1 /* Copyright (c) 2020, Google Inc.
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14
15 #include <stdio.h>
16 #include <string.h>
17 #include <time.h>
18
19 #include <algorithm>
20 #include <limits>
21 #include <string>
22 #include <tuple>
23 #include <utility>
24 #include <vector>
25
26 #include <gtest/gtest.h>
27
28 #include <openssl/bytestring.h>
29 #include <openssl/curve25519.h>
30 #include <openssl/evp.h>
31 #include <openssl/mem.h>
32 #include <openssl/rand.h>
33 #include <openssl/sha.h>
34 #include <openssl/trust_token.h>
35
36 #include "../ec_extra/internal.h"
37 #include "../fipsmodule/ec/internal.h"
38 #include "../internal.h"
39 #include "../test/test_util.h"
40 #include "internal.h"
41
42
43 BSSL_NAMESPACE_BEGIN
44
45 namespace {
46
TEST(TrustTokenTest,KeyGenExp1)47 TEST(TrustTokenTest, KeyGenExp1) {
48 uint8_t priv_key[TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE];
49 uint8_t pub_key[TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE];
50 size_t priv_key_len, pub_key_len;
51 ASSERT_TRUE(TRUST_TOKEN_generate_key(
52 TRUST_TOKEN_experiment_v1(), priv_key, &priv_key_len,
53 TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE, pub_key, &pub_key_len,
54 TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, 0x0001));
55 ASSERT_EQ(292u, priv_key_len);
56 ASSERT_EQ(301u, pub_key_len);
57 }
58
TEST(TrustTokenTest,KeyGenExp2VOPRF)59 TEST(TrustTokenTest, KeyGenExp2VOPRF) {
60 uint8_t priv_key[TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE];
61 uint8_t pub_key[TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE];
62 size_t priv_key_len, pub_key_len;
63 ASSERT_TRUE(TRUST_TOKEN_generate_key(
64 TRUST_TOKEN_experiment_v2_voprf(), priv_key, &priv_key_len,
65 TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE, pub_key, &pub_key_len,
66 TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, 0x0001));
67 ASSERT_EQ(52u, priv_key_len);
68 ASSERT_EQ(101u, pub_key_len);
69 }
70
TEST(TrustTokenTest,KeyGenExp2PMB)71 TEST(TrustTokenTest, KeyGenExp2PMB) {
72 uint8_t priv_key[TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE];
73 uint8_t pub_key[TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE];
74 size_t priv_key_len, pub_key_len;
75 ASSERT_TRUE(TRUST_TOKEN_generate_key(
76 TRUST_TOKEN_experiment_v2_pmb(), priv_key, &priv_key_len,
77 TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE, pub_key, &pub_key_len,
78 TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, 0x0001));
79 ASSERT_EQ(292u, priv_key_len);
80 ASSERT_EQ(295u, pub_key_len);
81 }
82
83 // Test that H in |TRUST_TOKEN_experiment_v1| was computed correctly.
TEST(TrustTokenTest,HExp1)84 TEST(TrustTokenTest, HExp1) {
85 const EC_GROUP *group = EC_GROUP_new_by_curve_name(NID_secp384r1);
86 ASSERT_TRUE(group);
87
88 const uint8_t kHGen[] = "generator";
89 const uint8_t kHLabel[] = "PMBTokens Experiment V1 HashH";
90
91 bssl::UniquePtr<EC_POINT> expected_h(EC_POINT_new(group));
92 ASSERT_TRUE(expected_h);
93 ASSERT_TRUE(ec_hash_to_curve_p384_xmd_sha512_sswu_draft07(
94 group, &expected_h->raw, kHLabel, sizeof(kHLabel), kHGen, sizeof(kHGen)));
95 uint8_t expected_bytes[1 + 2 * EC_MAX_BYTES];
96 size_t expected_len =
97 EC_POINT_point2oct(group, expected_h.get(), POINT_CONVERSION_UNCOMPRESSED,
98 expected_bytes, sizeof(expected_bytes), nullptr);
99
100 uint8_t h[97];
101 ASSERT_TRUE(pmbtoken_exp1_get_h_for_testing(h));
102 EXPECT_EQ(Bytes(h), Bytes(expected_bytes, expected_len));
103 }
104
105 // Test that H in |TRUST_TOKEN_experiment_v2_pmb| was computed correctly.
TEST(TrustTokenTest,HExp2)106 TEST(TrustTokenTest, HExp2) {
107 const EC_GROUP *group = EC_GROUP_new_by_curve_name(NID_secp384r1);
108 ASSERT_TRUE(group);
109
110 const uint8_t kHGen[] = "generator";
111 const uint8_t kHLabel[] = "PMBTokens Experiment V2 HashH";
112
113 bssl::UniquePtr<EC_POINT> expected_h(EC_POINT_new(group));
114 ASSERT_TRUE(expected_h);
115 ASSERT_TRUE(ec_hash_to_curve_p384_xmd_sha512_sswu_draft07(
116 group, &expected_h->raw, kHLabel, sizeof(kHLabel), kHGen, sizeof(kHGen)));
117 uint8_t expected_bytes[1 + 2 * EC_MAX_BYTES];
118 size_t expected_len =
119 EC_POINT_point2oct(group, expected_h.get(), POINT_CONVERSION_UNCOMPRESSED,
120 expected_bytes, sizeof(expected_bytes), nullptr);
121
122 uint8_t h[97];
123 ASSERT_TRUE(pmbtoken_exp2_get_h_for_testing(h));
124 EXPECT_EQ(Bytes(h), Bytes(expected_bytes, expected_len));
125 }
126
AllMethods()127 static std::vector<const TRUST_TOKEN_METHOD *> AllMethods() {
128 return {
129 TRUST_TOKEN_experiment_v1(),
130 TRUST_TOKEN_experiment_v2_voprf(),
131 TRUST_TOKEN_experiment_v2_pmb()
132 };
133 }
134
135 class TrustTokenProtocolTestBase : public ::testing::Test {
136 public:
TrustTokenProtocolTestBase(const TRUST_TOKEN_METHOD * method_arg)137 explicit TrustTokenProtocolTestBase(const TRUST_TOKEN_METHOD *method_arg)
138 : method_(method_arg) {}
139
140 // KeyID returns the key ID associated with key index |i|.
KeyID(size_t i)141 static uint32_t KeyID(size_t i) {
142 // Use a different value from the indices to that we do not mix them up.
143 return 7 + i;
144 }
145
method()146 const TRUST_TOKEN_METHOD *method() { return method_; }
147
148 protected:
SetupContexts()149 void SetupContexts() {
150 client.reset(TRUST_TOKEN_CLIENT_new(method(), client_max_batchsize));
151 ASSERT_TRUE(client);
152 issuer.reset(TRUST_TOKEN_ISSUER_new(method(), issuer_max_batchsize));
153 ASSERT_TRUE(issuer);
154
155 for (size_t i = 0; i < method()->max_keys; i++) {
156 uint8_t priv_key[TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE];
157 uint8_t pub_key[TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE];
158 size_t priv_key_len, pub_key_len, key_index;
159 ASSERT_TRUE(TRUST_TOKEN_generate_key(
160 method(), priv_key, &priv_key_len, TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE,
161 pub_key, &pub_key_len, TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, KeyID(i)));
162 ASSERT_TRUE(TRUST_TOKEN_CLIENT_add_key(client.get(), &key_index, pub_key,
163 pub_key_len));
164 ASSERT_EQ(i, key_index);
165 ASSERT_TRUE(
166 TRUST_TOKEN_ISSUER_add_key(issuer.get(), priv_key, priv_key_len));
167 }
168
169 uint8_t public_key[32], private_key[64];
170 ED25519_keypair(public_key, private_key);
171 bssl::UniquePtr<EVP_PKEY> priv(EVP_PKEY_new_raw_private_key(
172 EVP_PKEY_ED25519, nullptr, private_key, 32));
173 ASSERT_TRUE(priv);
174 bssl::UniquePtr<EVP_PKEY> pub(
175 EVP_PKEY_new_raw_public_key(EVP_PKEY_ED25519, nullptr, public_key, 32));
176 ASSERT_TRUE(pub);
177
178 TRUST_TOKEN_CLIENT_set_srr_key(client.get(), pub.get());
179 TRUST_TOKEN_ISSUER_set_srr_key(issuer.get(), priv.get());
180 RAND_bytes(metadata_key, sizeof(metadata_key));
181 ASSERT_TRUE(TRUST_TOKEN_ISSUER_set_metadata_key(issuer.get(), metadata_key,
182 sizeof(metadata_key)));
183 }
184
185 const TRUST_TOKEN_METHOD *method_;
186 uint16_t client_max_batchsize = 10;
187 uint16_t issuer_max_batchsize = 10;
188 bssl::UniquePtr<TRUST_TOKEN_CLIENT> client;
189 bssl::UniquePtr<TRUST_TOKEN_ISSUER> issuer;
190 uint8_t metadata_key[32];
191 };
192
193 class TrustTokenProtocolTest
194 : public TrustTokenProtocolTestBase,
195 public testing::WithParamInterface<const TRUST_TOKEN_METHOD *> {
196 public:
TrustTokenProtocolTest()197 TrustTokenProtocolTest() : TrustTokenProtocolTestBase(GetParam()) {}
198 };
199
200 INSTANTIATE_TEST_SUITE_P(TrustTokenAllProtocolTest, TrustTokenProtocolTest,
201 testing::ValuesIn(AllMethods()));
202
TEST_P(TrustTokenProtocolTest,InvalidToken)203 TEST_P(TrustTokenProtocolTest, InvalidToken) {
204 ASSERT_NO_FATAL_FAILURE(SetupContexts());
205
206 uint8_t *issue_msg = NULL, *issue_resp = NULL;
207 size_t msg_len, resp_len;
208
209 size_t key_index;
210 size_t tokens_issued;
211 ASSERT_TRUE(
212 TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg, &msg_len, 1));
213 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
214 ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
215 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
216 /*public_metadata=*/KeyID(0), /*private_metadata=*/0,
217 /*max_issuance=*/10));
218 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
219 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
220 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
221 resp_len));
222 ASSERT_TRUE(tokens);
223
224 for (TRUST_TOKEN *token : tokens.get()) {
225 // Corrupt the token.
226 token->data[0] ^= 0x42;
227
228 uint8_t *redeem_msg = NULL, *redeem_resp = NULL;
229 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_redemption(
230 client.get(), &redeem_msg, &msg_len, token, NULL, 0, 0));
231 bssl::UniquePtr<uint8_t> free_redeem_msg(redeem_msg);
232 TRUST_TOKEN *rtoken;
233 uint8_t *client_data;
234 size_t client_data_len;
235 uint64_t redemption_time;
236 ASSERT_FALSE(TRUST_TOKEN_ISSUER_redeem(
237 issuer.get(), &redeem_resp, &resp_len, &rtoken, &client_data,
238 &client_data_len, &redemption_time, redeem_msg, msg_len, 600));
239 bssl::UniquePtr<uint8_t> free_redeem_resp(redeem_resp);
240 }
241 }
242
TEST_P(TrustTokenProtocolTest,TruncatedIssuanceRequest)243 TEST_P(TrustTokenProtocolTest, TruncatedIssuanceRequest) {
244 ASSERT_NO_FATAL_FAILURE(SetupContexts());
245
246 uint8_t *issue_msg = NULL, *issue_resp = NULL;
247 size_t msg_len, resp_len;
248 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
249 &msg_len, 10));
250 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
251 msg_len = 10;
252 size_t tokens_issued;
253 ASSERT_FALSE(TRUST_TOKEN_ISSUER_issue(
254 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
255 /*public_metadata=*/KeyID(0), /*private_metadata=*/0,
256 /*max_issuance=*/10));
257 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
258 }
259
TEST_P(TrustTokenProtocolTest,TruncatedIssuanceResponse)260 TEST_P(TrustTokenProtocolTest, TruncatedIssuanceResponse) {
261 ASSERT_NO_FATAL_FAILURE(SetupContexts());
262
263 uint8_t *issue_msg = NULL, *issue_resp = NULL;
264 size_t msg_len, resp_len;
265 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
266 &msg_len, 10));
267 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
268 size_t tokens_issued;
269 ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
270 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
271 /*public_metadata=*/KeyID(0), /*private_metadata=*/0,
272 /*max_issuance=*/10));
273 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
274 resp_len = 10;
275 size_t key_index;
276 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
277 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
278 resp_len));
279 ASSERT_FALSE(tokens);
280 }
281
TEST_P(TrustTokenProtocolTest,ExtraDataIssuanceResponse)282 TEST_P(TrustTokenProtocolTest, ExtraDataIssuanceResponse) {
283 ASSERT_NO_FATAL_FAILURE(SetupContexts());
284
285 uint8_t *request = NULL, *response = NULL;
286 size_t request_len, response_len;
287 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &request,
288 &request_len, 10));
289 bssl::UniquePtr<uint8_t> free_request(request);
290 size_t tokens_issued;
291 ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(issuer.get(), &response, &response_len,
292 &tokens_issued, request, request_len,
293 /*public_metadata=*/KeyID(0),
294 /*private_metadata=*/0,
295 /*max_issuance=*/10));
296 bssl::UniquePtr<uint8_t> free_response(response);
297 std::vector<uint8_t> response2(response, response + response_len);
298 response2.push_back(0);
299 size_t key_index;
300 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
301 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index,
302 response2.data(), response2.size()));
303 ASSERT_FALSE(tokens);
304 }
305
TEST_P(TrustTokenProtocolTest,TruncatedRedemptionRequest)306 TEST_P(TrustTokenProtocolTest, TruncatedRedemptionRequest) {
307 ASSERT_NO_FATAL_FAILURE(SetupContexts());
308
309 uint8_t *issue_msg = NULL, *issue_resp = NULL;
310 size_t msg_len, resp_len;
311 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
312 &msg_len, 10));
313 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
314 size_t tokens_issued;
315 ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
316 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
317 /*public_metadata=*/KeyID(0), /*private_metadata=*/0,
318 /*max_issuance=*/10));
319 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
320 size_t key_index;
321 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
322 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
323 resp_len));
324 ASSERT_TRUE(tokens);
325
326 for (TRUST_TOKEN *token : tokens.get()) {
327 const uint8_t kClientData[] = "\x70TEST CLIENT DATA";
328 uint64_t kRedemptionTime = (method()->has_srr ? 13374242 : 0);
329
330 uint8_t *redeem_msg = NULL, *redeem_resp = NULL;
331 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_redemption(
332 client.get(), &redeem_msg, &msg_len, token, kClientData,
333 sizeof(kClientData) - 1, kRedemptionTime));
334 bssl::UniquePtr<uint8_t> free_redeem_msg(redeem_msg);
335 msg_len = 10;
336
337 TRUST_TOKEN *rtoken;
338 uint8_t *client_data;
339 size_t client_data_len;
340 uint64_t redemption_time;
341 ASSERT_FALSE(TRUST_TOKEN_ISSUER_redeem(
342 issuer.get(), &redeem_resp, &resp_len, &rtoken, &client_data,
343 &client_data_len, &redemption_time, redeem_msg, msg_len, 600));
344 }
345 }
346
TEST_P(TrustTokenProtocolTest,TruncatedRedemptionResponse)347 TEST_P(TrustTokenProtocolTest, TruncatedRedemptionResponse) {
348 ASSERT_NO_FATAL_FAILURE(SetupContexts());
349
350 uint8_t *issue_msg = NULL, *issue_resp = NULL;
351 size_t msg_len, resp_len;
352 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
353 &msg_len, 10));
354 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
355 size_t tokens_issued;
356 ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
357 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
358 /*public_metadata=*/KeyID(0), /*private_metadata=*/0,
359 /*max_issuance=*/10));
360 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
361 size_t key_index;
362 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
363 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
364 resp_len));
365 ASSERT_TRUE(tokens);
366
367 for (TRUST_TOKEN *token : tokens.get()) {
368 const uint8_t kClientData[] = "\x70TEST CLIENT DATA";
369 uint64_t kRedemptionTime = 0;
370
371 uint8_t *redeem_msg = NULL, *redeem_resp = NULL;
372 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_redemption(
373 client.get(), &redeem_msg, &msg_len, token, kClientData,
374 sizeof(kClientData) - 1, kRedemptionTime));
375 bssl::UniquePtr<uint8_t> free_redeem_msg(redeem_msg);
376 TRUST_TOKEN *rtoken;
377 uint8_t *client_data;
378 size_t client_data_len;
379 uint64_t redemption_time;
380 ASSERT_TRUE(TRUST_TOKEN_ISSUER_redeem(
381 issuer.get(), &redeem_resp, &resp_len, &rtoken, &client_data,
382 &client_data_len, &redemption_time, redeem_msg, msg_len, 600));
383 bssl::UniquePtr<uint8_t> free_redeem_resp(redeem_resp);
384 bssl::UniquePtr<uint8_t> free_client_data(client_data);
385 bssl::UniquePtr<TRUST_TOKEN> free_rtoken(rtoken);
386
387 ASSERT_EQ(redemption_time, kRedemptionTime);
388 ASSERT_EQ(Bytes(kClientData, sizeof(kClientData) - 1),
389 Bytes(client_data, client_data_len));
390 resp_len = 10;
391
392 // If the protocol doesn't use SRRs, TRUST_TOKEN_CLIENT_finish_redemtpion
393 // leaves all SRR validation to the caller.
394 uint8_t *srr = NULL, *sig = NULL;
395 size_t srr_len, sig_len;
396 bool expect_failure = !method()->has_srr;
397 ASSERT_EQ(expect_failure, TRUST_TOKEN_CLIENT_finish_redemption(
398 client.get(), &srr, &srr_len, &sig, &sig_len,
399 redeem_resp, resp_len));
400 bssl::UniquePtr<uint8_t> free_srr(srr);
401 bssl::UniquePtr<uint8_t> free_sig(sig);
402 }
403 }
404
TEST_P(TrustTokenProtocolTest,IssuedWithBadKeyID)405 TEST_P(TrustTokenProtocolTest, IssuedWithBadKeyID) {
406 client.reset(TRUST_TOKEN_CLIENT_new(method(), client_max_batchsize));
407 ASSERT_TRUE(client);
408 issuer.reset(TRUST_TOKEN_ISSUER_new(method(), issuer_max_batchsize));
409 ASSERT_TRUE(issuer);
410
411 // We configure the client and the issuer with different key IDs and test
412 // that the client notices.
413 const uint32_t kClientKeyID = 0;
414 const uint32_t kIssuerKeyID = 42;
415
416 uint8_t priv_key[TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE];
417 uint8_t pub_key[TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE];
418 size_t priv_key_len, pub_key_len, key_index;
419 ASSERT_TRUE(TRUST_TOKEN_generate_key(
420 method(), priv_key, &priv_key_len, TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE,
421 pub_key, &pub_key_len, TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, kClientKeyID));
422 ASSERT_TRUE(TRUST_TOKEN_CLIENT_add_key(client.get(), &key_index, pub_key,
423 pub_key_len));
424 ASSERT_EQ(0UL, key_index);
425
426 ASSERT_TRUE(TRUST_TOKEN_generate_key(
427 method(), priv_key, &priv_key_len, TRUST_TOKEN_MAX_PRIVATE_KEY_SIZE,
428 pub_key, &pub_key_len, TRUST_TOKEN_MAX_PUBLIC_KEY_SIZE, kIssuerKeyID));
429 ASSERT_TRUE(TRUST_TOKEN_ISSUER_add_key(issuer.get(), priv_key, priv_key_len));
430
431
432 uint8_t public_key[32], private_key[64];
433 ED25519_keypair(public_key, private_key);
434 bssl::UniquePtr<EVP_PKEY> priv(
435 EVP_PKEY_new_raw_private_key(EVP_PKEY_ED25519, nullptr, private_key, 32));
436 ASSERT_TRUE(priv);
437 bssl::UniquePtr<EVP_PKEY> pub(
438 EVP_PKEY_new_raw_public_key(EVP_PKEY_ED25519, nullptr, public_key, 32));
439 ASSERT_TRUE(pub);
440
441 TRUST_TOKEN_CLIENT_set_srr_key(client.get(), pub.get());
442 TRUST_TOKEN_ISSUER_set_srr_key(issuer.get(), priv.get());
443 RAND_bytes(metadata_key, sizeof(metadata_key));
444 ASSERT_TRUE(TRUST_TOKEN_ISSUER_set_metadata_key(issuer.get(), metadata_key,
445 sizeof(metadata_key)));
446
447
448 uint8_t *issue_msg = NULL, *issue_resp = NULL;
449 size_t msg_len, resp_len;
450 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
451 &msg_len, 10));
452 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
453 size_t tokens_issued;
454 ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
455 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
456 /*public_metadata=*/42, /*private_metadata=*/0, /*max_issuance=*/10));
457 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
458 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
459 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
460 resp_len));
461 ASSERT_FALSE(tokens);
462 }
463
464 class TrustTokenMetadataTest
465 : public TrustTokenProtocolTestBase,
466 public testing::WithParamInterface<
467 std::tuple<const TRUST_TOKEN_METHOD *, int, bool>> {
468 public:
TrustTokenMetadataTest()469 TrustTokenMetadataTest()
470 : TrustTokenProtocolTestBase(std::get<0>(GetParam())) {}
471
public_metadata()472 int public_metadata() { return std::get<1>(GetParam()); }
private_metadata()473 bool private_metadata() { return std::get<2>(GetParam()); }
474 };
475
TEST_P(TrustTokenMetadataTest,SetAndGetMetadata)476 TEST_P(TrustTokenMetadataTest, SetAndGetMetadata) {
477 ASSERT_NO_FATAL_FAILURE(SetupContexts());
478
479 uint8_t *issue_msg = NULL, *issue_resp = NULL;
480 size_t msg_len, resp_len;
481 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
482 &msg_len, 10));
483 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
484 size_t tokens_issued;
485 bool result = TRUST_TOKEN_ISSUER_issue(
486 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
487 public_metadata(), private_metadata(), /*max_issuance=*/1);
488 if (!method()->has_private_metadata && private_metadata()) {
489 ASSERT_FALSE(result);
490 return;
491 }
492 ASSERT_TRUE(result);
493 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
494 size_t key_index;
495 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
496 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
497 resp_len));
498 ASSERT_TRUE(tokens);
499
500 for (TRUST_TOKEN *token : tokens.get()) {
501 const uint8_t kClientData[] = "\x70TEST CLIENT DATA";
502 uint64_t kRedemptionTime = (method()->has_srr ? 13374242 : 0);
503
504 const uint8_t kExpectedSRRV1[] =
505 "\xa4\x68\x6d\x65\x74\x61\x64\x61\x74\x61\xa2\x66\x70\x75\x62\x6c\x69"
506 "\x63\x00\x67\x70\x72\x69\x76\x61\x74\x65\x00\x6a\x74\x6f\x6b\x65\x6e"
507 "\x2d\x68\x61\x73\x68\x58\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
508 "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
509 "\x00\x00\x00\x00\x00\x6b\x63\x6c\x69\x65\x6e\x74\x2d\x64\x61\x74\x61"
510 "\x70\x54\x45\x53\x54\x20\x43\x4c\x49\x45\x4e\x54\x20\x44\x41\x54\x41"
511 "\x70\x65\x78\x70\x69\x72\x79\x2d\x74\x69\x6d\x65\x73\x74\x61\x6d\x70"
512 "\x1a\x00\xcc\x15\x7a";
513
514 const uint8_t kExpectedSRRV2[] =
515 "\xa4\x68\x6d\x65\x74\x61\x64\x61\x74\x61\xa2\x66\x70\x75\x62\x6c\x69"
516 "\x63\x00\x67\x70\x72\x69\x76\x61\x74\x65\x00\x6a\x74\x6f\x6b\x65\x6e"
517 "\x2d\x68\x61\x73\x68\x58\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
518 "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
519 "\x00\x00\x00\x00\x00\x6b\x63\x6c\x69\x65\x6e\x74\x2d\x64\x61\x74\x61"
520 "\x70\x54\x45\x53\x54\x20\x43\x4c\x49\x45\x4e\x54\x20\x44\x41\x54\x41"
521 "\x70\x65\x78\x70\x69\x72\x79\x2d\x74\x69\x6d\x65\x73\x74\x61\x6d\x70"
522 "\x00";
523
524 const uint8_t *expected_srr = kExpectedSRRV1;
525 size_t expected_srr_len = sizeof(kExpectedSRRV1) - 1;
526 if (!method()->has_srr) {
527 expected_srr = kExpectedSRRV2;
528 expected_srr_len = sizeof(kExpectedSRRV2) - 1;
529 }
530
531 uint8_t *redeem_msg = NULL, *redeem_resp = NULL;
532 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_redemption(
533 client.get(), &redeem_msg, &msg_len, token, kClientData,
534 sizeof(kClientData) - 1, kRedemptionTime));
535 bssl::UniquePtr<uint8_t> free_redeem_msg(redeem_msg);
536 TRUST_TOKEN *rtoken;
537 uint8_t *client_data;
538 size_t client_data_len;
539 uint64_t redemption_time;
540 ASSERT_TRUE(TRUST_TOKEN_ISSUER_redeem(
541 issuer.get(), &redeem_resp, &resp_len, &rtoken, &client_data,
542 &client_data_len, &redemption_time, redeem_msg, msg_len, 600));
543 bssl::UniquePtr<uint8_t> free_redeem_resp(redeem_resp);
544 bssl::UniquePtr<uint8_t> free_client_data(client_data);
545 bssl::UniquePtr<TRUST_TOKEN> free_rtoken(rtoken);
546
547 ASSERT_EQ(redemption_time, kRedemptionTime);
548 ASSERT_EQ(Bytes(kClientData, sizeof(kClientData) - 1),
549 Bytes(client_data, client_data_len));
550
551 uint8_t *srr = NULL, *sig = NULL;
552 size_t srr_len, sig_len;
553 ASSERT_TRUE(TRUST_TOKEN_CLIENT_finish_redemption(
554 client.get(), &srr, &srr_len, &sig, &sig_len, redeem_resp, resp_len));
555 bssl::UniquePtr<uint8_t> free_srr(srr);
556 bssl::UniquePtr<uint8_t> free_sig(sig);
557
558 if (!method()->has_srr) {
559 size_t b64_len;
560 ASSERT_TRUE(EVP_EncodedLength(&b64_len, expected_srr_len));
561 b64_len -= 1;
562 const char kSRRHeader[] = "body=:";
563 ASSERT_LT(sizeof(kSRRHeader) - 1 + b64_len, srr_len);
564
565 ASSERT_EQ(Bytes(kSRRHeader, sizeof(kSRRHeader) - 1),
566 Bytes(srr, sizeof(kSRRHeader) - 1));
567 uint8_t *decoded_srr =
568 (uint8_t *)OPENSSL_malloc(expected_srr_len + 2);
569 ASSERT_TRUE(decoded_srr);
570 ASSERT_LE(
571 int(expected_srr_len),
572 EVP_DecodeBlock(decoded_srr, srr + sizeof(kSRRHeader) - 1, b64_len));
573 srr = decoded_srr;
574 srr_len = expected_srr_len;
575 free_srr.reset(srr);
576 }
577
578 const uint8_t kTokenHashDSTLabel[] = "TrustTokenV0 TokenHash";
579 uint8_t token_hash[SHA256_DIGEST_LENGTH];
580 SHA256_CTX sha_ctx;
581 SHA256_Init(&sha_ctx);
582 SHA256_Update(&sha_ctx, kTokenHashDSTLabel, sizeof(kTokenHashDSTLabel));
583 SHA256_Update(&sha_ctx, token->data, token->len);
584 SHA256_Final(token_hash, &sha_ctx);
585
586 // Check the token hash is in the SRR.
587 ASSERT_EQ(Bytes(token_hash), Bytes(srr + 41, sizeof(token_hash)));
588
589 uint8_t decode_private_metadata;
590 ASSERT_TRUE(TRUST_TOKEN_decode_private_metadata(
591 method(), &decode_private_metadata, metadata_key,
592 sizeof(metadata_key), token_hash, sizeof(token_hash), srr[27]));
593 ASSERT_EQ(srr[18], public_metadata());
594 ASSERT_EQ(decode_private_metadata, private_metadata());
595
596 // Clear out the metadata bits.
597 srr[18] = 0;
598 srr[27] = 0;
599
600 // Clear out the token hash.
601 OPENSSL_memset(srr + 41, 0, sizeof(token_hash));
602
603 ASSERT_EQ(Bytes(expected_srr, expected_srr_len),
604 Bytes(srr, srr_len));
605 }
606 }
607
TEST_P(TrustTokenMetadataTest,RawSetAndGetMetadata)608 TEST_P(TrustTokenMetadataTest, RawSetAndGetMetadata) {
609 ASSERT_NO_FATAL_FAILURE(SetupContexts());
610
611 uint8_t *issue_msg = NULL, *issue_resp = NULL;
612 size_t msg_len, resp_len;
613 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
614 &msg_len, 10));
615 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
616 size_t tokens_issued;
617 bool result = TRUST_TOKEN_ISSUER_issue(
618 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
619 public_metadata(), private_metadata(), /*max_issuance=*/1);
620 if (!method()->has_private_metadata && private_metadata()) {
621 ASSERT_FALSE(result);
622 return;
623 }
624 ASSERT_TRUE(result);
625 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
626 size_t key_index;
627 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
628 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
629 resp_len));
630 ASSERT_TRUE(tokens);
631 EXPECT_EQ(1u, sk_TRUST_TOKEN_num(tokens.get()));
632
633 for (TRUST_TOKEN *token : tokens.get()) {
634 const uint8_t kClientData[] = "\x70TEST CLIENT DATA";
635 uint64_t kRedemptionTime = (method()->has_srr ? 13374242 : 0);
636
637 uint8_t *redeem_msg = NULL;
638 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_redemption(
639 client.get(), &redeem_msg, &msg_len, token, kClientData,
640 sizeof(kClientData) - 1, kRedemptionTime));
641 bssl::UniquePtr<uint8_t> free_redeem_msg(redeem_msg);
642 uint32_t public_value;
643 uint8_t private_value;
644 TRUST_TOKEN *rtoken;
645 uint8_t *client_data;
646 size_t client_data_len;
647 ASSERT_TRUE(TRUST_TOKEN_ISSUER_redeem_raw(
648 issuer.get(), &public_value, &private_value, &rtoken,
649 &client_data, &client_data_len, redeem_msg, msg_len));
650 bssl::UniquePtr<uint8_t> free_client_data(client_data);
651 bssl::UniquePtr<TRUST_TOKEN> free_rtoken(rtoken);
652
653 ASSERT_EQ(Bytes(kClientData, sizeof(kClientData) - 1),
654 Bytes(client_data, client_data_len));
655 ASSERT_EQ(public_value, static_cast<uint32_t>(public_metadata()));
656 ASSERT_EQ(private_value, private_metadata());
657 }
658 }
659
TEST_P(TrustTokenMetadataTest,TooManyRequests)660 TEST_P(TrustTokenMetadataTest, TooManyRequests) {
661 if (!method()->has_private_metadata && private_metadata()) {
662 return;
663 }
664
665 issuer_max_batchsize = 1;
666 ASSERT_NO_FATAL_FAILURE(SetupContexts());
667
668 uint8_t *issue_msg = NULL, *issue_resp = NULL;
669 size_t msg_len, resp_len;
670 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
671 &msg_len, 10));
672 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
673 size_t tokens_issued;
674 ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
675 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
676 public_metadata(), private_metadata(), /*max_issuance=*/1));
677 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
678 ASSERT_EQ(tokens_issued, issuer_max_batchsize);
679 size_t key_index;
680 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
681 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
682 resp_len));
683 ASSERT_TRUE(tokens);
684 ASSERT_EQ(sk_TRUST_TOKEN_num(tokens.get()), 1UL);
685 }
686
687
TEST_P(TrustTokenMetadataTest,TruncatedProof)688 TEST_P(TrustTokenMetadataTest, TruncatedProof) {
689 if (!method()->has_private_metadata && private_metadata()) {
690 return;
691 }
692
693 ASSERT_NO_FATAL_FAILURE(SetupContexts());
694
695 uint8_t *issue_msg = NULL, *issue_resp = NULL;
696 size_t msg_len, resp_len;
697 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
698 &msg_len, 10));
699 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
700 size_t tokens_issued;
701 ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
702 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
703 public_metadata(), private_metadata(), /*max_issuance=*/1));
704 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
705
706 CBS real_response;
707 CBS_init(&real_response, issue_resp, resp_len);
708 uint16_t count;
709 uint32_t parsed_public_metadata;
710 bssl::ScopedCBB bad_response;
711 ASSERT_TRUE(CBB_init(bad_response.get(), 0));
712 ASSERT_TRUE(CBS_get_u16(&real_response, &count));
713 ASSERT_TRUE(CBB_add_u16(bad_response.get(), count));
714 ASSERT_TRUE(CBS_get_u32(&real_response, &parsed_public_metadata));
715 ASSERT_TRUE(CBB_add_u32(bad_response.get(), parsed_public_metadata));
716
717 const EC_GROUP *group = EC_GROUP_new_by_curve_name(NID_secp384r1);
718 size_t token_length =
719 TRUST_TOKEN_NONCE_SIZE + 2 * (1 + 2 * BN_num_bytes(&group->field));
720 if (method() == TRUST_TOKEN_experiment_v1()) {
721 token_length += 4;
722 }
723 if (method() == TRUST_TOKEN_experiment_v2_voprf()) {
724 token_length = 1 + 2 * BN_num_bytes(&group->field);
725 }
726 for (size_t i = 0; i < count; i++) {
727 ASSERT_TRUE(CBB_add_bytes(bad_response.get(), CBS_data(&real_response),
728 token_length));
729 ASSERT_TRUE(CBS_skip(&real_response, token_length));
730 }
731
732 CBS tmp;
733 ASSERT_TRUE(CBS_get_u16_length_prefixed(&real_response, &tmp));
734 CBB dleq;
735 ASSERT_TRUE(CBB_add_u16_length_prefixed(bad_response.get(), &dleq));
736 ASSERT_TRUE(CBB_add_bytes(&dleq, CBS_data(&tmp), CBS_len(&tmp) - 2));
737 ASSERT_TRUE(CBB_flush(bad_response.get()));
738
739 uint8_t *bad_buf;
740 size_t bad_len;
741 ASSERT_TRUE(CBB_finish(bad_response.get(), &bad_buf, &bad_len));
742 bssl::UniquePtr<uint8_t> free_bad(bad_buf);
743
744 size_t key_index;
745 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
746 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, bad_buf,
747 bad_len));
748 ASSERT_FALSE(tokens);
749 }
750
TEST_P(TrustTokenMetadataTest,ExcessDataProof)751 TEST_P(TrustTokenMetadataTest, ExcessDataProof) {
752 if (!method()->has_private_metadata && private_metadata()) {
753 return;
754 }
755
756 ASSERT_NO_FATAL_FAILURE(SetupContexts());
757
758 uint8_t *issue_msg = NULL, *issue_resp = NULL;
759 size_t msg_len, resp_len;
760 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
761 &msg_len, 10));
762 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
763 size_t tokens_issued;
764 ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
765 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
766 public_metadata(), private_metadata(), /*max_issuance=*/1));
767 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
768
769 CBS real_response;
770 CBS_init(&real_response, issue_resp, resp_len);
771 uint16_t count;
772 uint32_t parsed_public_metadata;
773 bssl::ScopedCBB bad_response;
774 ASSERT_TRUE(CBB_init(bad_response.get(), 0));
775 ASSERT_TRUE(CBS_get_u16(&real_response, &count));
776 ASSERT_TRUE(CBB_add_u16(bad_response.get(), count));
777 ASSERT_TRUE(CBS_get_u32(&real_response, &parsed_public_metadata));
778 ASSERT_TRUE(CBB_add_u32(bad_response.get(), parsed_public_metadata));
779
780 const EC_GROUP *group = EC_GROUP_new_by_curve_name(NID_secp384r1);
781 size_t token_length =
782 TRUST_TOKEN_NONCE_SIZE + 2 * (1 + 2 * BN_num_bytes(&group->field));
783 if (method() == TRUST_TOKEN_experiment_v1()) {
784 token_length += 4;
785 }
786 if (method() == TRUST_TOKEN_experiment_v2_voprf()) {
787 token_length = 1 + 2 * BN_num_bytes(&group->field);
788 }
789 for (size_t i = 0; i < count; i++) {
790 ASSERT_TRUE(CBB_add_bytes(bad_response.get(), CBS_data(&real_response),
791 token_length));
792 ASSERT_TRUE(CBS_skip(&real_response, token_length));
793 }
794
795 CBS tmp;
796 ASSERT_TRUE(CBS_get_u16_length_prefixed(&real_response, &tmp));
797 CBB dleq;
798 ASSERT_TRUE(CBB_add_u16_length_prefixed(bad_response.get(), &dleq));
799 ASSERT_TRUE(CBB_add_bytes(&dleq, CBS_data(&tmp), CBS_len(&tmp)));
800 ASSERT_TRUE(CBB_add_u16(&dleq, 42));
801 ASSERT_TRUE(CBB_flush(bad_response.get()));
802
803 uint8_t *bad_buf;
804 size_t bad_len;
805 ASSERT_TRUE(CBB_finish(bad_response.get(), &bad_buf, &bad_len));
806 bssl::UniquePtr<uint8_t> free_bad(bad_buf);
807
808 size_t key_index;
809 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
810 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, bad_buf,
811 bad_len));
812 ASSERT_FALSE(tokens);
813 }
814
815 INSTANTIATE_TEST_SUITE_P(
816 TrustTokenAllMetadataTest, TrustTokenMetadataTest,
817 testing::Combine(testing::ValuesIn(AllMethods()),
818 testing::Values(TrustTokenProtocolTest::KeyID(0),
819 TrustTokenProtocolTest::KeyID(1),
820 TrustTokenProtocolTest::KeyID(2)),
821 testing::Bool()));
822
823 class TrustTokenBadKeyTest
824 : public TrustTokenProtocolTestBase,
825 public testing::WithParamInterface<
826 std::tuple<const TRUST_TOKEN_METHOD *, bool, int>> {
827 public:
TrustTokenBadKeyTest()828 TrustTokenBadKeyTest()
829 : TrustTokenProtocolTestBase(std::get<0>(GetParam())) {}
830
private_metadata()831 bool private_metadata() { return std::get<1>(GetParam()); }
corrupted_key()832 int corrupted_key() { return std::get<2>(GetParam()); }
833 };
834
TEST_P(TrustTokenBadKeyTest,BadKey)835 TEST_P(TrustTokenBadKeyTest, BadKey) {
836 // For versions without private metadata, only corruptions of 'xs' (the 4th
837 // entry in |scalars| below) result in a bad key, as the other scalars are
838 // unused internally.
839 if (!method()->has_private_metadata &&
840 (private_metadata() || corrupted_key() != 4)) {
841 return;
842 }
843
844 ASSERT_NO_FATAL_FAILURE(SetupContexts());
845
846 uint8_t *issue_msg = NULL, *issue_resp = NULL;
847 size_t msg_len, resp_len;
848 ASSERT_TRUE(TRUST_TOKEN_CLIENT_begin_issuance(client.get(), &issue_msg,
849 &msg_len, 10));
850 bssl::UniquePtr<uint8_t> free_issue_msg(issue_msg);
851
852 struct trust_token_issuer_key_st *key = &issuer->keys[0];
853 EC_SCALAR *scalars[] = {&key->key.x0, &key->key.y0, &key->key.x1,
854 &key->key.y1, &key->key.xs, &key->key.ys};
855
856 // Corrupt private key scalar.
857 scalars[corrupted_key()]->bytes[0] ^= 42;
858
859 size_t tokens_issued;
860 ASSERT_TRUE(TRUST_TOKEN_ISSUER_issue(
861 issuer.get(), &issue_resp, &resp_len, &tokens_issued, issue_msg, msg_len,
862 /*public_metadata=*/7, private_metadata(), /*max_issuance=*/1));
863 bssl::UniquePtr<uint8_t> free_msg(issue_resp);
864 size_t key_index;
865 bssl::UniquePtr<STACK_OF(TRUST_TOKEN)> tokens(
866 TRUST_TOKEN_CLIENT_finish_issuance(client.get(), &key_index, issue_resp,
867 resp_len));
868
869 // If the unused private key is corrupted, then the DLEQ proof should succeed.
870 if ((corrupted_key() / 2 == 0 && private_metadata() == true) ||
871 (corrupted_key() / 2 == 1 && private_metadata() == false)) {
872 ASSERT_TRUE(tokens);
873 } else {
874 ASSERT_FALSE(tokens);
875 }
876 }
877
878 INSTANTIATE_TEST_SUITE_P(TrustTokenAllBadKeyTest, TrustTokenBadKeyTest,
879 testing::Combine(testing::ValuesIn(AllMethods()),
880 testing::Bool(),
881 testing::Values(0, 1, 2, 3, 4, 5)));
882
883 } // namespace
884 BSSL_NAMESPACE_END
885