tls13encryptiontest.c 14 KB

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  1. /*
  2. * Copyright 2016-2023 The OpenSSL Project Authors. All Rights Reserved.
  3. *
  4. * Licensed under the Apache License 2.0 (the "License"). You may not use
  5. * this file except in compliance with the License. You can obtain a copy
  6. * in the file LICENSE in the source distribution or at
  7. * https://www.openssl.org/source/license.html
  8. */
  9. #include <openssl/ssl.h>
  10. #include <openssl/evp.h>
  11. #include "../ssl/ssl_local.h"
  12. #include "../ssl/record/record_local.h"
  13. #include "internal/recordmethod.h"
  14. #include "../ssl/record/methods/recmethod_local.h"
  15. #include "internal/nelem.h"
  16. #include "testutil.h"
  17. /*
  18. * Based on the test vectors provided in:
  19. * https://tools.ietf.org/html/draft-ietf-tls-tls13-vectors-06
  20. */
  21. typedef struct {
  22. /*
  23. * We split these into 3 chunks in order to work around the 509 character
  24. * limit that the standard specifies for string literals
  25. */
  26. const char *plaintext[3];
  27. const char *ciphertext[3];
  28. const char *key;
  29. const char *iv;
  30. const char *seq;
  31. } RECORD_DATA;
  32. /*
  33. * Note 1: The plaintext values given here have an additional "16" or "17" byte
  34. * added to the end when compared to the official vectors. The official vectors
  35. * do not include the inner content type, but we require it.
  36. *
  37. * Note 2: These are the vectors for the "Simple 1-RTT Handshake"
  38. */
  39. static RECORD_DATA refdata[] = {
  40. {
  41. /*
  42. * Server: EncryptedExtensions, Certificate, CertificateVerify and
  43. * Finished
  44. */
  45. {
  46. "080000240022000a00140012001d00170018001901000101010201030104001c"
  47. "00024001000000000b0001b9000001b50001b0308201ac30820115a003020102"
  48. "020102300d06092a864886f70d01010b0500300e310c300a0603550403130372"
  49. "7361301e170d3136303733303031323335395a170d3236303733303031323335"
  50. "395a300e310c300a0603550403130372736130819f300d06092a864886f70d01"
  51. "0101050003818d0030818902818100b4bb498f8279303d980836399b36c6988c"
  52. "0c68de55e1bdb826d3901a2461eafd2de49a91d015abbc9a95137ace6c1af19e",
  53. "aa6af98c7ced43120998e187a80ee0ccb0524b1b018c3e0b63264d449a6d38e2"
  54. "2a5fda430846748030530ef0461c8ca9d9efbfae8ea6d1d03e2bd193eff0ab9a"
  55. "8002c47428a6d35a8d88d79f7f1e3f0203010001a31a301830090603551d1304"
  56. "023000300b0603551d0f0404030205a0300d06092a864886f70d01010b050003"
  57. "81810085aad2a0e5b9276b908c65f73a7267170618a54c5f8a7b337d2df7a594"
  58. "365417f2eae8f8a58c8f8172f9319cf36b7fd6c55b80f21a03015156726096fd"
  59. "335e5e67f2dbf102702e608ccae6bec1fc63a42a99be5c3eb7107c3c54e9b9eb",
  60. "2bd5203b1c3b84e0a8b2f759409ba3eac9d91d402dcc0cc8f8961229ac9187b4"
  61. "2b4de100000f00008408040080754040d0ddab8cf0e2da2bc4995b868ad745c8"
  62. "e1564e33cde17880a42392cc624aeef6b67bb3f0ae71d9d54a2309731d87dc59"
  63. "f642d733be2eb27484ad8a8c8eb3516a7ac57f2625e2b5c0888a8541f4e734f7"
  64. "3d054761df1dd02f0e3e9a33cfa10b6e3eb4ebf7ac053b01fdabbddfc54133bc"
  65. "d24c8bbdceb223b2aa03452a2914000020ac86acbc9cd25a45b57ad5b64db15d"
  66. "4405cf8c80e314583ebf3283ef9a99310c16"
  67. },
  68. {
  69. "f10b26d8fcaf67b5b828f712122216a1cd14187465b77637cbcd78539128bb93"
  70. "246dcca1af56f1eaa271666077455bc54965d85f05f9bd36d6996171eb536aff"
  71. "613eeddc42bad5a2d2227c4606f1215f980e7afaf56bd3b85a51be130003101a"
  72. "758d077b1c891d8e7a22947e5a229851fd42a9dd422608f868272abf92b3d43f"
  73. "b46ac420259346067f66322fd708885680f4b4433c29116f2dfa529e09bba53c"
  74. "7cd920121724809eaddcc84307ef46fc51a0b33d99d39db337fcd761ce0f2b02"
  75. "dc73dedb6fddb77c4f8099bde93d5bee08bcf2131f29a2a37ff07949e8f8bcdd",
  76. "3e8310b8bf8b3444c85aaf0d2aeb2d4f36fd14d5cb51fcebff418b3827136ab9"
  77. "529e9a3d3f35e4c0ae749ea2dbc94982a1281d3e6daab719aa4460889321a008"
  78. "bf10fa06ac0c61cc122cc90d5e22c0030c986ae84a33a0c47df174bcfbd50bf7"
  79. "8ffdf24051ab423db63d5815db2f830040f30521131c98c66f16c362addce2fb"
  80. "a0602cf0a7dddf22e8def7516cdfee95b4056cc9ad38c95352335421b5b1ffba"
  81. "df75e5212fdad7a75f52a2801486a1eec3539580bee0e4b337cda6085ac9eccd"
  82. "1a0f1a46cebfbb5cdfa3251ac28c3bc826148c6d8c1eb6a06f77f6ff632c6a83",
  83. "e283e8f9df7c6dbabf1c6ea40629a85b43ab0c73d34f9d5072832a104eda3f75"
  84. "f5d83da6e14822a18e14099d749eafd823ca2ac7542086501eca206ce7887920"
  85. "008573757ce2f230a890782b99cc682377beee812756d04f9025135fb599d746"
  86. "fefe7316c922ac265ca0d29021375adb63c1509c3e242dfb92b8dee891f7368c"
  87. "4058399b8db9075f2dcc8216194e503b6652d87d2cb41f99adfdcc5be5ec7e1e"
  88. "6326ac22d70bd3ba652827532d669aff005173597f8039c3ea4922d3ec757670"
  89. "222f6ac29b93e90d7ad3f6dd96328e429cfcfd5cca22707fe2d86ad1dcb0be75"
  90. "6e8e"
  91. },
  92. "c66cb1aec519df44c91e10995511ac8b",
  93. "f7f6884c4981716c2d0d29a4",
  94. "0000000000000000"
  95. },
  96. {
  97. /* Client: Finished */
  98. {
  99. "14000020b9027a0204b972b52cdefa58950fa1580d68c9cb124dbe691a7178f2"
  100. "5c554b2316", "", ""
  101. },
  102. {
  103. "9539b4ae2f87fd8e616b295628ea953d9e3858db274970d19813ec136cae7d96"
  104. "e0417775fcabd3d8858fdc60240912d218f5afb21c", "", ""
  105. },
  106. "2679a43e1d76784034ea1797d5ad2649",
  107. "5482405290dd0d2f81c0d942",
  108. "0000000000000000"
  109. },
  110. {
  111. /* Server: NewSessionTicket */
  112. {
  113. "040000c90000001e2fd3992f02000000b2ff099f9676cdff8b0bf8825d000000"
  114. "007905a9d28efeef4a47c6f9b06a0cecdb0070d920b898997c75b79636943ed4"
  115. "2046a96142bd084a04acfa0c490f452d756dea02c0f927259f1f3231ac0d541a"
  116. "769129b740ce38090842b828c27fd729f59737ba98aa7b42e043c5da28f8dca8"
  117. "590b2df410d5134fd6c4cacad8b30370602afa35d265bf4d127976bb36dbda6a"
  118. "626f0270e20eebc73d6fcae2b1a0da122ee9042f76be56ebf41aa469c3d2c9da"
  119. "9197d80008002a00040000040016", "", ""
  120. },
  121. {
  122. "3680c2b2109d25caa26c3b06eea9fdc5cb31613ba702176596da2e886bf6af93"
  123. "507bd68161ad9cb4780653842e1041ecbf0088a65ac4ef438419dd1d95ddd9bd"
  124. "2ad4484e7e167d0e6c008448ae58a0418713b6fc6c51e4bb23a537fb75a74f73"
  125. "de31fe6aa0bc522515f8b25f8955428b5de5ac06762cec22b0aa78c94385ef8e"
  126. "70fa24945b7c1f268510871689bbbbfaf2e7f4a19277024f95f1143ab12a31ec"
  127. "63adb128cb390711fd6d06a498df3e98615d8eb102e23353b480efcca5e8e026"
  128. "7a6d0fe2441f14c8c9664aefb2cfff6ae9e0442728b6a0940c1e824fda06",
  129. "", ""
  130. },
  131. "a688ebb5ac826d6f42d45c0cc44b9b7d",
  132. "c1cad4425a438b5de714830a",
  133. "0000000000000000"
  134. },
  135. {
  136. /* Client: Application Data */
  137. {
  138. "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"
  139. "202122232425262728292a2b2c2d2e2f303117", "", ""
  140. },
  141. {
  142. "8c3497da00ae023e53c01b4324b665404c1b49e78fe2bf4d17f6348ae8340551"
  143. "e363a0cd05f2179c4fef5ad689b5cae0bae94adc63632e571fb79aa91544c639"
  144. "4d28a1", "", ""
  145. },
  146. "88b96ad686c84be55ace18a59cce5c87",
  147. "b99dc58cd5ff5ab082fdad19",
  148. "0000000000000000"
  149. },
  150. {
  151. /* Server: Application Data */
  152. {
  153. "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"
  154. "202122232425262728292a2b2c2d2e2f303117", "", ""
  155. },
  156. {
  157. "f65f49fd2df6cd2347c3d30166e3cfddb6308a5906c076112c6a37ff1dbd406b"
  158. "5813c0abd734883017a6b2833186b13c14da5d75f33d8760789994e27d82043a"
  159. "b88d65", "", ""
  160. },
  161. "a688ebb5ac826d6f42d45c0cc44b9b7d",
  162. "c1cad4425a438b5de714830a",
  163. "0000000000000001"
  164. },
  165. {
  166. /* Client: CloseNotify */
  167. {
  168. "010015", "", ""
  169. },
  170. {
  171. "2c2148163d7938a35f6acf2a6606f8cbd1d9f2", "", ""
  172. },
  173. "88b96ad686c84be55ace18a59cce5c87",
  174. "b99dc58cd5ff5ab082fdad19",
  175. "0000000000000001"
  176. },
  177. {
  178. /* Server: CloseNotify */
  179. {
  180. "010015", "", ""
  181. },
  182. {
  183. "f8141ebdb5eda511e0bce639a56ff9ea825a21", "", ""
  184. },
  185. "a688ebb5ac826d6f42d45c0cc44b9b7d",
  186. "c1cad4425a438b5de714830a",
  187. "0000000000000002"
  188. }
  189. };
  190. /*
  191. * Same thing as OPENSSL_hexstr2buf() but enables us to pass the string in
  192. * 3 chunks
  193. */
  194. static unsigned char *multihexstr2buf(const char *str[3], size_t *len)
  195. {
  196. size_t outer, inner, curr = 0;
  197. unsigned char *outbuf;
  198. size_t totlen = 0;
  199. /* Check lengths of all input strings are even */
  200. for (outer = 0; outer < 3; outer++) {
  201. totlen += strlen(str[outer]);
  202. if ((totlen & 1) != 0)
  203. return NULL;
  204. }
  205. totlen /= 2;
  206. outbuf = OPENSSL_malloc(totlen);
  207. if (outbuf == NULL)
  208. return NULL;
  209. for (outer = 0; outer < 3; outer++) {
  210. for (inner = 0; str[outer][inner] != 0; inner += 2) {
  211. int hi, lo;
  212. hi = OPENSSL_hexchar2int(str[outer][inner]);
  213. lo = OPENSSL_hexchar2int(str[outer][inner + 1]);
  214. if (hi < 0 || lo < 0) {
  215. OPENSSL_free(outbuf);
  216. return NULL;
  217. }
  218. outbuf[curr++] = (hi << 4) | lo;
  219. }
  220. }
  221. *len = totlen;
  222. return outbuf;
  223. }
  224. static int load_record(TLS_RL_RECORD *rec, RECORD_DATA *recd,
  225. unsigned char **key, unsigned char *iv, size_t ivlen,
  226. unsigned char *seq)
  227. {
  228. unsigned char *pt = NULL, *sq = NULL, *ivtmp = NULL;
  229. size_t ptlen;
  230. *key = OPENSSL_hexstr2buf(recd->key, NULL);
  231. ivtmp = OPENSSL_hexstr2buf(recd->iv, NULL);
  232. sq = OPENSSL_hexstr2buf(recd->seq, NULL);
  233. pt = multihexstr2buf(recd->plaintext, &ptlen);
  234. if (*key == NULL || ivtmp == NULL || sq == NULL || pt == NULL)
  235. goto err;
  236. rec->data = rec->input = OPENSSL_malloc(ptlen + EVP_GCM_TLS_TAG_LEN);
  237. if (rec->data == NULL)
  238. goto err;
  239. rec->length = ptlen;
  240. memcpy(rec->data, pt, ptlen);
  241. OPENSSL_free(pt);
  242. memcpy(seq, sq, SEQ_NUM_SIZE);
  243. OPENSSL_free(sq);
  244. memcpy(iv, ivtmp, ivlen);
  245. OPENSSL_free(ivtmp);
  246. return 1;
  247. err:
  248. OPENSSL_free(*key);
  249. *key = NULL;
  250. OPENSSL_free(ivtmp);
  251. OPENSSL_free(sq);
  252. OPENSSL_free(pt);
  253. return 0;
  254. }
  255. static int test_record(TLS_RL_RECORD *rec, RECORD_DATA *recd, int enc)
  256. {
  257. int ret = 0;
  258. unsigned char *refd;
  259. size_t refdatalen = 0;
  260. if (enc)
  261. refd = multihexstr2buf(recd->ciphertext, &refdatalen);
  262. else
  263. refd = multihexstr2buf(recd->plaintext, &refdatalen);
  264. if (!TEST_ptr(refd)) {
  265. TEST_info("Failed to get reference data");
  266. goto err;
  267. }
  268. if (!TEST_mem_eq(rec->data, rec->length, refd, refdatalen))
  269. goto err;
  270. ret = 1;
  271. err:
  272. OPENSSL_free(refd);
  273. return ret;
  274. }
  275. #define TLS13_AES_128_GCM_SHA256_BYTES ((const unsigned char *)"\x13\x01")
  276. static int test_tls13_encryption(void)
  277. {
  278. TLS_RL_RECORD rec;
  279. unsigned char *key = NULL;
  280. const EVP_CIPHER *ciph = EVP_aes_128_gcm();
  281. int ret = 0;
  282. size_t ivlen, ctr;
  283. unsigned char seqbuf[SEQ_NUM_SIZE];
  284. unsigned char iv[EVP_MAX_IV_LENGTH];
  285. OSSL_RECORD_LAYER *rrl = NULL, *wrl = NULL;
  286. /*
  287. * Encrypted TLSv1.3 records always have an outer content type of
  288. * application data, and a record version of TLSv1.2.
  289. */
  290. rec.data = NULL;
  291. rec.type = SSL3_RT_APPLICATION_DATA;
  292. rec.rec_version = TLS1_2_VERSION;
  293. for (ctr = 0; ctr < OSSL_NELEM(refdata); ctr++) {
  294. /* Load the record */
  295. ivlen = EVP_CIPHER_get_iv_length(ciph);
  296. if (!load_record(&rec, &refdata[ctr], &key, iv, ivlen, seqbuf)) {
  297. TEST_error("Failed loading key into EVP_CIPHER_CTX");
  298. goto err;
  299. }
  300. /* Set up the write record layer */
  301. if (!TEST_true(ossl_tls_record_method.new_record_layer(
  302. NULL, NULL, TLS1_3_VERSION, OSSL_RECORD_ROLE_SERVER,
  303. OSSL_RECORD_DIRECTION_WRITE,
  304. OSSL_RECORD_PROTECTION_LEVEL_APPLICATION, 0, NULL, 0,
  305. key, 16, iv, ivlen, NULL, 0, EVP_aes_128_gcm(),
  306. EVP_GCM_TLS_TAG_LEN, 0, NULL, NULL, NULL, NULL, NULL,
  307. NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  308. &wrl)))
  309. goto err;
  310. memcpy(wrl->sequence, seqbuf, sizeof(seqbuf));
  311. /* Encrypt it */
  312. if (!TEST_size_t_eq(wrl->funcs->cipher(wrl, &rec, 1, 1, NULL, 0), 1)) {
  313. TEST_info("Failed to encrypt record %zu", ctr);
  314. goto err;
  315. }
  316. if (!TEST_true(test_record(&rec, &refdata[ctr], 1))) {
  317. TEST_info("Record %zu encryption test failed", ctr);
  318. goto err;
  319. }
  320. /* Set up the read record layer */
  321. if (!TEST_true(ossl_tls_record_method.new_record_layer(
  322. NULL, NULL, TLS1_3_VERSION, OSSL_RECORD_ROLE_SERVER,
  323. OSSL_RECORD_DIRECTION_READ,
  324. OSSL_RECORD_PROTECTION_LEVEL_APPLICATION, 0, NULL, 0,
  325. key, 16, iv, ivlen, NULL, 0, EVP_aes_128_gcm(),
  326. EVP_GCM_TLS_TAG_LEN, 0, NULL, NULL, NULL, NULL, NULL,
  327. NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  328. &rrl)))
  329. goto err;
  330. memcpy(rrl->sequence, seqbuf, sizeof(seqbuf));
  331. /* Decrypt it */
  332. if (!TEST_int_eq(rrl->funcs->cipher(rrl, &rec, 1, 0, NULL, 0), 1)) {
  333. TEST_info("Failed to decrypt record %zu", ctr);
  334. goto err;
  335. }
  336. if (!TEST_true(test_record(&rec, &refdata[ctr], 0))) {
  337. TEST_info("Record %zu decryption test failed", ctr);
  338. goto err;
  339. }
  340. ossl_tls_record_method.free(rrl);
  341. ossl_tls_record_method.free(wrl);
  342. rrl = wrl = NULL;
  343. OPENSSL_free(rec.data);
  344. OPENSSL_free(key);
  345. rec.data = NULL;
  346. key = NULL;
  347. }
  348. TEST_note("PASS: %zu records tested", ctr);
  349. ret = 1;
  350. err:
  351. ossl_tls_record_method.free(rrl);
  352. ossl_tls_record_method.free(wrl);
  353. OPENSSL_free(rec.data);
  354. OPENSSL_free(key);
  355. return ret;
  356. }
  357. int setup_tests(void)
  358. {
  359. ADD_TEST(test_tls13_encryption);
  360. return 1;
  361. }