0x9E, 0xE0, 0x0C, 0x63,
  807. };
  808. i = crypto_digest512(data, (const char*)keccak_kat_msg1152, 144,
  809. DIGEST_SHA3_512);
  810. test_memeq_hex(data, "FE45289874879720CE2A844AE34BB735"
  811. "22775DCB6019DCD22B8885994672A088"
  812. "9C69E8115C641DC8B83E39F7311815A1"
  813. "64DC46E0BA2FCA344D86D4BC2EF2532C");
  814. tt_int_op(i, OP_EQ, 0);
  815. i = crypto_digest256(data, (const char*)keccak_kat_msg1152, 144,
  816. DIGEST_SHA3_256);
  817. test_memeq_hex(data, "A936FB9AF87FB67857B3EAD5C76226AD"
  818. "84DA47678F3C2FFE5A39FDB5F7E63FFB");
  819. tt_int_op(i, OP_EQ, 0);
  820. /* Len = 1160, Msg = 836B34B5... ...11044C53 (SHA3-512 rate * 2 + 1) */
  821. const uint8_t keccak_kat_msg1160[] = {
  822. 0x83, 0x6B, 0x34, 0xB5, 0x15, 0x47, 0x6F, 0x61, 0x3F, 0xE4,
  823. 0x47, 0xA4, 0xE0, 0xC3, 0xF3, 0xB8, 0xF2, 0x09, 0x10, 0xAC,
  824. 0x89, 0xA3, 0x97, 0x70, 0x55, 0xC9, 0x60, 0xD2, 0xD5, 0xD2,
  825. 0xB7, 0x2B, 0xD8, 0xAC, 0xC7, 0x15, 0xA9, 0x03, 0x53, 0x21,
  826. 0xB8, 0x67, 0x03, 0xA4, 0x11, 0xDD, 0xE0, 0x46, 0x6D, 0x58,
  827. 0xA5, 0x97, 0x69, 0x67, 0x2A, 0xA6, 0x0A, 0xD5, 0x87, 0xB8,
  828. 0x48, 0x1D, 0xE4, 0xBB, 0xA5, 0x52, 0xA1, 0x64, 0x57, 0x79,
  829. 0x78, 0x95, 0x01, 0xEC, 0x53, 0xD5, 0x40, 0xB9, 0x04, 0x82,
  830. 0x1F, 0x32, 0xB0, 0xBD, 0x18, 0x55, 0xB0, 0x4E, 0x48, 0x48,
  831. 0xF9, 0xF8, 0xCF, 0xE9, 0xEB, 0xD8, 0x91, 0x1B, 0xE9, 0x57,
  832. 0x81, 0xA7, 0x59, 0xD7, 0xAD, 0x97, 0x24, 0xA7, 0x10, 0x2D,
  833. 0xBE, 0x57, 0x67, 0x76, 0xB7, 0xC6, 0x32, 0xBC, 0x39, 0xB9,
  834. 0xB5, 0xE1, 0x90, 0x57, 0xE2, 0x26, 0x55, 0x2A, 0x59, 0x94,
  835. 0xC1, 0xDB, 0xB3, 0xB5, 0xC7, 0x87, 0x1A, 0x11, 0xF5, 0x53,
  836. 0x70, 0x11, 0x04, 0x4C, 0x53,
  837. };
  838. i = crypto_digest512(data, (const char*)keccak_kat_msg1160, 145,
  839. DIGEST_SHA3_512);
  840. test_memeq_hex(data, "AFF61C6E11B98E55AC213B1A0BC7DE04"
  841. "05221AC5EFB1229842E4614F4A029C9B"
  842. "D14A0ED7FD99AF3681429F3F309FDB53"
  843. "166AA9A3CD9F1F1223D04B4A9015E94A");
  844. tt_int_op(i, OP_EQ, 0);
  845. i = crypto_digest256(data, (const char*)keccak_kat_msg1160, 145,
  846. DIGEST_SHA3_256);
  847. test_memeq_hex(data, "3A654B88F88086C2751EDAE6D3924814"
  848. "3CF6235C6B0B7969342C45A35194B67E");
  849. tt_int_op(i, OP_EQ, 0);
  850. /* SHA3-[256,512] Empty case (wikipedia) */
  851. i = crypto_digest256(data, "", 0, DIGEST_SHA3_256);
  852. test_memeq_hex(data, "a7ffc6f8bf1ed76651c14756a061d662"
  853. "f580ff4de43b49fa82d80a4b80f8434a");
  854. tt_int_op(i, OP_EQ, 0);
  855. i = crypto_digest512(data, "", 0, DIGEST_SHA3_512);
  856. test_memeq_hex(data, "a69f73cca23a9ac5c8b567dc185a756e"
  857. "97c982164fe25859e0d1dcc1475c80a6"
  858. "15b2123af1f5f94c11e3e9402c3ac558"
  859. "f500199d95b6d3e301758586281dcd26");
  860. tt_int_op(i, OP_EQ, 0);
  861. /* Incremental digest code with SHA3-256 */
  862. d1 = crypto_digest256_new(DIGEST_SHA3_256);
  863. tt_assert(d1);
  864. crypto_digest_add_bytes(d1, "abcdef", 6);
  865. d2 = crypto_digest_dup(d1);
  866. tt_assert(d2);
  867. crypto_digest_add_bytes(d2, "ghijkl", 6);
  868. crypto_digest_get_digest(d2, d_out1, DIGEST256_LEN);
  869. crypto_digest256(d_out2, "abcdefghijkl", 12, DIGEST_SHA3_256);
  870. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST256_LEN);
  871. crypto_digest_assign(d2, d1);
  872. crypto_digest_add_bytes(d2, "mno", 3);
  873. crypto_digest_get_digest(d2, d_out1, DIGEST256_LEN);
  874. crypto_digest256(d_out2, "abcdefmno", 9, DIGEST_SHA3_256);
  875. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST256_LEN);
  876. crypto_digest_get_digest(d1, d_out1, DIGEST256_LEN);
  877. crypto_digest256(d_out2, "abcdef", 6, DIGEST_SHA3_256);
  878. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST256_LEN);
  879. crypto_digest_free(d1);
  880. crypto_digest_free(d2);
  881. /* Incremental digest code with SHA3-512 */
  882. d1 = crypto_digest512_new(DIGEST_SHA3_512);
  883. tt_assert(d1);
  884. crypto_digest_add_bytes(d1, "abcdef", 6);
  885. d2 = crypto_digest_dup(d1);
  886. tt_assert(d2);
  887. crypto_digest_add_bytes(d2, "ghijkl", 6);
  888. crypto_digest_get_digest(d2, d_out1, DIGEST512_LEN);
  889. crypto_digest512(d_out2, "abcdefghijkl", 12, DIGEST_SHA3_512);
  890. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST512_LEN);
  891. crypto_digest_assign(d2, d1);
  892. crypto_digest_add_bytes(d2, "mno", 3);
  893. crypto_digest_get_digest(d2, d_out1, DIGEST512_LEN);
  894. crypto_digest512(d_out2, "abcdefmno", 9, DIGEST_SHA3_512);
  895. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST512_LEN);
  896. crypto_digest_get_digest(d1, d_out1, DIGEST512_LEN);
  897. crypto_digest512(d_out2, "abcdef", 6, DIGEST_SHA3_512);
  898. tt_mem_op(d_out1,OP_EQ, d_out2, DIGEST512_LEN);
  899. crypto_digest_free(d1);
  900. /* Attempt to exercise the incremental hashing code by creating a randomized
  901. * 30 KiB buffer, and hashing rand[1, 5 * Rate] bytes at a time. SHA3-512
  902. * is used because it has a lowest rate of the family (the code is common,
  903. * but the slower rate exercises more of it).
  904. */
  905. const size_t bufsz = 30 * 1024;
  906. size_t j = 0;
  907. large = tor_malloc(bufsz);
  908. crypto_rand(large, bufsz);
  909. d1 = crypto_digest512_new(DIGEST_SHA3_512); /* Running digest. */
  910. while (j < bufsz) {
  911. /* Pick how much data to add to the running digest. */
  912. size_t incr = (size_t)crypto_rand_int_range(1, 72 * 5);
  913. incr = MIN(bufsz - j, incr);
  914. /* Add the data, and calculate the hash. */
  915. crypto_digest_add_bytes(d1, large + j, incr);
  916. crypto_digest_get_digest(d1, d_out1, DIGEST512_LEN);
  917. /* One-shot hash the buffer up to the data that was just added,
  918. * and ensure that the values match up.
  919. *
  920. * XXX/yawning: If this actually fails, it'll be rather difficult to
  921. * reproduce. Improvements welcome.
  922. */
  923. i = crypto_digest512(d_out2, large, j + incr, DIGEST_SHA3_512);
  924. tt_int_op(i, OP_EQ, 0);
  925. tt_mem_op(d_out1, OP_EQ, d_out2, DIGEST512_LEN);
  926. j += incr;
  927. }
  928. done:
  929. if (d1)
  930. crypto_digest_free(d1);
  931. if (d2)
  932. crypto_digest_free(d2);
  933. tor_free(large);
  934. tor_free(mem_op_hex_tmp);
  935. }
  936. /** Run unit tests for our XOF. */
  937. static void
  938. test_crypto_sha3_xof(void *arg)
  939. {
  940. uint8_t msg[255];
  941. uint8_t out[512];
  942. crypto_xof_t *xof;
  943. char *mem_op_hex_tmp=NULL;
  944. (void)arg;
  945. /* SHAKE256 test vector (Len = 2040) from the Keccak Code Package. */
  946. base16_decode((char *)msg, 255,
  947. "3A3A819C48EFDE2AD914FBF00E18AB6BC4F14513AB27D0C178A188B61431"
  948. "E7F5623CB66B23346775D386B50E982C493ADBBFC54B9A3CD383382336A1"
  949. "A0B2150A15358F336D03AE18F666C7573D55C4FD181C29E6CCFDE63EA35F"
  950. "0ADF5885CFC0A3D84A2B2E4DD24496DB789E663170CEF74798AA1BBCD457"
  951. "4EA0BBA40489D764B2F83AADC66B148B4A0CD95246C127D5871C4F114186"
  952. "90A5DDF01246A0C80A43C70088B6183639DCFDA4125BD113A8F49EE23ED3"
  953. "06FAAC576C3FB0C1E256671D817FC2534A52F5B439F72E424DE376F4C565"
  954. "CCA82307DD9EF76DA5B7C4EB7E085172E328807C02D011FFBF33785378D7"
  955. "9DC266F6A5BE6BB0E4A92ECEEBAEB1", 510);
  956. const char *squeezed_hex =
  957. "8A5199B4A7E133E264A86202720655894D48CFF344A928CF8347F48379CE"
  958. "F347DFC5BCFFAB99B27B1F89AA2735E23D30088FFA03B9EDB02B9635470A"
  959. "B9F1038985D55F9CA774572DD006470EA65145469609F9FA0831BF1FFD84"
  960. "2DC24ACADE27BD9816E3B5BF2876CB112232A0EB4475F1DFF9F5C713D9FF"
  961. "D4CCB89AE5607FE35731DF06317949EEF646E9591CF3BE53ADD6B7DD2B60"
  962. "96E2B3FB06E662EC8B2D77422DAAD9463CD155204ACDBD38E319613F39F9"
  963. "9B6DFB35CA9365160066DB19835888C2241FF9A731A4ACBB5663727AAC34"
  964. "A401247FBAA7499E7D5EE5B69D31025E63D04C35C798BCA1262D5673A9CF"
  965. "0930B5AD89BD485599DC184528DA4790F088EBD170B635D9581632D2FF90"
  966. "DB79665CED430089AF13C9F21F6D443A818064F17AEC9E9C5457001FA8DC"
  967. "6AFBADBE3138F388D89D0E6F22F66671255B210754ED63D81DCE75CE8F18"
  968. "9B534E6D6B3539AA51E837C42DF9DF59C71E6171CD4902FE1BDC73FB1775"
  969. "B5C754A1ED4EA7F3105FC543EE0418DAD256F3F6118EA77114A16C15355B"
  970. "42877A1DB2A7DF0E155AE1D8670ABCEC3450F4E2EEC9838F895423EF63D2"
  971. "61138BAAF5D9F104CB5A957AEA06C0B9B8C78B0D441796DC0350DDEABB78"
  972. "A33B6F1F9E68EDE3D1805C7B7E2CFD54E0FAD62F0D8CA67A775DC4546AF9"
  973. "096F2EDB221DB42843D65327861282DC946A0BA01A11863AB2D1DFD16E39"
  974. "73D4";
  975. /* Test oneshot absorb/squeeze. */
  976. xof = crypto_xof_new();
  977. tt_assert(xof);
  978. crypto_xof_add_bytes(xof, msg, sizeof(msg));
  979. crypto_xof_squeeze_bytes(xof, out, sizeof(out));
  980. test_memeq_hex(out, squeezed_hex);
  981. crypto_xof_free(xof);
  982. memset(out, 0, sizeof(out));
  983. /* Test incremental absorb/squeeze. */
  984. xof = crypto_xof_new();
  985. tt_assert(xof);
  986. for (size_t i = 0; i < sizeof(msg); i++)
  987. crypto_xof_add_bytes(xof, msg + i, 1);
  988. for (size_t i = 0; i < sizeof(out); i++)
  989. crypto_xof_squeeze_bytes(xof, out + i, 1);
  990. test_memeq_hex(out, squeezed_hex);
  991. done:
  992. if (xof)
  993. crypto_xof_free(xof);
  994. tor_free(mem_op_hex_tmp);
  995. }
  996. /* Test our MAC-SHA3 function. There are not actually any MAC-SHA3 test
  997. * vectors out there for our H(len(k) || k || m) construction. Hence what we
  998. * are gonna do is test our crypto_mac_sha3_256() function against manually
  999. * doing H(len(k) || k||m). If in the future the Keccak group decides to
  1000. * standarize an MAC construction and make test vectors, we should
  1001. * incorporate them here. */
  1002. static void
  1003. test_crypto_mac_sha3(void *arg)
  1004. {
  1005. const char msg[] = "i am in a library somewhere using my computer";
  1006. const char key[] = "i'm from the past talking to the future.";
  1007. uint8_t hmac_test[DIGEST256_LEN];
  1008. char hmac_manual[DIGEST256_LEN];
  1009. (void) arg;
  1010. /* First let's use our nice HMAC-SHA3 function */
  1011. crypto_mac_sha3_256(hmac_test, sizeof(hmac_test),
  1012. (uint8_t *) key, strlen(key),
  1013. (uint8_t *) msg, strlen(msg));
  1014. /* Now let's try a manual H(len(k) || k || m) construction */
  1015. {
  1016. char *key_msg_concat = NULL, *all = NULL;
  1017. int result;
  1018. const uint64_t key_len_netorder = tor_htonll(strlen(key));
  1019. size_t all_len;
  1020. tor_asprintf(&key_msg_concat, "%s%s", key, msg);
  1021. all_len = sizeof(key_len_netorder) + strlen(key_msg_concat);
  1022. all = tor_malloc_zero(all_len);
  1023. memcpy(all, &key_len_netorder, sizeof(key_len_netorder));
  1024. memcpy(all + sizeof(key_len_netorder), key_msg_concat,
  1025. strlen(key_msg_concat));
  1026. result = crypto_digest256(hmac_manual, all, all_len, DIGEST_SHA3_256);
  1027. tor_free(key_msg_concat);
  1028. tor_free(all);
  1029. tt_int_op(result, OP_EQ, 0);
  1030. }
  1031. /* Now compare the two results */
  1032. tt_mem_op(hmac_test, OP_EQ, hmac_manual, DIGEST256_LEN);
  1033. done: ;
  1034. }
  1035. /** Run unit tests for our public key crypto functions */
  1036. static void
  1037. test_crypto_pk(void *arg)
  1038. {
  1039. crypto_pk_t *pk1 = NULL, *pk2 = NULL;
  1040. char *encoded = NULL;
  1041. char data1[1024], data2[1024], data3[1024];
  1042. size_t size;
  1043. int i, len;
  1044. /* Public-key ciphers */
  1045. (void)arg;
  1046. pk1 = pk_generate(0);
  1047. pk2 = crypto_pk_new();
  1048. tt_assert(pk1 && pk2);
  1049. tt_assert(! crypto_pk_write_public_key_to_string(pk1, &encoded, &size));
  1050. tt_assert(! crypto_pk_read_public_key_from_string(pk2, encoded, size));
  1051. tt_int_op(0,OP_EQ, crypto_pk_cmp_keys(pk1, pk2));
  1052. /* comparison between keys and NULL */
  1053. tt_int_op(crypto_pk_cmp_keys(NULL, pk1), OP_LT, 0);
  1054. tt_int_op(crypto_pk_cmp_keys(NULL, NULL), OP_EQ, 0);
  1055. tt_int_op(crypto_pk_cmp_keys(pk1, NULL), OP_GT, 0);
  1056. tt_int_op(128,OP_EQ, crypto_pk_keysize(pk1));
  1057. tt_int_op(1024,OP_EQ, crypto_pk_num_bits(pk1));
  1058. tt_int_op(128,OP_EQ, crypto_pk_keysize(pk2));
  1059. tt_int_op(1024,OP_EQ, crypto_pk_num_bits(pk2));
  1060. tt_int_op(128,OP_EQ, crypto_pk_public_encrypt(pk2, data1, sizeof(data1),
  1061. "Hello whirled.", 15,
  1062. PK_PKCS1_OAEP_PADDING));
  1063. tt_int_op(128,OP_EQ, crypto_pk_public_encrypt(pk1, data2, sizeof(data1),
  1064. "Hello whirled.", 15,
  1065. PK_PKCS1_OAEP_PADDING));
  1066. /* oaep padding should make encryption not match */
  1067. tt_mem_op(data1,OP_NE, data2, 128);
  1068. tt_int_op(15,OP_EQ,
  1069. crypto_pk_private_decrypt(pk1, data3, sizeof(data3), data1, 128,
  1070. PK_PKCS1_OAEP_PADDING,1));
  1071. tt_str_op(data3,OP_EQ, "Hello whirled.");
  1072. memset(data3, 0, 1024);
  1073. tt_int_op(15,OP_EQ,
  1074. crypto_pk_private_decrypt(pk1, data3, sizeof(data3), data2, 128,
  1075. PK_PKCS1_OAEP_PADDING,1));
  1076. tt_str_op(data3,OP_EQ, "Hello whirled.");
  1077. /* Can't decrypt with public key. */
  1078. tt_int_op(-1,OP_EQ,
  1079. crypto_pk_private_decrypt(pk2, data3, sizeof(data3), data2, 128,
  1080. PK_PKCS1_OAEP_PADDING,1));
  1081. /* Try again with bad padding */
  1082. memcpy(data2+1, "XYZZY", 5); /* This has fails ~ once-in-2^40 */
  1083. tt_int_op(-1,OP_EQ,
  1084. crypto_pk_private_decrypt(pk1, data3, sizeof(data3), data2, 128,
  1085. PK_PKCS1_OAEP_PADDING,1));
  1086. /* File operations: save and load private key */
  1087. tt_assert(! crypto_pk_write_private_key_to_filename(pk1,
  1088. get_fname("pkey1")));
  1089. /* failing case for read: can't read. */
  1090. tt_int_op(crypto_pk_read_private_key_from_filename(pk2, get_fname("xyzzy")),
  1091. OP_LT, 0);
  1092. write_str_to_file(get_fname("xyzzy"), "foobar", 6);
  1093. /* Failing case for read: no key. */
  1094. tt_int_op(crypto_pk_read_private_key_from_filename(pk2, get_fname("xyzzy")),
  1095. OP_LT, 0);
  1096. tt_assert(! crypto_pk_read_private_key_from_filename(pk2,
  1097. get_fname("pkey1")));
  1098. tt_int_op(15,OP_EQ,
  1099. crypto_pk_private_decrypt(pk2, data3, sizeof(data3), data1, 128,
  1100. PK_PKCS1_OAEP_PADDING,1));
  1101. /* Now try signing. */
  1102. strlcpy(data1, "Ossifrage", 1024);
  1103. tt_int_op(128,OP_EQ,
  1104. crypto_pk_private_sign(pk1, data2, sizeof(data2), data1, 10));
  1105. tt_int_op(10,OP_EQ,
  1106. crypto_pk_public_checksig(pk1, data3, sizeof(data3), data2, 128));
  1107. tt_str_op(data3,OP_EQ, "Ossifrage");
  1108. /* Try signing digests. */
  1109. tt_int_op(128,OP_EQ, crypto_pk_private_sign_digest(pk1, data2, sizeof(data2),
  1110. data1, 10));
  1111. tt_int_op(20,OP_EQ,
  1112. crypto_pk_public_checksig(pk1, data3, sizeof(data3), data2, 128));
  1113. tt_int_op(0,OP_EQ,
  1114. crypto_pk_public_checksig_digest(pk1, data1, 10, data2, 128));
  1115. tt_int_op(-1,OP_EQ,
  1116. crypto_pk_public_checksig_digest(pk1, data1, 11, data2, 128));
  1117. /*XXXX test failed signing*/
  1118. /* Try encoding */
  1119. crypto_pk_free(pk2);
  1120. pk2 = NULL;
  1121. i = crypto_pk_asn1_encode(pk1, data1, 1024);
  1122. tt_int_op(i, OP_GT, 0);
  1123. pk2 = crypto_pk_asn1_decode(data1, i);
  1124. tt_int_op(crypto_pk_cmp_keys(pk1, pk2), OP_EQ, 0);
  1125. /* Try with hybrid encryption wrappers. */
  1126. crypto_rand(data1, 1024);
  1127. for (i = 85; i < 140; ++i) {
  1128. memset(data2,0,1024);
  1129. memset(data3,0,1024);
  1130. len = crypto_pk_obsolete_public_hybrid_encrypt(pk1,data2,sizeof(data2),
  1131. data1,i,PK_PKCS1_OAEP_PADDING,0);
  1132. tt_int_op(len, OP_GE, 0);
  1133. len = crypto_pk_obsolete_private_hybrid_decrypt(pk1,data3,sizeof(data3),
  1134. data2,len,PK_PKCS1_OAEP_PADDING,1);
  1135. tt_int_op(len,OP_EQ, i);
  1136. tt_mem_op(data1,OP_EQ, data3,i);
  1137. }
  1138. /* Try copy_full */
  1139. crypto_pk_free(pk2);
  1140. pk2 = crypto_pk_copy_full(pk1);
  1141. tt_ptr_op(pk2, OP_NE, NULL);
  1142. tt_ptr_op(pk1, OP_NE, pk2);
  1143. tt_int_op(crypto_pk_cmp_keys(pk1, pk2), OP_EQ, 0);
  1144. done:
  1145. if (pk1)
  1146. crypto_pk_free(pk1);
  1147. if (pk2)
  1148. crypto_pk_free(pk2);
  1149. tor_free(encoded);
  1150. }
  1151. static void
  1152. test_crypto_pk_fingerprints(void *arg)
  1153. {
  1154. crypto_pk_t *pk = NULL;
  1155. char encoded[512];
  1156. char d[DIGEST_LEN], d2[DIGEST_LEN];
  1157. char fingerprint[FINGERPRINT_LEN+1];
  1158. int n;
  1159. unsigned i;
  1160. char *mem_op_hex_tmp=NULL;
  1161. (void)arg;
  1162. pk = pk_generate(1);
  1163. tt_assert(pk);
  1164. n = crypto_pk_asn1_encode(pk, encoded, sizeof(encoded));
  1165. tt_int_op(n, OP_GT, 0);
  1166. tt_int_op(n, OP_GT, 128);
  1167. tt_int_op(n, OP_LT, 256);
  1168. /* Is digest as expected? */
  1169. crypto_digest(d, encoded, n);
  1170. tt_int_op(0, OP_EQ, crypto_pk_get_digest(pk, d2));
  1171. tt_mem_op(d,OP_EQ, d2, DIGEST_LEN);
  1172. /* Is fingerprint right? */
  1173. tt_int_op(0, OP_EQ, crypto_pk_get_fingerprint(pk, fingerprint, 0));
  1174. tt_int_op(strlen(fingerprint), OP_EQ, DIGEST_LEN * 2);
  1175. test_memeq_hex(d, fingerprint);
  1176. /* Are spaces right? */
  1177. tt_int_op(0, OP_EQ, crypto_pk_get_fingerprint(pk, fingerprint, 1));
  1178. for (i = 4; i < strlen(fingerprint); i += 5) {
  1179. tt_int_op(fingerprint[i], OP_EQ, ' ');
  1180. }
  1181. tor_strstrip(fingerprint, " ");
  1182. tt_int_op(strlen(fingerprint), OP_EQ, DIGEST_LEN * 2);
  1183. test_memeq_hex(d, fingerprint);
  1184. /* Now hash again and check crypto_pk_get_hashed_fingerprint. */
  1185. crypto_digest(d2, d, sizeof(d));
  1186. tt_int_op(0, OP_EQ, crypto_pk_get_hashed_fingerprint(pk, fingerprint));
  1187. tt_int_op(strlen(fingerprint), OP_EQ, DIGEST_LEN * 2);
  1188. test_memeq_hex(d2, fingerprint);
  1189. done:
  1190. crypto_pk_free(pk);
  1191. tor_free(mem_op_hex_tmp);
  1192. }
  1193. static void
  1194. test_crypto_pk_base64(void *arg)
  1195. {
  1196. crypto_pk_t *pk1 = NULL;
  1197. crypto_pk_t *pk2 = NULL;
  1198. char *encoded = NULL;
  1199. (void)arg;
  1200. /* Test Base64 encoding a key. */
  1201. pk1 = pk_generate(0);
  1202. tt_assert(pk1);
  1203. tt_int_op(0, OP_EQ, crypto_pk_base64_encode(pk1, &encoded));
  1204. tt_assert(encoded);
  1205. /* Test decoding a valid key. */
  1206. pk2 = crypto_pk_base64_decode(encoded, strlen(encoded));
  1207. tt_assert(pk2);
  1208. tt_int_op(crypto_pk_cmp_keys(pk1, pk2), OP_EQ, 0);
  1209. crypto_pk_free(pk2);
  1210. /* Test decoding a invalid key (not Base64). */
  1211. static const char *invalid_b64 = "The key is in another castle!";
  1212. pk2 = crypto_pk_base64_decode(invalid_b64, strlen(invalid_b64));
  1213. tt_ptr_op(pk2, OP_EQ, NULL);
  1214. /* Test decoding a truncated Base64 blob. */
  1215. pk2 = crypto_pk_base64_decode(encoded, strlen(encoded)/2);
  1216. tt_ptr_op(pk2, OP_EQ, NULL);
  1217. done:
  1218. crypto_pk_free(pk1);
  1219. crypto_pk_free(pk2);
  1220. tor_free(encoded);
  1221. }
  1222. #ifdef HAVE_TRUNCATE
  1223. #define do_truncate truncate
  1224. #else
  1225. static int
  1226. do_truncate(const char *fname, size_t len)
  1227. {
  1228. struct stat st;
  1229. char *bytes;
  1230. bytes = read_file_to_str(fname, RFTS_BIN, &st);
  1231. if (!bytes)
  1232. return -1;
  1233. /* This cast isn't so great, but it should be safe given the actual files
  1234. * and lengths we're using. */
  1235. if (st.st_size < (off_t)len)
  1236. len = MIN(len, (size_t)st.st_size);
  1237. int r = write_bytes_to_file(fname, bytes, len, 1);
  1238. tor_free(bytes);
  1239. return r;
  1240. }
  1241. #endif /* defined(HAVE_TRUNCATE) */
  1242. /** Sanity check for crypto pk digests */
  1243. static void
  1244. test_crypto_digests(void *arg)
  1245. {
  1246. crypto_pk_t *k = NULL;
  1247. ssize_t r;
  1248. common_digests_t pkey_digests;
  1249. char digest[DIGEST_LEN];
  1250. (void)arg;
  1251. k = crypto_pk_new();
  1252. tt_assert(k);
  1253. r = crypto_pk_read_private_key_from_string(k, AUTHORITY_SIGNKEY_3, -1);
  1254. tt_assert(!r);
  1255. r = crypto_pk_get_digest(k, digest);
  1256. tt_assert(r == 0);
  1257. tt_mem_op(hex_str(digest, DIGEST_LEN),OP_EQ,
  1258. AUTHORITY_SIGNKEY_A_DIGEST, HEX_DIGEST_LEN);
  1259. r = crypto_pk_get_common_digests(k, &pkey_digests);
  1260. tt_int_op(r, OP_EQ, 0);
  1261. tt_mem_op(hex_str(pkey_digests.d[DIGEST_SHA1], DIGEST_LEN),OP_EQ,
  1262. AUTHORITY_SIGNKEY_A_DIGEST, HEX_DIGEST_LEN);
  1263. tt_mem_op(hex_str(pkey_digests.d[DIGEST_SHA256], DIGEST256_LEN),OP_EQ,
  1264. AUTHORITY_SIGNKEY_A_DIGEST256, HEX_DIGEST256_LEN);
  1265. done:
  1266. crypto_pk_free(k);
  1267. }
  1268. static void
  1269. test_crypto_digest_names(void *arg)
  1270. {
  1271. static const struct {
  1272. int a; const char *n;
  1273. } names[] = {
  1274. { DIGEST_SHA1, "sha1" },
  1275. { DIGEST_SHA256, "sha256" },
  1276. { DIGEST_SHA512, "sha512" },
  1277. { DIGEST_SHA3_256, "sha3-256" },
  1278. { DIGEST_SHA3_512, "sha3-512" },
  1279. { -1, NULL }
  1280. };
  1281. (void)arg;
  1282. int i;
  1283. for (i = 0; names[i].n; ++i) {
  1284. tt_str_op(names[i].n, OP_EQ,crypto_digest_algorithm_get_name(names[i].a));
  1285. tt_int_op(names[i].a,
  1286. OP_EQ,crypto_digest_algorithm_parse_name(names[i].n));
  1287. }
  1288. tt_int_op(-1, OP_EQ,
  1289. crypto_digest_algorithm_parse_name("TimeCubeHash-4444"));
  1290. done:
  1291. ;
  1292. }
  1293. /** Run unit tests for misc crypto formatting functionality (base64, base32,
  1294. * fingerprints, etc) */
  1295. static void
  1296. test_crypto_formats(void *arg)
  1297. {
  1298. char *data1 = NULL, *data2 = NULL, *data3 = NULL;
  1299. int i, j, idx;
  1300. (void)arg;
  1301. data1 = tor_malloc(1024);
  1302. data2 = tor_malloc(1024);
  1303. data3 = tor_malloc(1024);
  1304. tt_assert(data1 && data2 && data3);
  1305. /* Base64 tests */
  1306. memset(data1, 6, 1024);
  1307. for (idx = 0; idx < 10; ++idx) {
  1308. i = base64_encode(data2, 1024, data1, idx, 0);
  1309. tt_int_op(i, OP_GE, 0);
  1310. tt_int_op(i, OP_EQ, strlen(data2));
  1311. j = base64_decode(data3, 1024, data2, i);
  1312. tt_int_op(j,OP_EQ, idx);
  1313. tt_mem_op(data3,OP_EQ, data1, idx);
  1314. i = base64_encode_nopad(data2, 1024, (uint8_t*)data1, idx);
  1315. tt_int_op(i, OP_GE, 0);
  1316. tt_int_op(i, OP_EQ, strlen(data2));
  1317. tt_assert(! strchr(data2, '='));
  1318. j = base64_decode(data3, 1024, data2, i);
  1319. tt_int_op(j, OP_EQ, idx);
  1320. tt_mem_op(data3,OP_EQ, data1, idx);
  1321. }
  1322. strlcpy(data1, "Test string that contains 35 chars.", 1024);
  1323. strlcat(data1, " 2nd string that contains 35 chars.", 1024);
  1324. i = base64_encode(data2, 1024, data1, 71, 0);
  1325. tt_int_op(i, OP_GE, 0);
  1326. j = base64_decode(data3, 1024, data2, i);
  1327. tt_int_op(j,OP_EQ, 71);
  1328. tt_str_op(data3,OP_EQ, data1);
  1329. tt_int_op(data2[i], OP_EQ, '\0');
  1330. crypto_rand(data1, DIGEST_LEN);
  1331. memset(data2, 100, 1024);
  1332. digest_to_base64(data2, data1);
  1333. tt_int_op(BASE64_DIGEST_LEN,OP_EQ, strlen(data2));
  1334. tt_int_op(100,OP_EQ, data2[BASE64_DIGEST_LEN+2]);
  1335. memset(data3, 99, 1024);
  1336. tt_int_op(digest_from_base64(data3, data2),OP_EQ, 0);
  1337. tt_mem_op(data1,OP_EQ, data3, DIGEST_LEN);
  1338. tt_int_op(99,OP_EQ, data3[DIGEST_LEN+1]);
  1339. tt_int_op(digest_from_base64(data3, "###"), OP_LT, 0);
  1340. /* Encoding SHA256 */
  1341. crypto_rand(data2, DIGEST256_LEN);
  1342. memset(data2, 100, 1024);
  1343. digest256_to_base64(data2, data1);
  1344. tt_int_op(BASE64_DIGEST256_LEN,OP_EQ, strlen(data2));
  1345. tt_int_op(100,OP_EQ, data2[BASE64_DIGEST256_LEN+2]);
  1346. memset(data3, 99, 1024);
  1347. tt_int_op(digest256_from_base64(data3, data2),OP_EQ, 0);
  1348. tt_mem_op(data1,OP_EQ, data3, DIGEST256_LEN);
  1349. tt_int_op(99,OP_EQ, data3[DIGEST256_LEN+1]);
  1350. /* Base32 tests */
  1351. strlcpy(data1, "5chrs", 1024);
  1352. /* bit pattern is: [35 63 68 72 73] ->
  1353. * [00110101 01100011 01101000 01110010 01110011]
  1354. * By 5s: [00110 10101 10001 10110 10000 11100 10011 10011]
  1355. */
  1356. base32_encode(data2, 9, data1, 5);
  1357. tt_str_op(data2,OP_EQ, "gvrwq4tt");
  1358. strlcpy(data1, "\xFF\xF5\x6D\x44\xAE\x0D\x5C\xC9\x62\xC4", 1024);
  1359. base32_encode(data2, 30, data1, 10);
  1360. tt_str_op(data2,OP_EQ, "772w2rfobvomsywe");
  1361. /* Base16 tests */
  1362. strlcpy(data1, "6chrs\xff", 1024);
  1363. base16_encode(data2, 13, data1, 6);
  1364. tt_str_op(data2,OP_EQ, "3663687273FF");
  1365. strlcpy(data1, "f0d678affc000100", 1024);
  1366. i = base16_decode(data2, 8, data1, 16);
  1367. tt_int_op(i,OP_EQ, 8);
  1368. tt_mem_op(data2,OP_EQ, "\xf0\xd6\x78\xaf\xfc\x00\x01\x00",8);
  1369. /* now try some failing base16 decodes */
  1370. tt_int_op(-1,OP_EQ, base16_decode(data2, 8, data1, 15)); /* odd input len */
  1371. tt_int_op(-1,OP_EQ, base16_decode(data2, 7, data1, 16)); /* dest too short */
  1372. strlcpy(data1, "f0dz!8affc000100", 1024);
  1373. tt_int_op(-1,OP_EQ, base16_decode(data2, 8, data1, 16));
  1374. tor_free(data1);
  1375. tor_free(data2);
  1376. tor_free(data3);
  1377. /* Add spaces to fingerprint */
  1378. {
  1379. data1 = tor_strdup("ABCD1234ABCD56780000ABCD1234ABCD56780000");
  1380. tt_int_op(strlen(data1),OP_EQ, 40);
  1381. data2 = tor_malloc(FINGERPRINT_LEN+1);
  1382. crypto_add_spaces_to_fp(data2, FINGERPRINT_LEN+1, data1);
  1383. tt_str_op(data2, OP_EQ,
  1384. "ABCD 1234 ABCD 5678 0000 ABCD 1234 ABCD 5678 0000");
  1385. tor_free(data1);
  1386. tor_free(data2);
  1387. }
  1388. done:
  1389. tor_free(data1);
  1390. tor_free(data2);
  1391. tor_free(data3);
  1392. }
  1393. /** Test AES-CTR encryption and decryption with IV. */
  1394. static void
  1395. test_crypto_aes_iv(void *arg)
  1396. {
  1397. char *plain, *encrypted1, *encrypted2, *decrypted1, *decrypted2;
  1398. char plain_1[1], plain_15[15], plain_16[16], plain_17[17];
  1399. char key1[16], key2[16];
  1400. ssize_t encrypted_size, decrypted_size;
  1401. int use_evp = !strcmp(arg,"evp");
  1402. evaluate_evp_for_aes(use_evp);
  1403. plain = tor_malloc(4095);
  1404. encrypted1 = tor_malloc(4095 + 1 + 16);
  1405. encrypted2 = tor_malloc(4095 + 1 + 16);
  1406. decrypted1 = tor_malloc(4095 + 1);
  1407. decrypted2 = tor_malloc(4095 + 1);
  1408. crypto_rand(plain, 4095);
  1409. crypto_rand(key1, 16);
  1410. crypto_rand(key2, 16);
  1411. crypto_rand(plain_1, 1);
  1412. crypto_rand(plain_15, 15);
  1413. crypto_rand(plain_16, 16);
  1414. crypto_rand(plain_17, 17);
  1415. key1[0] = key2[0] + 128; /* Make sure that contents are different. */
  1416. /* Encrypt and decrypt with the same key. */
  1417. encrypted_size = crypto_cipher_encrypt_with_iv(key1, encrypted1, 16 + 4095,
  1418. plain, 4095);
  1419. tt_int_op(encrypted_size,OP_EQ, 16 + 4095);
  1420. tt_assert(encrypted_size > 0); /* This is obviously true, since 4111 is
  1421. * greater than 0, but its truth is not
  1422. * obvious to all analysis tools. */
  1423. decrypted_size = crypto_cipher_decrypt_with_iv(key1, decrypted1, 4095,
  1424. encrypted1, encrypted_size);
  1425. tt_int_op(decrypted_size,OP_EQ, 4095);
  1426. tt_assert(decrypted_size > 0);
  1427. tt_mem_op(plain,OP_EQ, decrypted1, 4095);
  1428. /* Encrypt a second time (with a new random initialization vector). */
  1429. encrypted_size = crypto_cipher_encrypt_with_iv(key1, encrypted2, 16 + 4095,
  1430. plain, 4095);
  1431. tt_int_op(encrypted_size,OP_EQ, 16 + 4095);
  1432. tt_assert(encrypted_size > 0);
  1433. decrypted_size = crypto_cipher_decrypt_with_iv(key1, decrypted2, 4095,
  1434. encrypted2, encrypted_size);
  1435. tt_int_op(decrypted_size,OP_EQ, 4095);
  1436. tt_assert(decrypted_size > 0);
  1437. tt_mem_op(plain,OP_EQ, decrypted2, 4095);
  1438. tt_mem_op(encrypted1,OP_NE, encrypted2, encrypted_size);
  1439. /* Decrypt with the wrong key. */
  1440. decrypted_size = crypto_cipher_decrypt_with_iv(key2, decrypted2, 4095,
  1441. encrypted1, encrypted_size);
  1442. tt_int_op(decrypted_size,OP_EQ, 4095);
  1443. tt_mem_op(plain,OP_NE, decrypted2, decrypted_size);
  1444. /* Alter the initialization vector. */
  1445. encrypted1[0] += 42;
  1446. decrypted_size = crypto_cipher_decrypt_with_iv(key1, decrypted1, 4095,
  1447. encrypted1, encrypted_size);
  1448. tt_int_op(decrypted_size,OP_EQ, 4095);
  1449. tt_mem_op(plain,OP_NE, decrypted2, 4095);
  1450. /* Special length case: 1. */
  1451. encrypted_size = crypto_cipher_encrypt_with_iv(key1, encrypted1, 16 + 1,
  1452. plain_1, 1);
  1453. tt_int_op(encrypted_size,OP_EQ, 16 + 1);
  1454. tt_assert(encrypted_size > 0);
  1455. decrypted_size = crypto_cipher_decrypt_with_iv(key1, decrypted1, 1,
  1456. encrypted1, encrypted_size);
  1457. tt_int_op(decrypted_size,OP_EQ, 1);
  1458. tt_assert(decrypted_size > 0);
  1459. tt_mem_op(plain_1,OP_EQ, decrypted1, 1);
  1460. /* Special length case: 15. */
  1461. encrypted_size = crypto_cipher_encrypt_with_iv(key1, encrypted1, 16 + 15,
  1462. plain_15, 15);
  1463. tt_int_op(encrypted_size,OP_EQ, 16 + 15);
  1464. tt_assert(encrypted_size > 0);
  1465. decrypted_size = crypto_cipher_decrypt_with_iv(key1, decrypted1, 15,
  1466. encrypted1, encrypted_size);
  1467. tt_int_op(decrypted_size,OP_EQ, 15);
  1468. tt_assert(decrypted_size > 0);
  1469. tt_mem_op(plain_15,OP_EQ, decrypted1, 15);
  1470. /* Special length case: 16. */
  1471. encrypted_size = crypto_cipher_encrypt_with_iv(key1, encrypted1, 16 + 16,
  1472. plain_16, 16);
  1473. tt_int_op(encrypted_size,OP_EQ, 16 + 16);
  1474. tt_assert(encrypted_size > 0);
  1475. decrypted_size = crypto_cipher_decrypt_with_iv(key1, decrypted1, 16,
  1476. encrypted1, encrypted_size);
  1477. tt_int_op(decrypted_size,OP_EQ, 16);
  1478. tt_assert(decrypted_size > 0);
  1479. tt_mem_op(plain_16,OP_EQ, decrypted1, 16);
  1480. /* Special length case: 17. */
  1481. encrypted_size = crypto_cipher_encrypt_with_iv(key1, encrypted1, 16 + 17,
  1482. plain_17, 17);
  1483. tt_int_op(encrypted_size,OP_EQ, 16 + 17);
  1484. tt_assert(encrypted_size > 0);
  1485. decrypted_size = crypto_cipher_decrypt_with_iv(key1, decrypted1, 17,
  1486. encrypted1, encrypted_size);
  1487. tt_int_op(decrypted_size,OP_EQ, 17);
  1488. tt_assert(decrypted_size > 0);
  1489. tt_mem_op(plain_17,OP_EQ, decrypted1, 17);
  1490. done:
  1491. /* Free memory. */
  1492. tor_free(plain);
  1493. tor_free(encrypted1);
  1494. tor_free(encrypted2);
  1495. tor_free(decrypted1);
  1496. tor_free(decrypted2);
  1497. }
  1498. /** Test base32 decoding. */
  1499. static void
  1500. test_crypto_base32_decode(void *arg)
  1501. {
  1502. char plain[60], encoded[96 + 1], decoded[60];
  1503. int res;
  1504. (void)arg;
  1505. crypto_rand(plain, 60);
  1506. /* Encode and decode a random string. */
  1507. base32_encode(encoded, 96 + 1, plain, 60);
  1508. res = base32_decode(decoded, 60, encoded, 96);
  1509. tt_int_op(res,OP_EQ, 0);
  1510. tt_mem_op(plain,OP_EQ, decoded, 60);
  1511. /* Encode, uppercase, and decode a random string. */
  1512. base32_encode(encoded, 96 + 1, plain, 60);
  1513. tor_strupper(encoded);
  1514. res = base32_decode(decoded, 60, encoded, 96);
  1515. tt_int_op(res,OP_EQ, 0);
  1516. tt_mem_op(plain,OP_EQ, decoded, 60);
  1517. /* Change encoded string and decode. */
  1518. if (encoded[0] == 'A' || encoded[0] == 'a')
  1519. encoded[0] = 'B';
  1520. else
  1521. encoded[0] = 'A';
  1522. res = base32_decode(decoded, 60, encoded, 96);
  1523. tt_int_op(res,OP_EQ, 0);
  1524. tt_mem_op(plain,OP_NE, decoded, 60);
  1525. /* Bad encodings. */
  1526. encoded[0] = '!';
  1527. res = base32_decode(decoded, 60, encoded, 96);
  1528. tt_int_op(0, OP_GT, res);
  1529. done:
  1530. ;
  1531. }
  1532. static void
  1533. test_crypto_kdf_TAP(void *arg)
  1534. {
  1535. uint8_t key_material[100];
  1536. int r;
  1537. char *mem_op_hex_tmp = NULL;
  1538. (void)arg;
  1539. #define EXPAND(s) \
  1540. r = crypto_expand_key_material_TAP( \
  1541. (const uint8_t*)(s), strlen(s), \
  1542. key_material, 100)
  1543. /* Test vectors generated with a little python script; feel free to write
  1544. * your own. */
  1545. memset(key_material, 0, sizeof(key_material));
  1546. EXPAND("");
  1547. tt_int_op(r, OP_EQ, 0);
  1548. test_memeq_hex(key_material,
  1549. "5ba93c9db0cff93f52b521d7420e43f6eda2784fbf8b4530d8"
  1550. "d246dd74ac53a13471bba17941dff7c4ea21bb365bbeeaf5f2"
  1551. "c654883e56d11e43c44e9842926af7ca0a8cca12604f945414"
  1552. "f07b01e13da42c6cf1de3abfdea9b95f34687cbbe92b9a7383");
  1553. EXPAND("Tor");
  1554. tt_int_op(r, OP_EQ, 0);
  1555. test_memeq_hex(key_material,
  1556. "776c6214fc647aaa5f683c737ee66ec44f03d0372e1cce6922"
  1557. "7950f236ddf1e329a7ce7c227903303f525a8c6662426e8034"
  1558. "870642a6dabbd41b5d97ec9bf2312ea729992f48f8ea2d0ba8"
  1559. "3f45dfda1a80bdc8b80de01b23e3e0ffae099b3e4ccf28dc28");
  1560. EXPAND("AN ALARMING ITEM TO FIND ON A MONTHLY AUTO-DEBIT NOTICE");
  1561. tt_int_op(r, OP_EQ, 0);
  1562. test_memeq_hex(key_material,
  1563. "a340b5d126086c3ab29c2af4179196dbf95e1c72431419d331"
  1564. "4844bf8f6afb6098db952b95581fb6c33625709d6f4400b8e7"
  1565. "ace18a70579fad83c0982ef73f89395bcc39493ad53a685854"
  1566. "daf2ba9b78733b805d9a6824c907ee1dba5ac27a1e466d4d10");
  1567. done:
  1568. tor_free(mem_op_hex_tmp);
  1569. #undef EXPAND
  1570. }
  1571. static void
  1572. test_crypto_hkdf_sha256(void *arg)
  1573. {
  1574. uint8_t key_material[100];
  1575. const uint8_t salt[] = "ntor-curve25519-sha256-1:key_extract";
  1576. const size_t salt_len = strlen((char*)salt);
  1577. const uint8_t m_expand[] = "ntor-curve25519-sha256-1:key_expand";
  1578. const size_t m_expand_len = strlen((char*)m_expand);
  1579. int r;
  1580. char *mem_op_hex_tmp = NULL;
  1581. (void)arg;
  1582. #define EXPAND(s) \
  1583. r = crypto_expand_key_material_rfc5869_sha256( \
  1584. (const uint8_t*)(s), strlen(s), \
  1585. salt, salt_len, \
  1586. m_expand, m_expand_len, \
  1587. key_material, 100)
  1588. /* Test vectors generated with ntor_ref.py */
  1589. memset(key_material, 0, sizeof(key_material));
  1590. EXPAND("");
  1591. tt_int_op(r, OP_EQ, 0);
  1592. test_memeq_hex(key_material,
  1593. "d3490ed48b12a48f9547861583573fe3f19aafe3f81dc7fc75"
  1594. "eeed96d741b3290f941576c1f9f0b2d463d1ec7ab2c6bf71cd"
  1595. "d7f826c6298c00dbfe6711635d7005f0269493edf6046cc7e7"
  1596. "dcf6abe0d20c77cf363e8ffe358927817a3d3e73712cee28d8");
  1597. EXPAND("Tor");
  1598. tt_int_op(r, OP_EQ, 0);
  1599. test_memeq_hex(key_material,
  1600. "5521492a85139a8d9107a2d5c0d9c91610d0f95989975ebee6"
  1601. "c02a4f8d622a6cfdf9b7c7edd3832e2760ded1eac309b76f8d"
  1602. "66c4a3c4d6225429b3a016e3c3d45911152fc87bc2de9630c3"
  1603. "961be9fdb9f93197ea8e5977180801926d3321fa21513e59ac");
  1604. EXPAND("AN ALARMING ITEM TO FIND ON YOUR CREDIT-RATING STATEMENT");
  1605. tt_int_op(r, OP_EQ, 0);
  1606. test_memeq_hex(key_material,
  1607. "a2aa9b50da7e481d30463adb8f233ff06e9571a0ca6ab6df0f"
  1608. "b206fa34e5bc78d063fc291501beec53b36e5a0e434561200c"
  1609. "5f8bd13e0f88b3459600b4dc21d69363e2895321c06184879d"
  1610. "94b18f078411be70b767c7fc40679a9440a0c95ea83a23efbf");
  1611. done:
  1612. tor_free(mem_op_hex_tmp);
  1613. #undef EXPAND
  1614. }
  1615. static void
  1616. test_crypto_hkdf_sha256_testvecs(void *arg)
  1617. {
  1618. (void) arg;
  1619. /* Test vectors from RFC5869, sections A.1 through A.3 */
  1620. const struct {
  1621. const char *ikm16, *salt16, *info16;
  1622. int L;
  1623. const char *okm16;
  1624. } vecs[] = {
  1625. { /* from A.1 */
  1626. "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b",
  1627. "000102030405060708090a0b0c",
  1628. "f0f1f2f3f4f5f6f7f8f9",
  1629. 42,
  1630. "3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf"
  1631. "34007208d5b887185865"
  1632. },
  1633. { /* from A.2 */
  1634. "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"
  1635. "202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f"
  1636. "404142434445464748494a4b4c4d4e4f",
  1637. "606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f"
  1638. "808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f"
  1639. "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf",
  1640. "b0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecf"
  1641. "d0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5e6e7e8e9eaebecedeeef"
  1642. "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
  1643. 82,
  1644. "b11e398dc80327a1c8e7f78c596a49344f012eda2d4efad8a050cc4c19afa97c"
  1645. "59045a99cac7827271cb41c65e590e09da3275600c2f09b8367793a9aca3db71"
  1646. "cc30c58179ec3e87c14c01d5c1f3434f1d87"
  1647. },
  1648. { /* from A.3 */
  1649. "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b",
  1650. "",
  1651. "",
  1652. 42,
  1653. "8da4e775a563c18f715f802a063c5a31b8a11f5c5ee1879ec3454e5f3c738d2d"
  1654. "9d201395faa4b61a96c8",
  1655. },
  1656. { NULL, NULL, NULL, -1, NULL }
  1657. };
  1658. int i;
  1659. char *ikm = NULL;
  1660. char *salt = NULL;
  1661. char *info = NULL;
  1662. char *okm = NULL;
  1663. char *mem_op_hex_tmp = NULL;
  1664. for (i = 0; vecs[i].ikm16; ++i) {
  1665. size_t ikm_len = strlen(vecs[i].ikm16)/2;
  1666. size_t salt_len = strlen(vecs[i].salt16)/2;
  1667. size_t info_len = strlen(vecs[i].info16)/2;
  1668. size_t okm_len = vecs[i].L;
  1669. ikm = tor_malloc(ikm_len);
  1670. salt = tor_malloc(salt_len);
  1671. info = tor_malloc(info_len);
  1672. okm = tor_malloc(okm_len);
  1673. base16_decode(ikm, ikm_len, vecs[i].ikm16, strlen(vecs[i].ikm16));
  1674. base16_decode(salt, salt_len, vecs[i].salt16, strlen(vecs[i].salt16));
  1675. base16_decode(info, info_len, vecs[i].info16, strlen(vecs[i].info16));
  1676. int r = crypto_expand_key_material_rfc5869_sha256(
  1677. (const uint8_t*)ikm, ikm_len,
  1678. (const uint8_t*)salt, salt_len,
  1679. (const uint8_t*)info, info_len,
  1680. (uint8_t*)okm, okm_len);
  1681. tt_int_op(r, OP_EQ, 0);
  1682. test_memeq_hex(okm, vecs[i].okm16);
  1683. tor_free(ikm);
  1684. tor_free(salt);
  1685. tor_free(info);
  1686. tor_free(okm);
  1687. }
  1688. done:
  1689. tor_free(ikm);
  1690. tor_free(salt);
  1691. tor_free(info);
  1692. tor_free(okm);
  1693. tor_free(mem_op_hex_tmp);
  1694. }
  1695. static void
  1696. test_crypto_curve25519_impl(void *arg)
  1697. {
  1698. /* adapted from curve25519_donna, which adapted it from test-curve25519
  1699. version 20050915, by D. J. Bernstein, Public domain. */
  1700. const int randomize_high_bit = (arg != NULL);
  1701. #ifdef SLOW_CURVE25519_TEST
  1702. const int loop_max=10000;
  1703. const char e1_expected[] = "4faf81190869fd742a33691b0e0824d5"
  1704. "7e0329f4dd2819f5f32d130f1296b500";
  1705. const char e2k_expected[] = "05aec13f92286f3a781ccae98995a3b9"
  1706. "e0544770bc7de853b38f9100489e3e79";
  1707. const char e1e2k_expected[] = "cd6e8269104eb5aaee886bd2071fba88"
  1708. "bd13861475516bc2cd2b6e005e805064";
  1709. #else /* !(defined(SLOW_CURVE25519_TEST)) */
  1710. const int loop_max=200;
  1711. const char e1_expected[] = "bc7112cde03f97ef7008cad1bdc56be3"
  1712. "c6a1037d74cceb3712e9206871dcf654";
  1713. const char e2k_expected[] = "dd8fa254fb60bdb5142fe05b1f5de44d"
  1714. "8e3ee1a63c7d14274ea5d4c67f065467";
  1715. const char e1e2k_expected[] = "7ddb98bd89025d2347776b33901b3e7e"
  1716. "c0ee98cb2257a4545c0cfb2ca3e1812b";
  1717. #endif /* defined(SLOW_CURVE25519_TEST) */
  1718. unsigned char e1k[32];
  1719. unsigned char e2k[32];
  1720. unsigned char e1e2k[32];
  1721. unsigned char e2e1k[32];
  1722. unsigned char e1[32] = {3};
  1723. unsigned char e2[32] = {5};
  1724. unsigned char k[32] = {9};
  1725. int loop, i;
  1726. char *mem_op_hex_tmp = NULL;
  1727. for (loop = 0; loop < loop_max; ++loop) {
  1728. curve25519_impl(e1k,e1,k);
  1729. curve25519_impl(e2e1k,e2,e1k);
  1730. curve25519_impl(e2k,e2,k);
  1731. if (randomize_high_bit) {
  1732. /* We require that the high bit of the public key be ignored. So if
  1733. * we're doing this variant test, we randomize the high bit of e2k, and
  1734. * make sure that the handshake still works out the same as it would
  1735. * otherwise. */
  1736. uint8_t byte;
  1737. crypto_rand((char*)&byte, 1);
  1738. e2k[31] |= (byte & 0x80);
  1739. }
  1740. curve25519_impl(e1e2k,e1,e2k);
  1741. tt_mem_op(e1e2k,OP_EQ, e2e1k, 32);
  1742. if (loop == loop_max-1) {
  1743. break;
  1744. }
  1745. for (i = 0;i < 32;++i) e1[i] ^= e2k[i];
  1746. for (i = 0;i < 32;++i) e2[i] ^= e1k[i];
  1747. for (i = 0;i < 32;++i) k[i] ^= e1e2k[i];
  1748. }
  1749. test_memeq_hex(e1, e1_expected);
  1750. test_memeq_hex(e2k, e2k_expected);
  1751. test_memeq_hex(e1e2k, e1e2k_expected);
  1752. done:
  1753. tor_free(mem_op_hex_tmp);
  1754. }
  1755. static void
  1756. test_crypto_curve25519_basepoint(void *arg)
  1757. {
  1758. uint8_t secret[32];
  1759. uint8_t public1[32];
  1760. uint8_t public2[32];
  1761. const int iters = 2048;
  1762. int i;
  1763. (void) arg;
  1764. for (i = 0; i < iters; ++i) {
  1765. crypto_rand((char*)secret, 32);
  1766. curve25519_set_impl_params(1); /* Use optimization */
  1767. curve25519_basepoint_impl(public1, secret);
  1768. curve25519_set_impl_params(0); /* Disable optimization */
  1769. curve25519_basepoint_impl(public2, secret);
  1770. tt_mem_op(public1, OP_EQ, public2, 32);
  1771. }
  1772. done:
  1773. ;
  1774. }
  1775. static void
  1776. test_crypto_curve25519_testvec(void *arg)
  1777. {
  1778. (void)arg;
  1779. char *mem_op_hex_tmp = NULL;
  1780. /* From RFC 7748, section 6.1 */
  1781. /* Alice's private key, a: */
  1782. const char a16[] =
  1783. "77076d0a7318a57d3c16c17251b26645df4c2f87ebc0992ab177fba51db92c2a";
  1784. /* Alice's public key, X25519(a, 9): */
  1785. const char a_pub16[] =
  1786. "8520f0098930a754748b7ddcb43ef75a0dbf3a0d26381af4eba4a98eaa9b4e6a";
  1787. /* Bob's private key, b: */
  1788. const char b16[] =
  1789. "5dab087e624a8a4b79e17f8b83800ee66f3bb1292618b6fd1c2f8b27ff88e0eb";
  1790. /* Bob's public key, X25519(b, 9): */
  1791. const char b_pub16[] =
  1792. "de9edb7d7b7dc1b4d35b61c2ece435373f8343c85b78674dadfc7e146f882b4f";
  1793. /* Their shared secret, K: */
  1794. const char k16[] =
  1795. "4a5d9d5ba4ce2de1728e3bf480350f25e07e21c947d19e3376f09b3c1e161742";
  1796. uint8_t a[32], b[32], a_pub[32], b_pub[32], k1[32], k2[32];
  1797. base16_decode((char*)a, sizeof(a), a16, strlen(a16));
  1798. base16_decode((char*)b, sizeof(b), b16, strlen(b16));
  1799. curve25519_basepoint_impl(a_pub, a);
  1800. curve25519_basepoint_impl(b_pub, b);
  1801. curve25519_impl(k1, a, b_pub);
  1802. curve25519_impl(k2, b, a_pub);
  1803. test_memeq_hex(a, a16);
  1804. test_memeq_hex(b, b16);
  1805. test_memeq_hex(a_pub, a_pub16);
  1806. test_memeq_hex(b_pub, b_pub16);
  1807. test_memeq_hex(k1, k16);
  1808. test_memeq_hex(k2, k16);
  1809. done:
  1810. tor_free(mem_op_hex_tmp);
  1811. }
  1812. static void
  1813. test_crypto_curve25519_wrappers(void *arg)
  1814. {
  1815. curve25519_public_key_t pubkey1, pubkey2;
  1816. curve25519_secret_key_t seckey1, seckey2;
  1817. uint8_t output1[CURVE25519_OUTPUT_LEN];
  1818. uint8_t output2[CURVE25519_OUTPUT_LEN];
  1819. (void)arg;
  1820. /* Test a simple handshake, serializing and deserializing some stuff. */
  1821. curve25519_secret_key_generate(&seckey1, 0);
  1822. curve25519_secret_key_generate(&seckey2, 1);
  1823. curve25519_public_key_generate(&pubkey1, &seckey1);
  1824. curve25519_public_key_generate(&pubkey2, &seckey2);
  1825. tt_assert(curve25519_public_key_is_ok(&pubkey1));
  1826. tt_assert(curve25519_public_key_is_ok(&pubkey2));
  1827. curve25519_handshake(output1, &seckey1, &pubkey2);
  1828. curve25519_handshake(output2, &seckey2, &pubkey1);
  1829. tt_mem_op(output1,OP_EQ, output2, sizeof(output1));
  1830. done:
  1831. ;
  1832. }
  1833. static void
  1834. test_crypto_curve25519_encode(void *arg)
  1835. {
  1836. curve25519_secret_key_t seckey;
  1837. curve25519_public_key_t key1, key2, key3;
  1838. char buf[64];
  1839. (void)arg;
  1840. curve25519_secret_key_generate(&seckey, 0);
  1841. curve25519_public_key_generate(&key1, &seckey);
  1842. tt_int_op(0, OP_EQ, curve25519_public_to_base64(buf, &key1));
  1843. tt_int_op(CURVE25519_BASE64_PADDED_LEN, OP_EQ, strlen(buf));
  1844. tt_int_op(0, OP_EQ, curve25519_public_from_base64(&key2, buf));
  1845. tt_mem_op(key1.public_key,OP_EQ, key2.public_key, CURVE25519_PUBKEY_LEN);
  1846. buf[CURVE25519_BASE64_PADDED_LEN - 1] = '\0';
  1847. tt_int_op(CURVE25519_BASE64_PADDED_LEN-1, OP_EQ, strlen(buf));
  1848. tt_int_op(0, OP_EQ, curve25519_public_from_base64(&key3, buf));
  1849. tt_mem_op(key1.public_key,OP_EQ, key3.public_key, CURVE25519_PUBKEY_LEN);
  1850. /* Now try bogus parses. */
  1851. strlcpy(buf, "$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$=", sizeof(buf));
  1852. tt_int_op(-1, OP_EQ, curve25519_public_from_base64(&key3, buf));
  1853. strlcpy(buf, "$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$", sizeof(buf));
  1854. tt_int_op(-1, OP_EQ, curve25519_public_from_base64(&key3, buf));
  1855. strlcpy(buf, "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", sizeof(buf));
  1856. tt_int_op(-1, OP_EQ, curve25519_public_from_base64(&key3, buf));
  1857. done:
  1858. ;
  1859. }
  1860. static void
  1861. test_crypto_curve25519_persist(void *arg)
  1862. {
  1863. curve25519_keypair_t keypair, keypair2;
  1864. char *fname = tor_strdup(get_fname("curve25519_keypair"));
  1865. char *tag = NULL;
  1866. char *content = NULL;
  1867. const char *cp;
  1868. struct stat st;
  1869. size_t taglen;
  1870. (void)arg;
  1871. tt_int_op(0,OP_EQ,curve25519_keypair_generate(&keypair, 0));
  1872. tt_int_op(0,OP_EQ,
  1873. curve25519_keypair_write_to_file(&keypair, fname, "testing"));
  1874. tt_int_op(0,OP_EQ,curve25519_keypair_read_from_file(&keypair2, &tag, fname));
  1875. tt_str_op(tag,OP_EQ,"testing");
  1876. tor_free(tag);
  1877. tt_mem_op(keypair.pubkey.public_key,OP_EQ,
  1878. keypair2.pubkey.public_key,
  1879. CURVE25519_PUBKEY_LEN);
  1880. tt_mem_op(keypair.seckey.secret_key,OP_EQ,
  1881. keypair2.seckey.secret_key,
  1882. CURVE25519_SECKEY_LEN);
  1883. content = read_file_to_str(fname, RFTS_BIN, &st);
  1884. tt_assert(content);
  1885. taglen = strlen("== c25519v1: testing ==");
  1886. tt_u64_op((uint64_t)st.st_size, OP_EQ,
  1887. 32+CURVE25519_PUBKEY_LEN+CURVE25519_SECKEY_LEN);
  1888. tt_assert(fast_memeq(content, "== c25519v1: testing ==", taglen));
  1889. tt_assert(tor_mem_is_zero(content+taglen, 32-taglen));
  1890. cp = content + 32;
  1891. tt_mem_op(keypair.seckey.secret_key,OP_EQ,
  1892. cp,
  1893. CURVE25519_SECKEY_LEN);
  1894. cp += CURVE25519_SECKEY_LEN;
  1895. tt_mem_op(keypair.pubkey.public_key,OP_EQ,
  1896. cp,
  1897. CURVE25519_SECKEY_LEN);
  1898. tor_free(fname);
  1899. fname = tor_strdup(get_fname("bogus_keypair"));
  1900. tt_int_op(-1, OP_EQ,
  1901. curve25519_keypair_read_from_file(&keypair2, &tag, fname));
  1902. tor_free(tag);
  1903. content[69] ^= 0xff;
  1904. tt_int_op(0, OP_EQ,
  1905. write_bytes_to_file(fname, content, (size_t)st.st_size, 1));
  1906. tt_int_op(-1, OP_EQ,
  1907. curve25519_keypair_read_from_file(&keypair2, &tag, fname));
  1908. done:
  1909. tor_free(fname);
  1910. tor_free(content);
  1911. tor_free(tag);
  1912. }
  1913. static void
  1914. test_crypto_ed25519_simple(void *arg)
  1915. {
  1916. ed25519_keypair_t kp1, kp2;
  1917. ed25519_public_key_t pub1, pub2;
  1918. ed25519_secret_key_t sec1, sec2;
  1919. ed25519_signature_t sig1, sig2;
  1920. const uint8_t msg[] =
  1921. "GNU will be able to run Unix programs, "
  1922. "but will not be identical to Unix.";
  1923. const uint8_t msg2[] =
  1924. "Microsoft Windows extends the features of the DOS operating system, "
  1925. "yet is compatible with most existing applications that run under DOS.";
  1926. size_t msg_len = strlen((const char*)msg);
  1927. size_t msg2_len = strlen((const char*)msg2);
  1928. (void)arg;
  1929. tt_int_op(0, OP_EQ, ed25519_secret_key_generate(&sec1, 0));
  1930. tt_int_op(0, OP_EQ, ed25519_secret_key_generate(&sec2, 1));
  1931. tt_int_op(0, OP_EQ, ed25519_public_key_generate(&pub1, &sec1));
  1932. tt_int_op(0, OP_EQ, ed25519_public_key_generate(&pub2, &sec1));
  1933. tt_int_op(ed25519_validate_pubkey(&pub1), OP_EQ, 0);
  1934. tt_int_op(ed25519_validate_pubkey(&pub2), OP_EQ, 0);
  1935. tt_mem_op(pub1.pubkey, OP_EQ, pub2.pubkey, sizeof(pub1.pubkey));
  1936. tt_assert(ed25519_pubkey_eq(&pub1, &pub2));
  1937. tt_assert(ed25519_pubkey_eq(&pub1, &pub1));
  1938. memcpy(&kp1.pubkey, &pub1, sizeof(pub1));
  1939. memcpy(&kp1.seckey, &sec1, sizeof(sec1));
  1940. tt_int_op(0, OP_EQ, ed25519_sign(&sig1, msg, msg_len, &kp1));
  1941. tt_int_op(0, OP_EQ, ed25519_sign(&sig2, msg, msg_len, &kp1));
  1942. /* Ed25519 signatures are deterministic */
  1943. tt_mem_op(sig1.sig, OP_EQ, sig2.sig, sizeof(sig1.sig));
  1944. /* Basic signature is valid. */
  1945. tt_int_op(0, OP_EQ, ed25519_checksig(&sig1, msg, msg_len, &pub1));
  1946. /* Altered signature doesn't work. */
  1947. sig1.sig[0] ^= 3;
  1948. tt_int_op(-1, OP_EQ, ed25519_checksig(&sig1, msg, msg_len, &pub1));
  1949. /* Wrong public key doesn't work. */
  1950. tt_int_op(0, OP_EQ, ed25519_public_key_generate(&pub2, &sec2));
  1951. tt_int_op(-1, OP_EQ, ed25519_checksig(&sig2, msg, msg_len, &pub2));
  1952. tt_assert(! ed25519_pubkey_eq(&pub1, &pub2));
  1953. /* Wrong message doesn't work. */
  1954. tt_int_op(0, OP_EQ, ed25519_checksig(&sig2, msg, msg_len, &pub1));
  1955. tt_int_op(-1, OP_EQ, ed25519_checksig(&sig2, msg, msg_len-1, &pub1));
  1956. tt_int_op(-1, OP_EQ, ed25519_checksig(&sig2, msg2, msg2_len, &pub1));
  1957. /* Batch signature checking works with some bad. */
  1958. tt_int_op(0, OP_EQ, ed25519_keypair_generate(&kp2, 0));
  1959. tt_int_op(0, OP_EQ, ed25519_sign(&sig1, msg, msg_len, &kp2));
  1960. {
  1961. ed25519_checkable_t ch[] = {
  1962. { &pub1, sig2, msg, msg_len }, /*ok*/
  1963. { &pub1, sig2, msg, msg_len-1 }, /*bad*/
  1964. { &kp2.pubkey, sig2, msg2, msg2_len }, /*bad*/
  1965. { &kp2.pubkey, sig1, msg, msg_len }, /*ok*/
  1966. };
  1967. int okay[4];
  1968. tt_int_op(-2, OP_EQ, ed25519_checksig_batch(okay, ch, 4));
  1969. tt_int_op(okay[0], OP_EQ, 1);
  1970. tt_int_op(okay[1], OP_EQ, 0);
  1971. tt_int_op(okay[2], OP_EQ, 0);
  1972. tt_int_op(okay[3], OP_EQ, 1);
  1973. tt_int_op(-2, OP_EQ, ed25519_checksig_batch(NULL, ch, 4));
  1974. }
  1975. /* Batch signature checking works with all good. */
  1976. {
  1977. ed25519_checkable_t ch[] = {
  1978. { &pub1, sig2, msg, msg_len }, /*ok*/
  1979. { &kp2.pubkey, sig1, msg, msg_len }, /*ok*/
  1980. };
  1981. int okay[2];
  1982. tt_int_op(0, OP_EQ, ed25519_checksig_batch(okay, ch, 2));
  1983. tt_int_op(okay[0], OP_EQ, 1);
  1984. tt_int_op(okay[1], OP_EQ, 1);
  1985. tt_int_op(0, OP_EQ, ed25519_checksig_batch(NULL, ch, 2));
  1986. }
  1987. /* Test the string-prefixed sign/checksig functions */
  1988. {
  1989. ed25519_signature_t manual_sig;
  1990. char *prefixed_msg;
  1991. /* Generate a signature with a prefixed msg. */
  1992. tt_int_op(0, OP_EQ, ed25519_sign_prefixed(&sig1, msg, msg_len,
  1993. "always in the mood",
  1994. &kp1));
  1995. /* First, check that ed25519_sign_prefixed() returns the exact same sig as
  1996. if we had manually prefixed the msg ourselves. */
  1997. tor_asprintf(&prefixed_msg, "%s%s", "always in the mood", msg);
  1998. tt_int_op(0, OP_EQ, ed25519_sign(&manual_sig, (uint8_t *)prefixed_msg,
  1999. strlen(prefixed_msg), &kp1));
  2000. tor_free(prefixed_msg);
  2001. tt_assert(fast_memeq(sig1.sig, manual_sig.sig, sizeof(sig1.sig)));
  2002. /* Test that prefixed checksig verifies it properly. */
  2003. tt_int_op(0, OP_EQ, ed25519_checksig_prefixed(&sig1, msg, msg_len,
  2004. "always in the mood",
  2005. &pub1));
  2006. /* Test that checksig with wrong prefix fails. */
  2007. tt_int_op(-1, OP_EQ, ed25519_checksig_prefixed(&sig1, msg, msg_len,
  2008. "always in the moo",
  2009. &pub1));
  2010. tt_int_op(-1, OP_EQ, ed25519_checksig_prefixed(&sig1, msg, msg_len,
  2011. "always in the moon",
  2012. &pub1));
  2013. tt_int_op(-1, OP_EQ, ed25519_checksig_prefixed(&sig1, msg, msg_len,
  2014. "always in the mood!",
  2015. &pub1));
  2016. }
  2017. done:
  2018. ;
  2019. }
  2020. static void
  2021. test_crypto_ed25519_test_vectors(void *arg)
  2022. {
  2023. char *mem_op_hex_tmp=NULL;
  2024. int i;
  2025. struct {
  2026. const char *sk;
  2027. const char *pk;
  2028. const char *sig;
  2029. const char *msg;
  2030. } items[] = {
  2031. /* These test vectors were generated with the "ref" implementation of
  2032. * ed25519 from SUPERCOP-20130419 */
  2033. { "4c6574277320686f706520746865726520617265206e6f206275677320696e20",
  2034. "f3e0e493b30f56e501aeb868fc912fe0c8b76621efca47a78f6d75875193dd87",
  2035. "b5d7fd6fd3adf643647ce1fe87a2931dedd1a4e38e6c662bedd35cdd80bfac51"
  2036. "1b2c7d1ee6bd929ac213014e1a8dc5373854c7b25dbe15ec96bf6c94196fae06",
  2037. "506c6561736520657863757365206d7920667269656e642e2048652069736e2774"
  2038. "204e554c2d7465726d696e617465642e"
  2039. },
  2040. { "74686520696d706c656d656e746174696f6e20776869636820617265206e6f74",
  2041. "407f0025a1e1351a4cb68e92f5c0ebaf66e7aaf93a4006a4d1a66e3ede1cfeac",
  2042. "02884fde1c3c5944d0ecf2d133726fc820c303aae695adceabf3a1e01e95bf28"
  2043. "da88c0966f5265e9c6f8edc77b3b96b5c91baec3ca993ccd21a3f64203600601",
  2044. "506c6561736520657863757365206d7920667269656e642e2048652069736e2774"
  2045. "204e554c2d7465726d696e617465642e"
  2046. },
  2047. { "6578706f73656420627920456e676c697368207465787420617320696e707574",
  2048. "61681cb5fbd69f9bc5a462a21a7ab319011237b940bc781cdc47fcbe327e7706",
  2049. "6a127d0414de7510125d4bc214994ffb9b8857a46330832d05d1355e882344ad"
  2050. "f4137e3ca1f13eb9cc75c887ef2309b98c57528b4acd9f6376c6898889603209",
  2051. "506c6561736520657863757365206d7920667269656e642e2048652069736e2774"
  2052. "204e554c2d7465726d696e617465642e"
  2053. },
  2054. /* These come from "sign.input" in ed25519's page */
  2055. { "5b5a619f8ce1c66d7ce26e5a2ae7b0c04febcd346d286c929e19d0d5973bfef9",
  2056. "6fe83693d011d111131c4f3fbaaa40a9d3d76b30012ff73bb0e39ec27ab18257",
  2057. "0f9ad9793033a2fa06614b277d37381e6d94f65ac2a5a94558d09ed6ce922258"
  2058. "c1a567952e863ac94297aec3c0d0c8ddf71084e504860bb6ba27449b55adc40e",
  2059. "5a8d9d0a22357e6655f9c785"
  2060. },
  2061. { "940c89fe40a81dafbdb2416d14ae469119869744410c3303bfaa0241dac57800",
  2062. "a2eb8c0501e30bae0cf842d2bde8dec7386f6b7fc3981b8c57c9792bb94cf2dd",
  2063. "d8bb64aad8c9955a115a793addd24f7f2b077648714f49c4694ec995b330d09d"
  2064. "640df310f447fd7b6cb5c14f9fe9f490bcf8cfadbfd2169c8ac20d3b8af49a0c",
  2065. "b87d3813e03f58cf19fd0b6395"
  2066. },
  2067. { "9acad959d216212d789a119252ebfe0c96512a23c73bd9f3b202292d6916a738",
  2068. "cf3af898467a5b7a52d33d53bc037e2642a8da996903fc252217e9c033e2f291",
  2069. "6ee3fe81e23c60eb2312b2006b3b25e6838e02106623f844c44edb8dafd66ab0"
  2070. "671087fd195df5b8f58a1d6e52af42908053d55c7321010092748795ef94cf06",
  2071. "55c7fa434f5ed8cdec2b7aeac173",
  2072. },
  2073. { "d5aeee41eeb0e9d1bf8337f939587ebe296161e6bf5209f591ec939e1440c300",
  2074. "fd2a565723163e29f53c9de3d5e8fbe36a7ab66e1439ec4eae9c0a604af291a5",
  2075. "f68d04847e5b249737899c014d31c805c5007a62c0a10d50bb1538c5f3550395"
  2076. "1fbc1e08682f2cc0c92efe8f4985dec61dcbd54d4b94a22547d24451271c8b00",
  2077. "0a688e79be24f866286d4646b5d81c"
  2078. },
  2079. /* These come from draft-irtf-cfrg-eddsa-05 section 7.1 */
  2080. {
  2081. "9d61b19deffd5a60ba844af492ec2cc44449c5697b326919703bac031cae7f60",
  2082. "d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a",
  2083. "e5564300c360ac729086e2cc806e828a84877f1eb8e5d974d873e06522490155"
  2084. "5fb8821590a33bacc61e39701cf9b46bd25bf5f0595bbe24655141438e7a100b",
  2085. ""
  2086. },
  2087. {
  2088. "4ccd089b28ff96da9db6c346ec114e0f5b8a319f35aba624da8cf6ed4fb8a6fb",
  2089. "3d4017c3e843895a92b70aa74d1b7ebc9c982ccf2ec4968cc0cd55f12af4660c",
  2090. "92a009a9f0d4cab8720e820b5f642540a2b27b5416503f8fb3762223ebdb69da"
  2091. "085ac1e43e15996e458f3613d0f11d8c387b2eaeb4302aeeb00d291612bb0c00",
  2092. "72"
  2093. },
  2094. {
  2095. "f5e5767cf153319517630f226876b86c8160cc583bc013744c6bf255f5cc0ee5",
  2096. "278117fc144c72340f67d0f2316e8386ceffbf2b2428c9c51fef7c597f1d426e",
  2097. "0aab4c900501b3e24d7cdf4663326a3a87df5e4843b2cbdb67cbf6e460fec350"
  2098. "aa5371b1508f9f4528ecea23c436d94b5e8fcd4f681e30a6ac00a9704a188a03",
  2099. "08b8b2b733424243760fe426a4b54908632110a66c2f6591eabd3345e3e4eb98"
  2100. "fa6e264bf09efe12ee50f8f54e9f77b1e355f6c50544e23fb1433ddf73be84d8"
  2101. "79de7c0046dc4996d9e773f4bc9efe5738829adb26c81b37c93a1b270b20329d"
  2102. "658675fc6ea534e0810a4432826bf58c941efb65d57a338bbd2e26640f89ffbc"
  2103. "1a858efcb8550ee3a5e1998bd177e93a7363c344fe6b199ee5d02e82d522c4fe"
  2104. "ba15452f80288a821a579116ec6dad2b3b310da903401aa62100ab5d1a36553e"
  2105. "06203b33890cc9b832f79ef80560ccb9a39ce767967ed628c6ad573cb116dbef"
  2106. "efd75499da96bd68a8a97b928a8bbc103b6621fcde2beca1231d206be6cd9ec7"
  2107. "aff6f6c94fcd7204ed3455c68c83f4a41da4af2b74ef5c53f1d8ac70bdcb7ed1"
  2108. "85ce81bd84359d44254d95629e9855a94a7c1958d1f8ada5d0532ed8a5aa3fb2"
  2109. "d17ba70eb6248e594e1a2297acbbb39d502f1a8c6eb6f1ce22b3de1a1f40cc24"
  2110. "554119a831a9aad6079cad88425de6bde1a9187ebb6092cf67bf2b13fd65f270"
  2111. "88d78b7e883c8759d2c4f5c65adb7553878ad575f9fad878e80a0c9ba63bcbcc"
  2112. "2732e69485bbc9c90bfbd62481d9089beccf80cfe2df16a2cf65bd92dd597b07"
  2113. "07e0917af48bbb75fed413d238f5555a7a569d80c3414a8d0859dc65a46128ba"
  2114. "b27af87a71314f318c782b23ebfe808b82b0ce26401d2e22f04d83d1255dc51a"
  2115. "ddd3b75a2b1ae0784504df543af8969be3ea7082ff7fc9888c144da2af58429e"
  2116. "c96031dbcad3dad9af0dcbaaaf268cb8fcffead94f3c7ca495e056a9b47acdb7"
  2117. "51fb73e666c6c655ade8297297d07ad1ba5e43f1bca32301651339e22904cc8c"
  2118. "42f58c30c04aafdb038dda0847dd988dcda6f3bfd15c4b4c4525004aa06eeff8"
  2119. "ca61783aacec57fb3d1f92b0fe2fd1a85f6724517b65e614ad6808d6f6ee34df"
  2120. "f7310fdc82aebfd904b01e1dc54b2927094b2db68d6f903b68401adebf5a7e08"
  2121. "d78ff4ef5d63653a65040cf9bfd4aca7984a74d37145986780fc0b16ac451649"
  2122. "de6188a7dbdf191f64b5fc5e2ab47b57f7f7276cd419c17a3ca8e1b939ae49e4"
  2123. "88acba6b965610b5480109c8b17b80e1b7b750dfc7598d5d5011fd2dcc5600a3"
  2124. "2ef5b52a1ecc820e308aa342721aac0943bf6686b64b2579376504ccc493d97e"
  2125. "6aed3fb0f9cd71a43dd497f01f17c0e2cb3797aa2a2f256656168e6c496afc5f"
  2126. "b93246f6b1116398a346f1a641f3b041e989f7914f90cc2c7fff357876e506b5"
  2127. "0d334ba77c225bc307ba537152f3f1610e4eafe595f6d9d90d11faa933a15ef1"
  2128. "369546868a7f3a45a96768d40fd9d03412c091c6315cf4fde7cb68606937380d"
  2129. "b2eaaa707b4c4185c32eddcdd306705e4dc1ffc872eeee475a64dfac86aba41c"
  2130. "0618983f8741c5ef68d3a101e8a3b8cac60c905c15fc910840b94c00a0b9d0"
  2131. },
  2132. {
  2133. "833fe62409237b9d62ec77587520911e9a759cec1d19755b7da901b96dca3d42",
  2134. "ec172b93ad5e563bf4932c70e1245034c35467ef2efd4d64ebf819683467e2bf",
  2135. "dc2a4459e7369633a52b1bf277839a00201009a3efbf3ecb69bea2186c26b589"
  2136. "09351fc9ac90b3ecfdfbc7c66431e0303dca179c138ac17ad9bef1177331a704",
  2137. "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a"
  2138. "2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f"
  2139. },
  2140. { NULL, NULL, NULL, NULL}
  2141. };
  2142. (void)arg;
  2143. for (i = 0; items[i].pk; ++i) {
  2144. ed25519_keypair_t kp;
  2145. ed25519_signature_t sig;
  2146. uint8_t sk_seed[32];
  2147. uint8_t *msg;
  2148. size_t msg_len;
  2149. base16_decode((char*)sk_seed, sizeof(sk_seed),
  2150. items[i].sk, 64);
  2151. ed25519_secret_key_from_seed(&kp.seckey, sk_seed);
  2152. tt_int_op(0, OP_EQ, ed25519_public_key_generate(&kp.pubkey, &kp.seckey));
  2153. test_memeq_hex(kp.pubkey.pubkey, items[i].pk);
  2154. msg_len = strlen(items[i].msg) / 2;
  2155. msg = tor_malloc(msg_len);
  2156. base16_decode((char*)msg, msg_len, items[i].msg, strlen(items[i].msg));
  2157. tt_int_op(0, OP_EQ, ed25519_sign(&sig, msg, msg_len, &kp));
  2158. test_memeq_hex(sig.sig, items[i].sig);
  2159. tor_free(msg);
  2160. }
  2161. done:
  2162. tor_free(mem_op_hex_tmp);
  2163. }
  2164. static void
  2165. test_crypto_ed25519_encode(void *arg)
  2166. {
  2167. char buf[ED25519_SIG_BASE64_LEN+1];
  2168. ed25519_keypair_t kp;
  2169. ed25519_public_key_t pk;
  2170. ed25519_signature_t sig1, sig2;
  2171. char *mem_op_hex_tmp = NULL;
  2172. (void) arg;
  2173. /* Test roundtrip. */
  2174. tt_int_op(0, OP_EQ, ed25519_keypair_generate(&kp, 0));
  2175. tt_int_op(0, OP_EQ, ed25519_public_to_base64(buf, &kp.pubkey));
  2176. tt_int_op(ED25519_BASE64_LEN, OP_EQ, strlen(buf));
  2177. tt_int_op(0, OP_EQ, ed25519_public_from_base64(&pk, buf));
  2178. tt_mem_op(kp.pubkey.pubkey, OP_EQ, pk.pubkey, ED25519_PUBKEY_LEN);
  2179. tt_int_op(0, OP_EQ, ed25519_sign(&sig1, (const uint8_t*)"ABC", 3, &kp));
  2180. tt_int_op(0, OP_EQ, ed25519_signature_to_base64(buf, &sig1));
  2181. tt_int_op(0, OP_EQ, ed25519_signature_from_base64(&sig2, buf));
  2182. tt_mem_op(sig1.sig, OP_EQ, sig2.sig, ED25519_SIG_LEN);
  2183. /* Test known value. */
  2184. tt_int_op(0, OP_EQ, ed25519_public_from_base64(&pk,
  2185. "lVIuIctLjbGZGU5wKMNXxXlSE3cW4kaqkqm04u6pxvM"));
  2186. test_memeq_hex(pk.pubkey,
  2187. "95522e21cb4b8db199194e7028c357c57952137716e246aa92a9b4e2eea9c6f3");
  2188. done:
  2189. tor_free(mem_op_hex_tmp);
  2190. }
  2191. static void
  2192. test_crypto_ed25519_convert(void *arg)
  2193. {
  2194. const uint8_t msg[] =
  2195. "The eyes are not here / There are no eyes here.";
  2196. const int N = 30;
  2197. int i;
  2198. (void)arg;
  2199. for (i = 0; i < N; ++i) {
  2200. curve25519_keypair_t curve25519_keypair;
  2201. ed25519_keypair_t ed25519_keypair;
  2202. ed25519_public_key_t ed25519_pubkey;
  2203. int bit=0;
  2204. ed25519_signature_t sig;
  2205. tt_int_op(0,OP_EQ,curve25519_keypair_generate(&curve25519_keypair, i&1));
  2206. tt_int_op(0,OP_EQ,ed25519_keypair_from_curve25519_keypair(
  2207. &ed25519_keypair, &bit, &curve25519_keypair));
  2208. tt_int_op(0,OP_EQ,ed25519_public_key_from_curve25519_public_key(
  2209. &ed25519_pubkey, &curve25519_keypair.pubkey, bit));
  2210. tt_mem_op(ed25519_pubkey.pubkey, OP_EQ, ed25519_keypair.pubkey.pubkey, 32);
  2211. tt_int_op(0,OP_EQ,ed25519_sign(&sig, msg, sizeof(msg), &ed25519_keypair));
  2212. tt_int_op(0,OP_EQ,ed25519_checksig(&sig, msg, sizeof(msg),
  2213. &ed25519_pubkey));
  2214. tt_int_op(-1,OP_EQ,ed25519_checksig(&sig, msg, sizeof(msg)-1,
  2215. &ed25519_pubkey));
  2216. sig.sig[0] ^= 15;
  2217. tt_int_op(-1,OP_EQ,ed25519_checksig(&sig, msg, sizeof(msg),
  2218. &ed25519_pubkey));
  2219. }
  2220. done:
  2221. ;
  2222. }
  2223. static void
  2224. test_crypto_ed25519_blinding(void *arg)
  2225. {
  2226. const uint8_t msg[] =
  2227. "Eyes I dare not meet in dreams / In death's dream kingdom";
  2228. const int N = 30;
  2229. int i;
  2230. (void)arg;
  2231. for (i = 0; i < N; ++i) {
  2232. uint8_t blinding[32];
  2233. ed25519_keypair_t ed25519_keypair;
  2234. ed25519_keypair_t ed25519_keypair_blinded;
  2235. ed25519_public_key_t ed25519_pubkey_blinded;
  2236. ed25519_signature_t sig;
  2237. crypto_rand((char*) blinding, sizeof(blinding));
  2238. tt_int_op(0,OP_EQ,ed25519_keypair_generate(&ed25519_keypair, 0));
  2239. tt_int_op(0,OP_EQ,ed25519_keypair_blind(&ed25519_keypair_blinded,
  2240. &ed25519_keypair, blinding));
  2241. tt_int_op(0,OP_EQ,ed25519_public_blind(&ed25519_pubkey_blinded,
  2242. &ed25519_keypair.pubkey, blinding));
  2243. tt_mem_op(ed25519_pubkey_blinded.pubkey, OP_EQ,
  2244. ed25519_keypair_blinded.pubkey.pubkey, 32);
  2245. tt_int_op(0,OP_EQ,ed25519_sign(&sig, msg, sizeof(msg),
  2246. &ed25519_keypair_blinded));
  2247. tt_int_op(0,OP_EQ,ed25519_checksig(&sig, msg, sizeof(msg),
  2248. &ed25519_pubkey_blinded));
  2249. tt_int_op(-1,OP_EQ,ed25519_checksig(&sig, msg, sizeof(msg)-1,
  2250. &ed25519_pubkey_blinded));
  2251. sig.sig[0] ^= 15;
  2252. tt_int_op(-1,OP_EQ,ed25519_checksig(&sig, msg, sizeof(msg),
  2253. &ed25519_pubkey_blinded));
  2254. }
  2255. done:
  2256. ;
  2257. }
  2258. /** Test that our blinding functions will fail if we pass them bad pubkeys */
  2259. static void
  2260. test_crypto_ed25519_blinding_fail(void *arg)
  2261. {
  2262. int retval;
  2263. uint8_t param[32] = {2};
  2264. ed25519_public_key_t pub;
  2265. ed25519_public_key_t pub_blinded;
  2266. (void)arg;
  2267. /* This point is not on the curve: the blind routines should fail */
  2268. const char badkey[] =
  2269. "e19c65de75c68cf3b7643ea732ba9eb1a3d20d6d57ba223c2ece1df66feb5af0";
  2270. retval = base16_decode((char*)pub.pubkey, sizeof(pub.pubkey),
  2271. badkey, strlen(badkey));
  2272. tt_int_op(retval, OP_EQ, sizeof(pub.pubkey));
  2273. retval = ed25519_public_blind(&pub_blinded, &pub, param);
  2274. tt_int_op(retval, OP_EQ, -1);
  2275. /* This point is legit: blind routines should be happy */
  2276. const char goodkey[] =
  2277. "4ba2e44760dff4c559ef3c38768c1c14a8a54740c782c8d70803e9d6e3ad8794";
  2278. retval = base16_decode((char*)pub.pubkey, sizeof(pub.pubkey),
  2279. goodkey, strlen(goodkey));
  2280. tt_int_op(retval, OP_EQ, sizeof(pub.pubkey));
  2281. retval = ed25519_public_blind(&pub_blinded, &pub, param);
  2282. tt_int_op(retval, OP_EQ, 0);
  2283. done:
  2284. ;
  2285. }
  2286. static void
  2287. test_crypto_ed25519_testvectors(void *arg)
  2288. {
  2289. unsigned i;
  2290. char *mem_op_hex_tmp = NULL;
  2291. (void)arg;
  2292. for (i = 0; i < ARRAY_LENGTH(ED25519_SECRET_KEYS); ++i) {
  2293. uint8_t sk[32];
  2294. ed25519_secret_key_t esk;
  2295. ed25519_public_key_t pk, blind_pk, pkfromcurve;
  2296. ed25519_keypair_t keypair, blind_keypair;
  2297. curve25519_keypair_t curvekp;
  2298. uint8_t blinding_param[32];
  2299. ed25519_signature_t sig;
  2300. int sign;
  2301. memset(&curvekp, 0xd0, sizeof(curvekp));
  2302. #define DECODE(p,s) base16_decode((char*)(p),sizeof(p),(s),strlen(s))
  2303. #define EQ(a,h) test_memeq_hex((const char*)(a), (h))
  2304. tt_int_op(sizeof(sk), OP_EQ, DECODE(sk, ED25519_SECRET_KEYS[i]));
  2305. tt_int_op(sizeof(blinding_param), OP_EQ, DECODE(blinding_param,
  2306. ED25519_BLINDING_PARAMS[i]));
  2307. tt_int_op(0, OP_EQ, ed25519_secret_key_from_seed(&esk, sk));
  2308. EQ(esk.seckey, ED25519_EXPANDED_SECRET_KEYS[i]);
  2309. tt_int_op(0, OP_EQ, ed25519_public_key_generate(&pk, &esk));
  2310. EQ(pk.pubkey, ED25519_PUBLIC_KEYS[i]);
  2311. memcpy(&curvekp.seckey.secret_key, esk.seckey, 32);
  2312. curve25519_public_key_generate(&curvekp.pubkey, &curvekp.seckey);
  2313. tt_int_op(0, OP_EQ,
  2314. ed25519_keypair_from_curve25519_keypair(&keypair, &sign, &curvekp));
  2315. tt_int_op(0, OP_EQ, ed25519_public_key_from_curve25519_public_key(
  2316. &pkfromcurve, &curvekp.pubkey, sign));
  2317. tt_mem_op(keypair.pubkey.pubkey, OP_EQ, pkfromcurve.pubkey, 32);
  2318. EQ(curvekp.pubkey.public_key, ED25519_CURVE25519_PUBLIC_KEYS[i]);
  2319. /* Self-signing */
  2320. memcpy(&keypair.seckey, &esk, sizeof(esk));
  2321. memcpy(&keypair.pubkey, &pk, sizeof(pk));
  2322. tt_int_op(0, OP_EQ, ed25519_sign(&sig, pk.pubkey, 32, &keypair));
  2323. EQ(sig.sig, ED25519_SELF_SIGNATURES[i]);
  2324. /* Blinding */
  2325. tt_int_op(0, OP_EQ,
  2326. ed25519_keypair_blind(&blind_keypair, &keypair, blinding_param));
  2327. tt_int_op(0, OP_EQ,
  2328. ed25519_public_blind(&blind_pk, &pk, blinding_param));
  2329. EQ(blind_keypair.seckey.seckey, ED25519_BLINDED_SECRET_KEYS[i]);
  2330. EQ(blind_pk.pubkey, ED25519_BLINDED_PUBLIC_KEYS[i]);
  2331. tt_mem_op(blind_pk.pubkey, OP_EQ, blind_keypair.pubkey.pubkey, 32);
  2332. #undef DECODE
  2333. #undef EQ
  2334. }
  2335. done:
  2336. tor_free(mem_op_hex_tmp);
  2337. }
  2338. static void
  2339. test_crypto_ed25519_storage(void *arg)
  2340. {
  2341. (void)arg;
  2342. ed25519_keypair_t *keypair = NULL;
  2343. ed25519_public_key_t pub;
  2344. ed25519_secret_key_t sec;
  2345. char *fname_1 = tor_strdup(get_fname("ed_seckey_1"));
  2346. char *fname_2 = tor_strdup(get_fname("ed_pubkey_2"));
  2347. char *contents = NULL;
  2348. char *tag = NULL;
  2349. keypair = tor_malloc_zero(sizeof(ed25519_keypair_t));
  2350. tt_int_op(0,OP_EQ,ed25519_keypair_generate(keypair, 0));
  2351. tt_int_op(0,OP_EQ,
  2352. ed25519_seckey_write_to_file(&keypair->seckey, fname_1, "foo"));
  2353. tt_int_op(0,OP_EQ,
  2354. ed25519_pubkey_write_to_file(&keypair->pubkey, fname_2, "bar"));
  2355. tt_int_op(-1, OP_EQ, ed25519_pubkey_read_from_file(&pub, &tag, fname_1));
  2356. tt_ptr_op(tag, OP_EQ, NULL);
  2357. tt_int_op(-1, OP_EQ, ed25519_seckey_read_from_file(&sec, &tag, fname_2));
  2358. tt_ptr_op(tag, OP_EQ, NULL);
  2359. tt_int_op(0, OP_EQ, ed25519_pubkey_read_from_file(&pub, &tag, fname_2));
  2360. tt_str_op(tag, OP_EQ, "bar");
  2361. tor_free(tag);
  2362. tt_int_op(0, OP_EQ, ed25519_seckey_read_from_file(&sec, &tag, fname_1));
  2363. tt_str_op(tag, OP_EQ, "foo");
  2364. tor_free(tag);
  2365. /* whitebox test: truncated keys. */
  2366. tt_int_op(0, OP_EQ, do_truncate(fname_1, 40));
  2367. tt_int_op(0, OP_EQ, do_truncate(fname_2, 40));
  2368. tt_int_op(-1, OP_EQ, ed25519_pubkey_read_from_file(&pub, &tag, fname_2));
  2369. tt_ptr_op(tag, OP_EQ, NULL);
  2370. tor_free(tag);
  2371. tt_int_op(-1, OP_EQ, ed25519_seckey_read_from_file(&sec, &tag, fname_1));
  2372. tt_ptr_op(tag, OP_EQ, NULL);
  2373. done:
  2374. tor_free(fname_1);
  2375. tor_free(fname_2);
  2376. tor_free(contents);
  2377. tor_free(tag);
  2378. ed25519_keypair_free(keypair);
  2379. }
  2380. static void
  2381. test_crypto_siphash(void *arg)
  2382. {
  2383. /* From the reference implementation, taking
  2384. k = 00 01 02 ... 0f
  2385. and in = 00; 00 01; 00 01 02; ...
  2386. */
  2387. const uint8_t VECTORS[64][8] =
  2388. {
  2389. { 0x31, 0x0e, 0x0e, 0xdd, 0x47, 0xdb, 0x6f, 0x72, },
  2390. { 0xfd, 0x67, 0xdc, 0x93, 0xc5, 0x39, 0xf8, 0x74, },
  2391. { 0x5a, 0x4f, 0xa9, 0xd9, 0x09, 0x80, 0x6c, 0x0d, },
  2392. { 0x2d, 0x7e, 0xfb, 0xd7, 0x96, 0x66, 0x67, 0x85, },
  2393. { 0xb7, 0x87, 0x71, 0x27, 0xe0, 0x94, 0x27, 0xcf, },
  2394. { 0x8d, 0xa6, 0x99, 0xcd, 0x64, 0x55, 0x76, 0x18, },
  2395. { 0xce, 0xe3, 0xfe, 0x58, 0x6e, 0x46, 0xc9, 0xcb, },
  2396. { 0x37, 0xd1, 0x01, 0x8b, 0xf5, 0x00, 0x02, 0xab, },
  2397. { 0x62, 0x24, 0x93, 0x9a, 0x79, 0xf5, 0xf5, 0x93, },
  2398. { 0xb0, 0xe4, 0xa9, 0x0b, 0xdf, 0x82, 0x00, 0x9e, },
  2399. { 0xf3, 0xb9, 0xdd, 0x94, 0xc5, 0xbb, 0x5d, 0x7a, },
  2400. { 0xa7, 0xad, 0x6b, 0x22, 0x46, 0x2f, 0xb3, 0xf4, },
  2401. { 0xfb, 0xe5, 0x0e, 0x86, 0xbc, 0x8f, 0x1e, 0x75, },
  2402. { 0x90, 0x3d, 0x84, 0xc0, 0x27, 0x56, 0xea, 0x14, },
  2403. { 0xee, 0xf2, 0x7a, 0x8e, 0x90, 0xca, 0x23, 0xf7, },
  2404. { 0xe5, 0x45, 0xbe, 0x49, 0x61, 0xca, 0x29, 0xa1, },
  2405. { 0xdb, 0x9b, 0xc2, 0x57, 0x7f, 0xcc, 0x2a, 0x3f, },
  2406. { 0x94, 0x47, 0xbe, 0x2c, 0xf5, 0xe9, 0x9a, 0x69, },
  2407. { 0x9c, 0xd3, 0x8d, 0x96, 0xf0, 0xb3, 0xc1, 0x4b, },
  2408. { 0xbd, 0x61, 0x79, 0xa7, 0x1d, 0xc9, 0x6d, 0xbb, },
  2409. { 0x98, 0xee, 0xa2, 0x1a, 0xf2, 0x5c, 0xd6, 0xbe, },
  2410. { 0xc7, 0x67, 0x3b, 0x2e, 0xb0, 0xcb, 0xf2, 0xd0, },
  2411. { 0x88, 0x3e, 0xa3, 0xe3, 0x95, 0x67, 0x53, 0x93, },
  2412. { 0xc8, 0xce, 0x5c, 0xcd, 0x8c, 0x03, 0x0c, 0xa8, },
  2413. { 0x94, 0xaf, 0x49, 0xf6, 0xc6, 0x50, 0xad, 0xb8, },
  2414. { 0xea, 0xb8, 0x85, 0x8a, 0xde, 0x92, 0xe1, 0xbc, },
  2415. { 0xf3, 0x15, 0xbb, 0x5b, 0xb8, 0x35, 0xd8, 0x17, },
  2416. { 0xad, 0xcf, 0x6b, 0x07, 0x63, 0x61, 0x2e, 0x2f, },
  2417. { 0xa5, 0xc9, 0x1d, 0xa7, 0xac, 0xaa, 0x4d, 0xde, },
  2418. { 0x71, 0x65, 0x95, 0x87, 0x66, 0x50, 0xa2, 0xa6, },
  2419. { 0x28, 0xef, 0x49, 0x5c, 0x53, 0xa3, 0x87, 0xad, },
  2420. { 0x42, 0xc3, 0x41, 0xd8, 0xfa, 0x92, 0xd8, 0x32, },
  2421. { 0xce, 0x7c, 0xf2, 0x72, 0x2f, 0x51, 0x27, 0x71, },
  2422. { 0xe3, 0x78, 0x59, 0xf9, 0x46, 0x23, 0xf3, 0xa7, },
  2423. { 0x38, 0x12, 0x05, 0xbb, 0x1a, 0xb0, 0xe0, 0x12, },
  2424. { 0xae, 0x97, 0xa1, 0x0f, 0xd4, 0x34, 0xe0, 0x15, },
  2425. { 0xb4, 0xa3, 0x15, 0x08, 0xbe, 0xff, 0x4d, 0x31, },
  2426. { 0x81, 0x39, 0x62, 0x29, 0xf0, 0x90, 0x79, 0x02, },
  2427. { 0x4d, 0x0c, 0xf4, 0x9e, 0xe5, 0xd4, 0xdc, 0xca, },
  2428. { 0x5c, 0x73, 0x33, 0x6a, 0x76, 0xd8, 0xbf, 0x9a, },
  2429. { 0xd0, 0xa7, 0x04, 0x53, 0x6b, 0xa9, 0x3e, 0x0e, },
  2430. { 0x92, 0x59, 0x58, 0xfc, 0xd6, 0x42, 0x0c, 0xad, },
  2431. { 0xa9, 0x15, 0xc2, 0x9b, 0xc8, 0x06, 0x73, 0x18, },
  2432. { 0x95, 0x2b, 0x79, 0xf3, 0xbc, 0x0a, 0xa6, 0xd4, },
  2433. { 0xf2, 0x1d, 0xf2, 0xe4, 0x1d, 0x45, 0x35, 0xf9, },
  2434. { 0x87, 0x57, 0x75, 0x19, 0x04, 0x8f, 0x53, 0xa9, },
  2435. { 0x10, 0xa5, 0x6c, 0xf5, 0xdf, 0xcd, 0x9a, 0xdb, },
  2436. { 0xeb, 0x75, 0x09, 0x5c, 0xcd, 0x98, 0x6c, 0xd0, },
  2437. { 0x51, 0xa9, 0xcb, 0x9e, 0xcb, 0xa3, 0x12, 0xe6, },
  2438. { 0x96, 0xaf, 0xad, 0xfc, 0x2c, 0xe6, 0x66, 0xc7, },
  2439. { 0x72, 0xfe, 0x52, 0x97, 0x5a, 0x43, 0x64, 0xee, },
  2440. { 0x5a, 0x16, 0x45, 0xb2, 0x76, 0xd5, 0x92, 0xa1, },
  2441. { 0xb2, 0x74, 0xcb, 0x8e, 0xbf, 0x87, 0x87, 0x0a, },
  2442. { 0x6f, 0x9b, 0xb4, 0x20, 0x3d, 0xe7, 0xb3, 0x81, },
  2443. { 0xea, 0xec, 0xb2, 0xa3, 0x0b, 0x22, 0xa8, 0x7f, },
  2444. { 0x99, 0x24, 0xa4, 0x3c, 0xc1, 0x31, 0x57, 0x24, },
  2445. { 0xbd, 0x83, 0x8d, 0x3a, 0xaf, 0xbf, 0x8d, 0xb7, },
  2446. { 0x0b, 0x1a, 0x2a, 0x32, 0x65, 0xd5, 0x1a, 0xea, },
  2447. { 0x13, 0x50, 0x79, 0xa3, 0x23, 0x1c, 0xe6, 0x60, },
  2448. { 0x93, 0x2b, 0x28, 0x46, 0xe4, 0xd7, 0x06, 0x66, },
  2449. { 0xe1, 0x91, 0x5f, 0x5c, 0xb1, 0xec, 0xa4, 0x6c, },
  2450. { 0xf3, 0x25, 0x96, 0x5c, 0xa1, 0x6d, 0x62, 0x9f, },
  2451. { 0x57, 0x5f, 0xf2, 0x8e, 0x60, 0x38, 0x1b, 0xe5, },
  2452. { 0x72, 0x45, 0x06, 0xeb, 0x4c, 0x32, 0x8a, 0x95, }
  2453. };
  2454. const struct sipkey K = { U64_LITERAL(0x0706050403020100),
  2455. U64_LITERAL(0x0f0e0d0c0b0a0908) };
  2456. uint8_t input[64];
  2457. int i, j;
  2458. (void)arg;
  2459. for (i = 0; i < 64; ++i)
  2460. input[i] = i;
  2461. for (i = 0; i < 64; ++i) {
  2462. uint64_t r = siphash24(input, i, &K);
  2463. for (j = 0; j < 8; ++j) {
  2464. tt_int_op( (r >> (j*8)) & 0xff, OP_EQ, VECTORS[i][j]);
  2465. }
  2466. }
  2467. done:
  2468. ;
  2469. }
  2470. /* We want the likelihood that the random buffer exhibits any regular pattern
  2471. * to be far less than the memory bit error rate in the int return value.
  2472. * Using 2048 bits provides a failure rate of 1/(3 * 10^616), and we call
  2473. * 3 functions, leading to an overall error rate of 1/10^616.
  2474. * This is comparable with the 1/10^603 failure rate of test_crypto_rng_range.
  2475. */
  2476. #define FAILURE_MODE_BUFFER_SIZE (2048/8)
  2477. /** Check crypto_rand for a failure mode where it does nothing to the buffer,
  2478. * or it sets the buffer to all zeroes. Return 0 when the check passes,
  2479. * or -1 when it fails. */
  2480. static int
  2481. crypto_rand_check_failure_mode_zero(void)
  2482. {
  2483. char buf[FAILURE_MODE_BUFFER_SIZE];
  2484. memset(buf, 0, FAILURE_MODE_BUFFER_SIZE);
  2485. crypto_rand(buf, FAILURE_MODE_BUFFER_SIZE);
  2486. for (size_t i = 0; i < FAILURE_MODE_BUFFER_SIZE; i++) {
  2487. if (buf[i] != 0) {
  2488. return 0;
  2489. }
  2490. }
  2491. return -1;
  2492. }
  2493. /** Check crypto_rand for a failure mode where every int64_t in the buffer is
  2494. * the same. Return 0 when the check passes, or -1 when it fails. */
  2495. static int
  2496. crypto_rand_check_failure_mode_identical(void)
  2497. {
  2498. /* just in case the buffer size isn't a multiple of sizeof(int64_t) */
  2499. #define FAILURE_MODE_BUFFER_SIZE_I64 \
  2500. (FAILURE_MODE_BUFFER_SIZE/SIZEOF_INT64_T)
  2501. #define FAILURE_MODE_BUFFER_SIZE_I64_BYTES \
  2502. (FAILURE_MODE_BUFFER_SIZE_I64*SIZEOF_INT64_T)
  2503. #if FAILURE_MODE_BUFFER_SIZE_I64 < 2
  2504. #error FAILURE_MODE_BUFFER_SIZE needs to be at least 2*SIZEOF_INT64_T
  2505. #endif
  2506. int64_t buf[FAILURE_MODE_BUFFER_SIZE_I64];
  2507. memset(buf, 0, FAILURE_MODE_BUFFER_SIZE_I64_BYTES);
  2508. crypto_rand((char *)buf, FAILURE_MODE_BUFFER_SIZE_I64_BYTES);
  2509. for (size_t i = 1; i < FAILURE_MODE_BUFFER_SIZE_I64; i++) {
  2510. if (buf[i] != buf[i-1]) {
  2511. return 0;
  2512. }
  2513. }
  2514. return -1;
  2515. }
  2516. /** Check crypto_rand for a failure mode where it increments the "random"
  2517. * value by 1 for every byte in the buffer. (This is OpenSSL's PREDICT mode.)
  2518. * Return 0 when the check passes, or -1 when it fails. */
  2519. static int
  2520. crypto_rand_check_failure_mode_predict(void)
  2521. {
  2522. unsigned char buf[FAILURE_MODE_BUFFER_SIZE];
  2523. memset(buf, 0, FAILURE_MODE_BUFFER_SIZE);
  2524. crypto_rand((char *)buf, FAILURE_MODE_BUFFER_SIZE);
  2525. for (size_t i = 1; i < FAILURE_MODE_BUFFER_SIZE; i++) {
  2526. /* check if the last byte was incremented by 1, including integer
  2527. * wrapping */
  2528. if (buf[i] - buf[i-1] != 1 && buf[i-1] - buf[i] != 255) {
  2529. return 0;
  2530. }
  2531. }
  2532. return -1;
  2533. }
  2534. #undef FAILURE_MODE_BUFFER_SIZE
  2535. /** Test that our ed25519 validation function rejects evil public keys and
  2536. * accepts good ones. */
  2537. static void
  2538. test_crypto_ed25519_validation(void *arg)
  2539. {
  2540. (void) arg;
  2541. int retval;
  2542. ed25519_public_key_t pub1;
  2543. /* See https://lists.torproject.org/pipermail/tor-dev/2017-April/012230.html
  2544. for a list of points with torsion components in ed25519. */
  2545. { /* Point with torsion component (order 8l) */
  2546. const char badkey[] =
  2547. "300ef2e64e588e1df55b48e4da0416ffb64cc85d5b00af6463d5cc6c2b1c185e";
  2548. retval = base16_decode((char*)pub1.pubkey, sizeof(pub1.pubkey),
  2549. badkey, strlen(badkey));
  2550. tt_int_op(retval, OP_EQ, sizeof(pub1.pubkey));
  2551. tt_int_op(ed25519_validate_pubkey(&pub1), OP_EQ, -1);
  2552. }
  2553. { /* Point with torsion component (order 4l) */
  2554. const char badkey[] =
  2555. "f43e3a046db8749164c6e69b193f1e942c7452e7d888736f40b98093d814d5e7";
  2556. retval = base16_decode((char*)pub1.pubkey, sizeof(pub1.pubkey),
  2557. badkey, strlen(badkey));
  2558. tt_int_op(retval, OP_EQ, sizeof(pub1.pubkey));
  2559. tt_int_op(ed25519_validate_pubkey(&pub1), OP_EQ, -1);
  2560. }
  2561. { /* Point with torsion component (order 2l) */
  2562. const char badkey[] =
  2563. "c9fff3af0471c28e33e98c2043e44f779d0427b1e37c521a6bddc011ed1869af";
  2564. retval = base16_decode((char*)pub1.pubkey, sizeof(pub1.pubkey),
  2565. badkey, strlen(badkey));
  2566. tt_int_op(retval, OP_EQ, sizeof(pub1.pubkey));
  2567. tt_int_op(ed25519_validate_pubkey(&pub1), OP_EQ, -1);
  2568. }
  2569. { /* This point is not even on the curve */
  2570. const char badkey[] =
  2571. "e19c65de75c68cf3b7643ea732ba9eb1a3d20d6d57ba223c2ece1df66feb5af0";
  2572. retval = base16_decode((char*)pub1.pubkey, sizeof(pub1.pubkey),
  2573. badkey, strlen(badkey));
  2574. tt_int_op(retval, OP_EQ, sizeof(pub1.pubkey));
  2575. tt_int_op(ed25519_validate_pubkey(&pub1), OP_EQ, -1);
  2576. }
  2577. { /* This one is a good key */
  2578. const char goodkey[] =
  2579. "4ba2e44760dff4c559ef3c38768c1c14a8a54740c782c8d70803e9d6e3ad8794";
  2580. retval = base16_decode((char*)pub1.pubkey, sizeof(pub1.pubkey),
  2581. goodkey, strlen(goodkey));
  2582. tt_int_op(retval, OP_EQ, sizeof(pub1.pubkey));
  2583. tt_int_op(ed25519_validate_pubkey(&pub1), OP_EQ, 0);
  2584. }
  2585. done: ;
  2586. }
  2587. static void
  2588. test_crypto_failure_modes(void *arg)
  2589. {
  2590. int rv = 0;
  2591. (void)arg;
  2592. rv = crypto_early_init();
  2593. tt_int_op(rv, OP_EQ, 0);
  2594. /* Check random works */
  2595. rv = crypto_rand_check_failure_mode_zero();
  2596. tt_int_op(rv, OP_EQ, 0);
  2597. rv = crypto_rand_check_failure_mode_identical();
  2598. tt_int_op(rv, OP_EQ, 0);
  2599. rv = crypto_rand_check_failure_mode_predict();
  2600. tt_int_op(rv, OP_EQ, 0);
  2601. done:
  2602. ;
  2603. }
  2604. #define CRYPTO_LEGACY(name) \
  2605. { #name, test_crypto_ ## name , 0, NULL, NULL }
  2606. #define ED25519_TEST_ONE(name, fl, which) \
  2607. { #name "/ed25519_" which, test_crypto_ed25519_ ## name, (fl), \
  2608. &ed25519_test_setup, (void*)which }
  2609. #define ED25519_TEST(name, fl) \
  2610. ED25519_TEST_ONE(name, (fl), "donna"), \
  2611. ED25519_TEST_ONE(name, (fl), "ref10")
  2612. struct testcase_t crypto_tests[] = {
  2613. CRYPTO_LEGACY(formats),
  2614. CRYPTO_LEGACY(rng),
  2615. { "rng_range", test_crypto_rng_range, 0, NULL, NULL },
  2616. { "rng_strongest", test_crypto_rng_strongest, TT_FORK, NULL, NULL },
  2617. { "rng_strongest_nosyscall", test_crypto_rng_strongest, TT_FORK,
  2618. &passthrough_setup, (void*)"nosyscall" },
  2619. { "rng_strongest_nofallback", test_crypto_rng_strongest, TT_FORK,
  2620. &passthrough_setup, (void*)"nofallback" },
  2621. { "rng_strongest_broken", test_crypto_rng_strongest, TT_FORK,
  2622. &passthrough_setup, (void*)"broken" },
  2623. { "openssl_version", test_crypto_openssl_version, TT_FORK, NULL, NULL },
  2624. { "aes_AES", test_crypto_aes128, TT_FORK, &passthrough_setup, (void*)"aes" },
  2625. { "aes_EVP", test_crypto_aes128, TT_FORK, &passthrough_setup, (void*)"evp" },
  2626. { "aes128_ctr_testvec", test_crypto_aes_ctr_testvec, 0,
  2627. &passthrough_setup, (void*)"128" },
  2628. { "aes192_ctr_testvec", test_crypto_aes_ctr_testvec, 0,
  2629. &passthrough_setup, (void*)"192" },
  2630. { "aes256_ctr_testvec", test_crypto_aes_ctr_testvec, 0,
  2631. &passthrough_setup, (void*)"256" },
  2632. CRYPTO_LEGACY(sha),
  2633. CRYPTO_LEGACY(pk),
  2634. { "pk_fingerprints", test_crypto_pk_fingerprints, TT_FORK, NULL, NULL },
  2635. { "pk_base64", test_crypto_pk_base64, TT_FORK, NULL, NULL },
  2636. CRYPTO_LEGACY(digests),
  2637. { "digest_names", test_crypto_digest_names, 0, NULL, NULL },
  2638. { "sha3", test_crypto_sha3, TT_FORK, NULL, NULL},
  2639. { "sha3_xof", test_crypto_sha3_xof, TT_FORK, NULL, NULL},
  2640. { "mac_sha3", test_crypto_mac_sha3, TT_FORK, NULL, NULL},
  2641. CRYPTO_LEGACY(dh),
  2642. { "aes_iv_AES", test_crypto_aes_iv, TT_FORK, &passthrough_setup,
  2643. (void*)"aes" },
  2644. { "aes_iv_EVP", test_crypto_aes_iv, TT_FORK, &passthrough_setup,
  2645. (void*)"evp" },
  2646. CRYPTO_LEGACY(base32_decode),
  2647. { "kdf_TAP", test_crypto_kdf_TAP, 0, NULL, NULL },
  2648. { "hkdf_sha256", test_crypto_hkdf_sha256, 0, NULL, NULL },
  2649. { "hkdf_sha256_testvecs", test_crypto_hkdf_sha256_testvecs, 0, NULL, NULL },
  2650. { "curve25519_impl", test_crypto_curve25519_impl, 0, NULL, NULL },
  2651. { "curve25519_impl_hibit", test_crypto_curve25519_impl, 0, NULL, (void*)"y"},
  2652. { "curve25516_testvec", test_crypto_curve25519_testvec, 0, NULL, NULL },
  2653. { "curve25519_basepoint",
  2654. test_crypto_curve25519_basepoint, TT_FORK, NULL, NULL },
  2655. { "curve25519_wrappers", test_crypto_curve25519_wrappers, 0, NULL, NULL },
  2656. { "curve25519_encode", test_crypto_curve25519_encode, 0, NULL, NULL },
  2657. { "curve25519_persist", test_crypto_curve25519_persist, 0, NULL, NULL },
  2658. ED25519_TEST(simple, 0),
  2659. ED25519_TEST(test_vectors, 0),
  2660. ED25519_TEST(encode, 0),
  2661. ED25519_TEST(convert, 0),
  2662. ED25519_TEST(blinding, 0),
  2663. ED25519_TEST(blinding_fail, 0),
  2664. ED25519_TEST(testvectors, 0),
  2665. ED25519_TEST(validation, 0),
  2666. { "ed25519_storage", test_crypto_ed25519_storage, 0, NULL, NULL },
  2667. { "siphash", test_crypto_siphash, 0, NULL, NULL },
  2668. { "failure_modes", test_crypto_failure_modes, TT_FORK, NULL, NULL },
  2669. END_OF_TESTCASES
  2670. };