test/tls13encryptiontest.c

   1 /*
   2  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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
  10 #include <openssl/ssl.h>
  11 #include <openssl/evp.h>
  12
  13 #ifdef __VMS
  14 # pragma names save
  15 # pragma names as_is,shortened
  16 #endif
  17
  18 #include "../ssl/ssl_locl.h"
  19 #include "../ssl/record/record_locl.h"
  20
  21 #ifdef __VMS
  22 # pragma names restore
  23 #endif
  24
  25 #include "testutil.h"
  26
  27 /*
  28  * Based on the test vectors provided in:
  29  * https://www.ietf.org/id/draft-thomson-tls-tls13-vectors-01.txt
  30  */
  31
  32 typedef struct {
  33     /*
  34      * We split these into 3 chunks in order to work around the 509 character
  35      * limit that the standard specifies for string literals
  36      */
  37     const char *plaintext[3];
  38     const char *ciphertext[3];
  39     const char *key;
  40     const char *iv;
  41     const char *seq;
  42 } RECORD_DATA;
  43
  44 static RECORD_DATA refdata[] = {
  45     {
  46         /*
  47          * Server: EncryptedExtensions, Certificate, CertificateVerify and
  48          *         Finished
  49          */
  50         {
  51             "0800001e001c000a00140012001d001700180019010001010102010301040000"
  52             "00000b0001b9000001b50001b0308201ac30820115a003020102020102300d06"
  53             "092a864886f70d01010b0500300e310c300a06035504031303727361301e170d"
  54             "3136303733303031323335395a170d3236303733303031323335395a300e310c"
  55             "300a0603550403130372736130819f300d06092a864886f70d01010105000381"
  56             "8d0030818902818100b4bb498f8279303d980836399b36c6988c0c68de55e1bd"
  57             "b826d3901a2461eafd2de49a91d015abbc9a95137ace6c1af19eaa6af98c7ced",
  58             "43120998e187a80ee0ccb0524b1b018c3e0b63264d449a6d38e22a5fda430846"
  59             "748030530ef0461c8ca9d9efbfae8ea6d1d03e2bd193eff0ab9a8002c47428a6"
  60             "d35a8d88d79f7f1e3f0203010001a31a301830090603551d1304023000300b06"
  61             "03551d0f0404030205a0300d06092a864886f70d01010b05000381810085aad2"
  62             "a0e5b9276b908c65f73a7267170618a54c5f8a7b337d2df7a594365417f2eae8"
  63             "f8a58c8f8172f9319cf36b7fd6c55b80f21a03015156726096fd335e5e67f2db"
  64             "f102702e608ccae6bec1fc63a42a99be5c3eb7107c3c54e9b9eb2bd5203b1c3b",
  65             "84e0a8b2f759409ba3eac9d91d402dcc0cc8f8961229ac9187b42b4de100000f"
  66             "00008408040080134e22eac57321ab47db6b38b2992cec2dd79bd065a034a9af"
  67             "6b9e3d03475e4309e6523ccdf055453fb480804a3a7e996229eb28e734f6702b"
  68             "ea2b32149899ac043a4b44468197868da77147ce9f73c0543c4e3fc33e306cac"
  69             "8506faa80a959c5f1edccbee76eda1ad7a4fa440de35dcb87e82ec94e8725355"
  70             "ce7507713a609e140000207304bb73321f01b71dd94622fae98daf634490d220"
  71             "e4c8f3ffa2559911a56e5116"
  72         },
  73         {
  74             "40ae92071a3a548b26af31e116dfc0ba4549210b17e70da16cfbda9ccdad844d"
  75             "94264a9ae65b786b3eaf0de20aa89c6babb448b6f32d07f233584296eefe1931"
  76             "6bd979659472ee8567cb01d70b0366cddb3c60eb9e1d789a3691dc254c14de73"
  77             "f4f20100504544ce184d44547e124b1f18303b4859f8f2e2b04423d23a866b43"
  78             "866374d54af41649d25f4a3ec2cecd5d4e6de1b24953440b46fbb74c1dbec6fb"
  79             "b1f16bc21d4aa0e1e936a49c07127e19719bc652a2f0b7f8df4a150b2b3c9e9e"
  80             "353d6ed101970ddc611abad0632c6793f9379c9d06846c311fcbd6f85edd569b",
  81             "8782c4c5f62294c4611ae60f83230a53aa95e3bcbed204f19a7a1db83c0fbfec"
  82             "1edd2c17498fa7b5aa2321248a92592d891e4947df6bcef52f4481797d032ad3"
  83             "32046a384abece6454b3e356d7249bfa5696793c7f7d3048dc87fa7409a46918"
  84             "87caaf0982c402b902d699f62dc4d5e153f13e8589e4a6206c7f74eb26ddefbb"
  85             "92309fb753decfea972dec7de02eda9c6d26acd7be53a8aa20f1a93f082ae6eb"
  86             "927a6a1b7bd9153551aedfaf94f61dd4cb9355ad7ab09f615d9f92c21712c732"
  87             "c0e7e117797f38cbdc184e3a65e15a89f46cb3624f5fdb8dbbd275f2c8492f8d",
  88             "95bdbd8d1dc1b9f21107bd433acbbac247239c073a2f24a4a9f8074f325f277d"
  89             "579b6bff0269ff19aed3809a9ddd21dd29c1363c9dc44812dd41d2111f9c2e83"
  90             "42046c14133b853262676f15e94de18660e04ae5c0c661ea43559af5842e161c"
  91             "83dd29f64508b2ec3e635a2134fc0e1a39d3ecb51dcddfcf8382c88ffe2a7378"
  92             "42ad1de7fe505b6c4d1673870f6fc2a0f2f7972acaee368a1599d64ba18798f1"
  93             "0333f9779bd5b05f9b084d03dab2f3d80c2eb74ec70c9866ea31c18b491cd597"
  94             "aae3e941205fcc38a3a10ce8c0269f02ccc9c51278e25f1a0f0731a9"
  95         },
  96         "d2dd45f87ad87801a85ac38187f9023b",
  97         "f0a14f808692cef87a3daf70",
  98         "0000000000000000"
  99     },
 100     {
 101         /* Client: Finished */
 102         {
 103             "1400002078367856d3c8cc4e0a95eb98906ca7a48bd3cc7029f48bd4ae0dc91a"
 104             "b903ca8916","",""
 105         },
 106         {
 107             "fa15e92daa21cd05d8f9c3152a61748d9aaf049da559718e583f95aacecad657"
 108             "b52a6562da09a5819e864d86ac2989360a1eb22795","",""
 109         },
 110         "40e1201d75d419627f04c88530a15c9d",
 111         "a0f073f3b35e18f96969696b",
 112         "0000000000000000"
 113     },
 114     {
 115         /* Server: NewSessionTicket */
 116         {
 117             "040000a60002a3004abe594b00924e535321cadc96238da09caf9b02fecafdd6"
 118             "5e3e418f03e43772cf512ed8066100503b1c08abbbf298a9d138ce821dd12fe1"
 119             "710e2137cd12e6a85cd3fd7f73706e7f5dddefb87c1ef83824638464099c9d13"
 120             "63e3c64ed2075c16b8ccd8e524a6bbd7a6a6e34ea1579782b15bbe7dfed5c0c0"
 121             "d980fb330f9d8ab252ffe7be1277d418b6828ead4dae3b30d448442417ef76af"
 122             "0008002e00040002000016","",""
 123         },
 124         {
 125             "45a6626fa13b66ce2c5b3ef807e299a118296f26a2dd9ec7487a0673e2460d4c"
 126             "79f40087dcd014c59c51379c90d26b4e4f9bb2b78f5b6761594f013ff3e4c78d"
 127             "836905229eac811c4ef8b2faa89867e9ffc586f7f03c216591aa5e620eac3c62"
 128             "dfe60f846036bd7ecc4464b584af184e9644e94ee1d7834dba408a51cbe42480"
 129             "04796ed9c558e0f5f96115a6f6ba487e17d16a2e20a3d3a650a9a070fb53d9da"
 130             "82864b5621d77650bd0c7947e9889917b53d0515627c72b0ded521","",""
 131         },
 132         "3381f6b3f94500f16226de440193e858",
 133         "4f1d73cc1d465eb30021c41f",
 134         "0000000000000000"
 135     },
 136     {
 137         /* Client: Application Data */
 138         {
 139             "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"
 140             "202122232425262728292a2b2c2d2e2f303117","",""
 141         },
 142         {
 143             "e306178ad97f74bb64f35eaf3c39846b83aef8472cbc9046749b81a949dfb12c"
 144             "fbc65cbabd20ade92c1f944605892ceeb12fdee8a927bce77c83036ac5a794a8"
 145             "f54a69","",""
 146         },
 147         "eb23a804904b80ba4fe8399e09b1ce42",
 148         "efa8c50c06b9c9b8c483e174",
 149         "0000000000000000"
 150     },
 151     {
 152         /* Server: Application Data */
 153         {
 154             "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"
 155             "202122232425262728292a2b2c2d2e2f303117","",""
 156         },
 157         {
 158             "467d99a807dbf778e6ffd8be52456c70665f890811ef2f3c495d5bbe983feeda"
 159             "b0c251dde596bc7e2b135909ec9f9166fb0152e8c16a84e4b1039256467f9538"
 160             "be4463","",""
 161         },
 162         "3381f6b3f94500f16226de440193e858",
 163         "4f1d73cc1d465eb30021c41f",
 164         "0000000000000001"
 165     },
 166     {
 167         /* Client: CloseNotify */
 168         {
 169             "010015","",""
 170         },
 171         {
 172             "6bdf60847ba6fb650da36e872adc684a4af2e8","",""
 173         },
 174         "eb23a804904b80ba4fe8399e09b1ce42",
 175         "efa8c50c06b9c9b8c483e174",
 176         "0000000000000001"
 177     },
 178     {
 179         /* Server: CloseNotify */
 180         {
 181             "010015","",""
 182         },
 183         {
 184             "621b7cc1962cd8a70109fee68a52efedf87d2e","",""
 185         },
 186         "3381f6b3f94500f16226de440193e858",
 187         "4f1d73cc1d465eb30021c41f",
 188         "0000000000000002"
 189     }
 190 };
 191
 192 /*
 193  * Same thing as OPENSSL_hexstr2buf() but enables us to pass the string in
 194  * 3 chunks
 195  */
 196 static unsigned char *multihexstr2buf(const char *str[3], size_t *len)
 197 {
 198     size_t outer, inner, curr = 0;
 199     unsigned char *outbuf;
 200     size_t totlen = 0;
 201
 202     /* Check lengths of all input strings are even */
 203     for (outer = 0; outer < 3; outer++) {
 204         totlen += strlen(str[outer]);
 205         if ((totlen & 1) != 0)
 206             return NULL;
 207     }
 208
 209     totlen /= 2;
 210     outbuf = OPENSSL_malloc(totlen);
 211     if (outbuf == NULL)
 212         return NULL;
 213
 214     for (outer = 0; outer < 3; outer++) {
 215         for (inner = 0; str[outer][inner] != 0; inner += 2) {
 216             int hi, lo;
 217
 218             hi = OPENSSL_hexchar2int(str[outer][inner]);
 219             lo = OPENSSL_hexchar2int(str[outer][inner + 1]);
 220
 221             if (hi < 0 || lo < 0) {
 222                 OPENSSL_free(outbuf);
 223                 return NULL;
 224             }
 225             outbuf[curr++] = (hi << 4) | lo;
 226         }
 227     }
 228
 229     *len = totlen;
 230     return outbuf;
 231 }
 232
 233 static int load_record(SSL3_RECORD *rec, RECORD_DATA *recd, unsigned char **key,
 234                        unsigned char *iv, size_t ivlen, unsigned char *seq)
 235 {
 236     unsigned char *pt = NULL, *sq = NULL, *ivtmp = NULL;
 237     size_t ptlen;
 238
 239     *key = OPENSSL_hexstr2buf(recd->key, NULL);
 240     ivtmp = OPENSSL_hexstr2buf(recd->iv, NULL);
 241     sq = OPENSSL_hexstr2buf(recd->seq, NULL);
 242     pt = multihexstr2buf(recd->plaintext, &ptlen);
 243
 244     if (*key == NULL || ivtmp == NULL || sq == NULL || pt == NULL)
 245         goto err;
 246
 247     rec->data = rec->input = OPENSSL_malloc(ptlen + EVP_GCM_TLS_TAG_LEN);
 248
 249     if (rec->data == NULL)
 250         goto err;
 251
 252     rec->length = ptlen;
 253     memcpy(rec->data, pt, ptlen);
 254     OPENSSL_free(pt);
 255     memcpy(seq, sq, SEQ_NUM_SIZE);
 256     OPENSSL_free(sq);
 257     memcpy(iv, ivtmp, ivlen);
 258     OPENSSL_free(ivtmp);
 259
 260     return 1;
 261  err:
 262     OPENSSL_free(*key);
 263     *key = NULL;
 264     OPENSSL_free(ivtmp);
 265     OPENSSL_free(sq);
 266     OPENSSL_free(pt);
 267     return 0;
 268 }
 269
 270 static int test_record(SSL3_RECORD *rec, RECORD_DATA *recd, int enc)
 271 {
 272     int ret = 0;
 273     unsigned char *refd;
 274     size_t refdatalen;
 275
 276     if (enc)
 277         refd = multihexstr2buf(recd->ciphertext, &refdatalen);
 278     else
 279         refd = multihexstr2buf(recd->plaintext, &refdatalen);
 280
 281     if (!TEST_ptr(refd)) {
 282         TEST_info("Failed to get reference data");
 283         goto err;
 284     }
 285
 286     if (!TEST_mem_eq(rec->data, rec->length, refd, refdatalen))
 287         goto err;
 288
 289     ret = 1;
 290
 291  err:
 292     OPENSSL_free(refd);
 293     return ret;
 294 }
 295
 296 #define TLS13_AES_128_GCM_SHA256_BYTES  ((const unsigned char *)"\x13\x01")
 297
 298 static int test_tls13_encryption(void)
 299 {
 300     SSL_CTX *ctx = NULL;
 301     SSL *s = NULL;
 302     SSL3_RECORD rec;
 303     unsigned char *key = NULL, *iv = NULL, *seq = NULL;
 304     const EVP_CIPHER *ciph = EVP_aes_128_gcm();
 305     int ret = 0;
 306     size_t ivlen, ctr;
 307
 308     rec.data = NULL;
 309
 310     ctx = SSL_CTX_new(TLS_method());
 311     if (!TEST_ptr(ctx)) {
 312         TEST_info("Failed creating SSL_CTX");
 313         goto err;
 314     }
 315
 316     s = SSL_new(ctx);
 317     if (!TEST_ptr(s)) {
 318         TEST_info("Failed creating SSL");
 319         goto err;
 320     }
 321
 322     s->enc_read_ctx = EVP_CIPHER_CTX_new();
 323     if (!TEST_ptr(s->enc_read_ctx))
 324         goto err;
 325
 326     s->enc_write_ctx = EVP_CIPHER_CTX_new();
 327     if (!TEST_ptr(s->enc_write_ctx))
 328         goto err;
 329
 330     s->s3->tmp.new_cipher = SSL_CIPHER_find(s, TLS13_AES_128_GCM_SHA256_BYTES);
 331     if (!TEST_ptr(s->s3->tmp.new_cipher)) {
 332         TEST_info("Failed to find cipher");
 333         goto err;
 334     }
 335
 336     for (ctr = 0; ctr < OSSL_NELEM(refdata); ctr++) {
 337         /* Load the record */
 338         ivlen = EVP_CIPHER_iv_length(ciph);
 339         if (!load_record(&rec, &refdata[ctr], &key, s->read_iv, ivlen,
 340                          RECORD_LAYER_get_read_sequence(&s->rlayer))) {
 341             TEST_error("Failed loading key into EVP_CIPHER_CTX");
 342             goto err;
 343         }
 344
 345         /* Set up the read/write sequences */
 346         memcpy(RECORD_LAYER_get_write_sequence(&s->rlayer),
 347                RECORD_LAYER_get_read_sequence(&s->rlayer), SEQ_NUM_SIZE);
 348         memcpy(s->write_iv, s->read_iv, ivlen);
 349
 350         /* Load the key into the EVP_CIPHER_CTXs */
 351         if (EVP_CipherInit_ex(s->enc_write_ctx, ciph, NULL, key, NULL, 1) <= 0
 352                 || EVP_CipherInit_ex(s->enc_read_ctx, ciph, NULL, key, NULL, 0)
 353                    <= 0) {
 354             TEST_error("Failed loading key into EVP_CIPHER_CTX\n");
 355             goto err;
 356         }
 357
 358         /* Encrypt it */
 359         if (!TEST_size_t_eq(tls13_enc(s, &rec, 1, 1), 1)) {
 360             TEST_info("Failed to encrypt record %zu", ctr);
 361             goto err;
 362         }
 363         if (!TEST_true(test_record(&rec, &refdata[ctr], 1))) {
 364             TEST_info("Record %zu encryption test failed", ctr);
 365             goto err;
 366         }
 367
 368         /* Decrypt it */
 369         if (!TEST_int_eq(tls13_enc(s, &rec, 1, 0), 1)) {
 370             TEST_info("Failed to decrypt record %zu", ctr);
 371             goto err;
 372         }
 373         if (!TEST_true(test_record(&rec, &refdata[ctr], 0))) {
 374             TEST_info("Record %zu decryption test failed", ctr);
 375             goto err;
 376         }
 377
 378         OPENSSL_free(rec.data);
 379         OPENSSL_free(key);
 380         OPENSSL_free(iv);
 381         OPENSSL_free(seq);
 382         rec.data = NULL;
 383         key = NULL;
 384         iv = NULL;
 385         seq = NULL;
 386     }
 387
 388     fprintf(stderr, "PASS: %"OSSLzu" records tested\n", ctr);
 389     ret = 1;
 390
 391  err:
 392     OPENSSL_free(rec.data);
 393     OPENSSL_free(key);
 394     OPENSSL_free(iv);
 395     OPENSSL_free(seq);
 396     SSL_free(s);
 397     SSL_CTX_free(ctx);
 398     return ret;
 399 }
 400
 401 void register_tests(void)
 402 {
 403     ADD_TEST(test_tls13_encryption);
 404 }