| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "components/certificate_transparency/chrome_ct_policy_enforcer.h" |
| |
| #include <memory> |
| #include <string> |
| #include <utility> |
| |
| #include "base/build_time.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/test/scoped_feature_list.h" |
| #include "base/test/simple_test_clock.h" |
| #include "base/time/time.h" |
| #include "base/version.h" |
| #include "components/certificate_transparency/ct_known_logs.h" |
| #include "crypto/rsa_private_key.h" |
| #include "crypto/sha2.h" |
| #include "net/cert/ct_policy_status.h" |
| #include "net/cert/x509_certificate.h" |
| #include "net/cert/x509_util.h" |
| #include "net/log/net_log_with_source.h" |
| #include "net/test/cert_test_util.h" |
| #include "net/test/ct_test_util.h" |
| #include "net/test/test_data_directory.h" |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| using net::ct::CTPolicyCompliance; |
| using net::ct::SCTList; |
| using net::ct::SignedCertificateTimestamp; |
| using net::NetLogWithSource; |
| using net::X509Certificate; |
| |
| namespace certificate_transparency { |
| |
| namespace { |
| |
| // A log ID that for test purposes counts as a valid Google operated log. |
| const char kTestGoogleLogID[] = |
| "\x68\xf6\x98\xf8\x1f\x64\x82\xbe\x3a\x8c\xee\xb9\x28\x1d\x4c\xfc\x71\x51" |
| "\x5d\x67\x93\xd4\x44\xd1\x0a\x67\xac\xbb\x4f\x4f\xfb\xc4"; |
| static_assert(std::size(kTestGoogleLogID) - 1 == crypto::kSHA256Length, |
| "Incorrect log ID length."); |
| |
| } // namespace |
| |
| class ChromeCTPolicyEnforcerTest : public ::testing::Test { |
| public: |
| void SetUp() override { |
| auto enforcer = std::make_unique<ChromeCTPolicyEnforcer>( |
| base::Time::Now(), GetDisqualifiedLogs(), GetLogsOperatedByGoogle(), |
| std::map<std::string, OperatorHistoryEntry>()); |
| enforcer->SetClockForTesting(&clock_); |
| policy_enforcer_ = std::move(enforcer); |
| |
| std::string der_test_cert(net::ct::GetDerEncodedX509Cert()); |
| chain_ = X509Certificate::CreateFromBytes( |
| base::as_bytes(base::make_span(der_test_cert))); |
| ASSERT_TRUE(chain_.get()); |
| google_log_id_ = std::string(kTestGoogleLogID, crypto::kSHA256Length); |
| policy_enforcer_->SetValidGoogleLogForTesting(google_log_id_); |
| non_google_log_id_.assign(crypto::kSHA256Length, 1); |
| clock_.SetNow(base::Time::Now()); |
| } |
| |
| void FillListWithSCTsOfOrigin( |
| SignedCertificateTimestamp::Origin desired_origin, |
| size_t num_scts, |
| const std::vector<std::string>& desired_log_keys, |
| bool timestamp_past_2022_policy_date, |
| SCTList* verified_scts) { |
| for (size_t i = 0; i < num_scts; ++i) { |
| scoped_refptr<SignedCertificateTimestamp> sct( |
| new SignedCertificateTimestamp()); |
| sct->origin = desired_origin; |
| if (i < desired_log_keys.size()) |
| sct->log_id = desired_log_keys[i]; |
| else |
| sct->log_id = std::string(crypto::kSHA256Length, static_cast<char>(i)); |
| |
| if (timestamp_past_2022_policy_date) { |
| EXPECT_TRUE(base::Time::FromUTCExploded({2022, 4, 0, 15, 0, 0, 0, 0}, |
| &sct->timestamp)); |
| } else { |
| EXPECT_TRUE(base::Time::FromUTCExploded({2022, 4, 0, 14, 0, 0, 0, 0}, |
| &sct->timestamp)); |
| } |
| |
| verified_scts->push_back(sct); |
| } |
| } |
| |
| void AddDisqualifiedLogSCT(SignedCertificateTimestamp::Origin desired_origin, |
| bool timestamp_after_disqualification_date, |
| bool timestamp_past_2022_policy_date, |
| SCTList* verified_scts) { |
| static const char kTestRetiredLogID[] = |
| "\xcd\xb5\x17\x9b\x7f\xc1\xc0\x46\xfe\xea\x31\x13\x6a\x3f\x8f\x00\x2e" |
| "\x61\x82\xfa\xf8\x89\x6f\xec\xc8\xb2\xf5\xb5\xab\x60\x49\x00"; |
| static_assert(std::size(kTestRetiredLogID) - 1 == crypto::kSHA256Length, |
| "Incorrect log ID length."); |
| base::Time retirement_time; |
| if (timestamp_past_2022_policy_date) { |
| ASSERT_TRUE(base::Time::FromUTCExploded({2022, 4, 0, 16, 0, 0, 0, 0}, |
| &retirement_time)); |
| } else { |
| ASSERT_TRUE(base::Time::FromUTCExploded({2022, 4, 0, 14, 12, 0, 0, 0}, |
| &retirement_time)); |
| } |
| |
| policy_enforcer_->SetDisqualifiedLogForTesting( |
| std::make_pair(std::string(kTestRetiredLogID, 32), retirement_time)); |
| |
| scoped_refptr<SignedCertificateTimestamp> sct( |
| new SignedCertificateTimestamp()); |
| sct->origin = desired_origin; |
| sct->log_id = std::string(kTestRetiredLogID, crypto::kSHA256Length); |
| if (timestamp_after_disqualification_date) { |
| sct->timestamp = retirement_time + base::Hours(1); |
| } else { |
| sct->timestamp = retirement_time - base::Hours(1); |
| } |
| |
| verified_scts->push_back(sct); |
| } |
| |
| void FillListWithSCTsOfOrigin( |
| SignedCertificateTimestamp::Origin desired_origin, |
| size_t num_scts, |
| bool timestamp_past_2022_policy_date, |
| SCTList* verified_scts) { |
| std::vector<std::string> desired_log_ids; |
| desired_log_ids.push_back(google_log_id_); |
| FillListWithSCTsOfOrigin(desired_origin, num_scts, desired_log_ids, |
| timestamp_past_2022_policy_date, verified_scts); |
| } |
| |
| base::Time CreateTime(const base::Time::Exploded& exploded) { |
| base::Time result; |
| if (!base::Time::FromUTCExploded(exploded, &result)) { |
| ADD_FAILURE() << "Failed FromUTCExploded"; |
| } |
| return result; |
| } |
| |
| void FillOperatorHistoryWithDiverseOperators( |
| SCTList scts, |
| std::map<std::string, OperatorHistoryEntry>* operator_history) { |
| for (size_t i = 0; i < scts.size(); i++) { |
| OperatorHistoryEntry entry; |
| entry.current_operator_ = "Operator " + base::NumberToString(i); |
| (*operator_history)[scts[i]->log_id] = entry; |
| } |
| } |
| |
| protected: |
| base::SimpleTestClock clock_; |
| std::unique_ptr<ChromeCTPolicyEnforcer> policy_enforcer_; |
| scoped_refptr<X509Certificate> chain_; |
| std::string google_log_id_; |
| std::string non_google_log_id_; |
| base::test::ScopedFeatureList scoped_feature_list_; |
| }; |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, |
| DoesNotConformToCTPolicyNotEnoughDiverseSCTsAllGoogle) { |
| SCTList scts; |
| std::vector<std::string> desired_log_ids(2, google_log_id_); |
| |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| desired_log_ids.size(), desired_log_ids, false, |
| &scts); |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, |
| DoesNotConformToCTPolicyNotEnoughDiverseSCTsAllNonGoogle) { |
| SCTList scts; |
| std::vector<std::string> desired_log_ids(2, non_google_log_id_); |
| |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| desired_log_ids.size(), desired_log_ids, false, |
| &scts); |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, |
| ConformsToPolicyExactNumberOfSCTsForValidityPeriod) { |
| std::unique_ptr<crypto::RSAPrivateKey> private_key( |
| crypto::RSAPrivateKey::Create(1024)); |
| ASSERT_TRUE(private_key); |
| |
| // Test multiple validity periods |
| base::Time time_2015_3_0_25_11_25_0_0 = |
| CreateTime({2015, 3, 0, 25, 11, 25, 0, 0}); |
| |
| base::Time time_2016_6_0_6_11_25_0_0 = |
| CreateTime({2016, 6, 0, 6, 11, 25, 0, 0}); |
| |
| base::Time time_2016_6_0_25_11_25_0_0 = |
| CreateTime({2016, 6, 0, 25, 11, 25, 0, 0}); |
| |
| base::Time time_2016_6_0_27_11_25_0_0 = |
| CreateTime({2016, 6, 0, 27, 11, 25, 0, 0}); |
| |
| base::Time time_2017_6_0_25_11_25_0_0 = |
| CreateTime({2017, 6, 0, 25, 11, 25, 0, 0}); |
| |
| base::Time time_2017_6_0_28_11_25_0_0 = |
| CreateTime({2017, 6, 0, 28, 11, 25, 0, 0}); |
| |
| base::Time time_2018_6_0_25_11_25_0_0 = |
| CreateTime({2018, 6, 0, 25, 11, 25, 0, 0}); |
| |
| base::Time time_2018_6_0_27_11_25_0_0 = |
| CreateTime({2018, 6, 0, 27, 11, 25, 0, 0}); |
| |
| const struct TestData { |
| base::Time validity_start; |
| base::Time validity_end; |
| size_t scts_required; |
| } kTestData[] = {{// Cert valid for -14 months (nonsensical), needs 2 SCTs. |
| time_2016_6_0_6_11_25_0_0, time_2015_3_0_25_11_25_0_0, 2}, |
| {// Cert valid for 14 months, needs 2 SCTs. |
| time_2015_3_0_25_11_25_0_0, time_2016_6_0_6_11_25_0_0, 2}, |
| {// Cert valid for exactly 15 months, needs 3 SCTs. |
| time_2015_3_0_25_11_25_0_0, time_2016_6_0_25_11_25_0_0, 3}, |
| {// Cert valid for over 15 months, needs 3 SCTs. |
| time_2015_3_0_25_11_25_0_0, time_2016_6_0_27_11_25_0_0, 3}, |
| {// Cert valid for exactly 27 months, needs 3 SCTs. |
| time_2015_3_0_25_11_25_0_0, time_2017_6_0_25_11_25_0_0, 3}, |
| {// Cert valid for over 27 months, needs 4 SCTs. |
| time_2015_3_0_25_11_25_0_0, time_2017_6_0_28_11_25_0_0, 4}, |
| {// Cert valid for exactly 39 months, needs 4 SCTs. |
| time_2015_3_0_25_11_25_0_0, time_2018_6_0_25_11_25_0_0, 4}, |
| {// Cert valid for over 39 months, needs 5 SCTs. |
| time_2015_3_0_25_11_25_0_0, time_2018_6_0_27_11_25_0_0, 5}}; |
| |
| for (size_t i = 0; i < std::size(kTestData); ++i) { |
| SCOPED_TRACE(i); |
| const base::Time& start = kTestData[i].validity_start; |
| const base::Time& end = kTestData[i].validity_end; |
| size_t required_scts = kTestData[i].scts_required; |
| |
| // Create a self-signed certificate with exactly the validity period. |
| std::string cert_data; |
| ASSERT_TRUE(net::x509_util::CreateSelfSignedCert( |
| private_key->key(), net::x509_util::DIGEST_SHA256, "CN=test", |
| i * 10 + required_scts, start, end, {}, &cert_data)); |
| scoped_refptr<X509Certificate> cert(X509Certificate::CreateFromBytes( |
| base::as_bytes(base::make_span(cert_data)))); |
| ASSERT_TRUE(cert); |
| |
| for (size_t j = 0; j < required_scts - 1; ++j) { |
| SCTList scts; |
| std::vector<std::string> desired_logs; |
| desired_logs.push_back(google_log_id_); |
| if (j > 0) { |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, 1, |
| desired_logs, false, &scts); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, |
| j - 1, std::vector<std::string>(), false, |
| &scts); |
| } |
| CTPolicyCompliance expected_failure = |
| j == 1 ? CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS |
| : CTPolicyCompliance::CT_POLICY_NOT_ENOUGH_SCTS; |
| EXPECT_EQ(expected_failure, policy_enforcer_->CheckCompliance( |
| cert.get(), scts, NetLogWithSource())) |
| << " for: " << (end - start).InDays() << " and " << required_scts |
| << " scts=" << scts.size() << " j=" << j; |
| } |
| SCTList scts; |
| std::vector<std::string> desired_logs; |
| desired_logs.push_back(google_log_id_); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, 1, |
| desired_logs, false, &scts); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, |
| required_scts - 1, std::vector<std::string>(), |
| false, &scts); |
| EXPECT_EQ( |
| CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(cert.get(), scts, NetLogWithSource())) |
| << " for: " << (end - start).InDays() << " and " << required_scts |
| << " scts=" << scts.size(); |
| } |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, |
| DoesNotConformToCTPolicyNotEnoughUniqueEmbeddedLogs) { |
| SCTList scts; |
| std::vector<std::string> desired_logs; |
| |
| // One Google Log. |
| desired_logs.clear(); |
| desired_logs.push_back(google_log_id_); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, |
| desired_logs.size(), desired_logs, false, &scts); |
| |
| // Two distinct non-Google logs. |
| desired_logs.clear(); |
| desired_logs.emplace_back(crypto::kSHA256Length, 'A'); |
| desired_logs.emplace_back(crypto::kSHA256Length, 'B'); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, |
| desired_logs.size(), desired_logs, false, &scts); |
| |
| // Two unique SCTs from the same non-Google log. |
| desired_logs.clear(); |
| desired_logs.emplace_back(crypto::kSHA256Length, 'C'); |
| desired_logs.emplace_back(crypto::kSHA256Length, 'C'); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, |
| desired_logs.size(), desired_logs, false, &scts); |
| |
| // |chain_| is valid for 10 years - over 121 months - so requires 5 SCTs. |
| // However, there are only 4 SCTs are from distinct logs. |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_ENOUGH_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, DoesNotConformToCTPolicyNotEnoughFreshSCTs) { |
| SCTList scts; |
| |
| // The results should be the same before and after disqualification, |
| // regardless of the delivery method. |
| |
| // SCT from before disqualification. |
| scts.clear(); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 1, false, &scts); |
| AddDisqualifiedLogSCT(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| false, false, &scts); |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| |
| // SCT from after disqualification. |
| scts.clear(); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 1, false, &scts); |
| AddDisqualifiedLogSCT(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| true, false, &scts); |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| |
| // Embedded SCT from before disqualification. |
| scts.clear(); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 1, false, &scts); |
| AddDisqualifiedLogSCT(SignedCertificateTimestamp::SCT_EMBEDDED, false, false, |
| &scts); |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| |
| // Embedded SCT from after disqualification. |
| scts.clear(); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 1, false, &scts); |
| AddDisqualifiedLogSCT(SignedCertificateTimestamp::SCT_EMBEDDED, true, false, |
| &scts); |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| // Subclass of ChromeCTPolicyEnforcerTest that tests both with the pre-2022 |
| // policy and the 2022 policy. |
| class ChromeCTPolicyEnforcerTestBothPolicies |
| : public ChromeCTPolicyEnforcerTest, |
| public ::testing::WithParamInterface<bool> {}; |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, |
| ConformsToCTPolicyWithNonEmbeddedSCTs) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 2, GetParam(), &scts); |
| if (GetParam()) { |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| } |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, EnforcementDisabledByBinaryAge) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 2, GetParam(), &scts); |
| if (GetParam()) { |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| } |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| |
| clock_.Advance(base::Days(71)); |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_BUILD_NOT_TIMELY, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, |
| ConformsToCTPolicyWithEmbeddedSCTs) { |
| // |chain_| is valid for 10 years - over 121 months - so requires 5 SCTs. |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, 5, |
| GetParam(), &scts); |
| if (GetParam()) { |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| } |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, |
| ConformsToCTPolicyWithPooledNonEmbeddedSCTs) { |
| SCTList scts; |
| std::vector<std::string> desired_logs; |
| |
| // One Google log, delivered via OCSP. |
| desired_logs.clear(); |
| desired_logs.push_back(google_log_id_); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_OCSP_RESPONSE, |
| desired_logs.size(), desired_logs, GetParam(), |
| &scts); |
| |
| // One non-Google log, delivered via TLS. |
| desired_logs.clear(); |
| desired_logs.push_back(non_google_log_id_); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| desired_logs.size(), desired_logs, GetParam(), |
| &scts); |
| if (GetParam()) { |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| } |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, |
| ConformsToCTPolicyWithPooledEmbeddedSCTs) { |
| SCTList scts; |
| std::vector<std::string> desired_logs; |
| |
| // One Google log, delivered embedded. |
| desired_logs.clear(); |
| desired_logs.push_back(google_log_id_); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, |
| desired_logs.size(), desired_logs, GetParam(), |
| &scts); |
| |
| // One non-Google log, delivered via OCSP. |
| desired_logs.clear(); |
| desired_logs.push_back(non_google_log_id_); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_OCSP_RESPONSE, |
| desired_logs.size(), desired_logs, GetParam(), |
| &scts); |
| |
| if (GetParam()) { |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| } |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, |
| DoesNotConformToCTPolicyNotEnoughSCTs) { |
| // |chain_| is valid for 10 years - over 121 months - so requires 5 SCTs. |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, 2, |
| GetParam(), &scts); |
| if (GetParam()) { |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| } |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_ENOUGH_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, |
| ConformsWithDisqualifiedLogBeforeDisqualificationDate) { |
| SCTList scts; |
| std::vector<std::string> desired_log_ids; |
| desired_log_ids.push_back(google_log_id_); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, 1, |
| desired_log_ids, GetParam(), &scts); |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, |
| GetParam() ? 1 : 3, std::vector<std::string>(), |
| GetParam(), &scts); |
| AddDisqualifiedLogSCT(SignedCertificateTimestamp::SCT_EMBEDDED, false, |
| GetParam(), &scts); |
| if (GetParam()) { |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| } |
| |
| // |chain_| is valid for 10 years - over 121 months - so requires 5 SCTs. |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, |
| DoesNotConformWithDisqualifiedLogAfterDisqualificationDate) { |
| SCTList scts; |
| // Add required - 1 valid SCTs (with the old policy 5 are required, with the |
| // new policy 3). |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, |
| GetParam() ? 2 : 4, GetParam(), &scts); |
| AddDisqualifiedLogSCT(SignedCertificateTimestamp::SCT_EMBEDDED, true, |
| GetParam(), &scts); |
| if (GetParam()) { |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| } |
| |
| // |chain_| is valid for 10 years - over 121 months - so requires 5 SCTs. |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_ENOUGH_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, |
| DoesNotConformWithIssuanceDateAfterDisqualificationDate) { |
| SCTList scts; |
| AddDisqualifiedLogSCT(SignedCertificateTimestamp::SCT_EMBEDDED, true, |
| GetParam(), &scts); |
| // Add required - 1 valid SCTs (with the old policy 5 are required, with the |
| // new policy 3). |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, |
| GetParam() ? 2 : 4, GetParam(), &scts); |
| // Make sure all SCTs are after the disqualification date. |
| for (size_t i = 1; i < scts.size(); ++i) |
| scts[i]->timestamp = scts[0]->timestamp; |
| |
| if (GetParam()) { |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| } |
| |
| // |chain_| is valid for 10 years - over 121 months - so requires 5 SCTs. |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_ENOUGH_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, UpdateCTLogList) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 2, GetParam(), &scts); |
| |
| std::vector<std::pair<std::string, base::Time>> disqualified_logs; |
| std::vector<std::string> operated_by_google_logs; |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| for (auto sct : scts) { |
| OperatorHistoryEntry entry; |
| entry.current_operator_ = "Operator"; |
| operator_history[sct->log_id] = entry; |
| } |
| |
| policy_enforcer_->UpdateCTLogList(base::Time::Now(), disqualified_logs, |
| operated_by_google_logs, operator_history); |
| |
| // The check should fail with the old policy since the Google Aviator log is |
| // no longer in the list after the update with an empty list, and with the new |
| // policy since all logs have the same operator. |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| |
| // Update the list again, this time including all the known operated by Google |
| // logs, and setting operators to different values. |
| operated_by_google_logs = certificate_transparency::GetLogsOperatedByGoogle(); |
| operated_by_google_logs.emplace_back(kTestGoogleLogID); |
| std::sort(std::begin(operated_by_google_logs), |
| std::end(operated_by_google_logs)); |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->UpdateCTLogList(base::Time::Now(), disqualified_logs, |
| operated_by_google_logs, operator_history); |
| |
| // The check should now succeed. |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, TimestampUpdates) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 1, GetParam(), &scts); |
| |
| // Clear the log list and set the last updated time to more than 10 weeks ago. |
| std::vector<std::pair<std::string, base::Time>> disqualified_logs; |
| std::vector<std::string> operated_by_google_logs; |
| std::map<std::string, OperatorHistoryEntry> log_operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &log_operator_history); |
| |
| policy_enforcer_->UpdateCTLogList(base::Time::Now() - base::Days(71), |
| disqualified_logs, operated_by_google_logs, |
| log_operator_history); |
| |
| // The check should return build not timely even though there are not enough |
| // SCTs. |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_BUILD_NOT_TIMELY, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| |
| // Update the last update time value again, this time with a recent time. |
| policy_enforcer_->UpdateCTLogList(base::Time::Now(), disqualified_logs, |
| operated_by_google_logs, |
| log_operator_history); |
| |
| // The check should now fail |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, IsLogDisqualifiedTimestamp) { |
| // Clear the log list and add 2 disqualified logs, one with a disqualification |
| // date in the past and one in the future. |
| // The actual logs are irrelevant for this test, so we use Aviator for the one |
| // disqualified in the past, and a modified version of it for disqualified in |
| // the future. |
| const char kModifiedGoogleAviatorLogID[] = |
| "\x68\xf6\x98\xf8\x1f\x64\x82\xbe\x3a\x8c\xee\xb9\x28\x1d\x4c\xfc\x71\x51" |
| "\x5d\x67\x93\xd4\x44\xd1\x0a\x67\xac\xbb\x4f\x4f\x4f\xf4"; |
| std::vector<std::pair<std::string, base::Time>> disqualified_logs; |
| std::vector<std::string> operated_by_google_logs; |
| std::map<std::string, OperatorHistoryEntry> log_operator_history; |
| base::Time past_disqualification = base::Time::Now() - base::Hours(1); |
| base::Time future_disqualification = base::Time::Now() + base::Hours(1); |
| disqualified_logs.emplace_back(kModifiedGoogleAviatorLogID, |
| future_disqualification); |
| disqualified_logs.emplace_back(kTestGoogleLogID, past_disqualification); |
| policy_enforcer_->UpdateCTLogList(base::Time::Now(), disqualified_logs, |
| operated_by_google_logs, |
| log_operator_history); |
| |
| base::Time disqualification_time; |
| EXPECT_TRUE(policy_enforcer_->IsLogDisqualified(kTestGoogleLogID, |
| &disqualification_time)); |
| EXPECT_EQ(disqualification_time, past_disqualification); |
| EXPECT_FALSE(policy_enforcer_->IsLogDisqualified(kModifiedGoogleAviatorLogID, |
| &disqualification_time)); |
| EXPECT_EQ(disqualification_time, future_disqualification); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, |
| IsLogDisqualifiedReturnsFalseOnUnknownLog) { |
| // Clear the log list and add a single disqualified log, with a |
| // disqualification date in the past; |
| const char kModifiedGoogleAviatorLogID[] = |
| "\x68\xf6\x98\xf8\x1f\x64\x82\xbe\x3a\x8c\xee\xb9\x28\x1d\x4c\xfc\x71\x51" |
| "\x5d\x67\x93\xd4\x44\xd1\x0a\x67\xac\xbb\x4f\x4f\x4f\xf4"; |
| std::vector<std::pair<std::string, base::Time>> disqualified_logs; |
| std::vector<std::string> operated_by_google_logs; |
| std::map<std::string, OperatorHistoryEntry> log_operator_history; |
| disqualified_logs.emplace_back(kModifiedGoogleAviatorLogID, |
| base::Time::Now() - base::Days(1)); |
| policy_enforcer_->UpdateCTLogList(base::Time::Now(), disqualified_logs, |
| operated_by_google_logs, |
| log_operator_history); |
| |
| base::Time unused; |
| // IsLogDisqualified should return false for a log that is not in the |
| // disqualified list. |
| EXPECT_FALSE(policy_enforcer_->IsLogDisqualified(kTestGoogleLogID, &unused)); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, |
| ConformsWithCTPolicyFutureRetirementDateLogs) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, 5, |
| GetParam(), &scts); |
| |
| std::vector<std::pair<std::string, base::Time>> disqualified_logs; |
| std::vector<std::string> operated_by_google_logs = {google_log_id_}; |
| std::map<std::string, OperatorHistoryEntry> log_operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &log_operator_history); |
| |
| // Set all the log operators for these SCTs as disqualified, with a timestamp |
| // one hour from now. |
| base::Time retirement_time = base::Time::Now() + base::Hours(1); |
| // This mirrors how FillListWithSCTsOfOrigin generates log ids. |
| disqualified_logs.emplace_back(google_log_id_, retirement_time); |
| for (size_t i = 1; i < 5; ++i) { |
| disqualified_logs.emplace_back( |
| std::string(crypto::kSHA256Length, static_cast<char>(i)), |
| retirement_time); |
| } |
| std::sort(std::begin(disqualified_logs), std::end(disqualified_logs)); |
| |
| policy_enforcer_->UpdateCTLogList(base::Time::Now(), disqualified_logs, |
| operated_by_google_logs, |
| log_operator_history); |
| |
| // SCTs should comply since retirement date is in the future. |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_P(ChromeCTPolicyEnforcerTestBothPolicies, |
| DoesNotConformWithCTPolicyPastRetirementDateLogs) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, 5, |
| GetParam(), &scts); |
| |
| std::vector<std::pair<std::string, base::Time>> disqualified_logs; |
| std::vector<std::string> operated_by_google_logs = {google_log_id_}; |
| std::map<std::string, OperatorHistoryEntry> log_operator_history; |
| |
| // Set all the log operators for these SCTs as disqualiied, with a timestamp |
| // one hour ago. |
| base::Time retirement_time = base::Time::Now() - base::Hours(1); |
| // This mirrors how FillListWithSCTsOfOrigin generates log ids. |
| disqualified_logs.emplace_back(google_log_id_, retirement_time); |
| for (size_t i = 1; i < 5; ++i) { |
| disqualified_logs.emplace_back( |
| std::string(crypto::kSHA256Length, static_cast<char>(i)), |
| retirement_time); |
| } |
| std::sort(std::begin(disqualified_logs), std::end(disqualified_logs)); |
| |
| FillOperatorHistoryWithDiverseOperators(scts, &log_operator_history); |
| |
| policy_enforcer_->UpdateCTLogList(base::Time::Now(), disqualified_logs, |
| operated_by_google_logs, |
| log_operator_history); |
| |
| // SCTs should not comply since retirement date is in the past. |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_ENOUGH_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(All, |
| ChromeCTPolicyEnforcerTestBothPolicies, |
| testing::Bool()); |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, 2022PolicyNotInEffectBeforeTargetDate) { |
| // Old policy should enforce one Google log requirement. |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 2, std::vector<std::string>(), true, &scts); |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| for (auto sct : scts) { |
| // Set timestamp to 1 day before new policy comes in effect. |
| EXPECT_TRUE(base::Time::FromUTCExploded({2022, 4, 0, 14, 0, 0, 0, 0}, |
| &sct->timestamp)); |
| } |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, 2022PolicyInEffectAfterTargetDate) { |
| // New policy should allow SCTs from all non-Google operators to comply as |
| // long as diversity requirement is fulfilled. |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 2, std::vector<std::string>(), true, &scts); |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| for (auto sct : scts) { |
| // Set timestamp to the day new policy comes in effect. |
| EXPECT_TRUE(base::Time::FromUTCExploded({2022, 4, 0, 15, 0, 0, 0, 0}, |
| &sct->timestamp)); |
| } |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, UpdatedSCTRequirements) { |
| std::unique_ptr<crypto::RSAPrivateKey> private_key( |
| crypto::RSAPrivateKey::Create(1024)); |
| ASSERT_TRUE(private_key); |
| |
| // Test multiple validity periods |
| base::Time time_2015_3_0_25_11_25_0_0 = |
| CreateTime({2015, 3, 0, 25, 11, 25, 0, 0}); |
| |
| base::Time time_2015_9_0_20_11_25_0_0 = |
| CreateTime({2015, 9, 0, 20, 11, 25, 0, 0}); |
| |
| base::Time time_2015_9_0_21_11_25_0_0 = |
| CreateTime({2015, 9, 0, 21, 11, 25, 0, 0}); |
| |
| base::Time time_2015_9_0_21_11_25_1_0 = |
| CreateTime({2015, 9, 0, 21, 11, 25, 1, 0}); |
| |
| base::Time time_2016_3_0_25_11_25_0_0 = |
| CreateTime({2016, 3, 0, 25, 11, 25, 0, 0}); |
| |
| const struct TestData { |
| base::Time validity_start; |
| base::Time validity_end; |
| size_t scts_required; |
| } kTestData[] = {{// Cert valid for -12 months (nonsensical), needs 2 SCTs. |
| time_2016_3_0_25_11_25_0_0, time_2015_3_0_25_11_25_0_0, 2}, |
| {// Cert valid for 179 days, needs 2 SCTs. |
| time_2015_3_0_25_11_25_0_0, time_2015_9_0_20_11_25_0_0, 2}, |
| {// Cert valid for exactly 180 days, needs only 2 SCTs. |
| time_2015_3_0_25_11_25_0_0, time_2015_9_0_21_11_25_0_0, 2}, |
| {// Cert valid for barely over 180 days, needs 3 SCTs. |
| time_2015_3_0_25_11_25_0_0, time_2015_9_0_21_11_25_1_0, 3}, |
| {// Cert valid for over 180 days, needs 3 SCTs. |
| time_2015_3_0_25_11_25_0_0, time_2016_3_0_25_11_25_0_0, 3}}; |
| |
| for (size_t i = 0; i < std::size(kTestData); ++i) { |
| SCOPED_TRACE(i); |
| const base::Time& validity_start = kTestData[i].validity_start; |
| const base::Time& validity_end = kTestData[i].validity_end; |
| size_t scts_required = kTestData[i].scts_required; |
| |
| // Create a self-signed certificate with exactly the validity period. |
| std::string cert_data; |
| ASSERT_TRUE(net::x509_util::CreateSelfSignedCert( |
| private_key->key(), net::x509_util::DIGEST_SHA256, "CN=test", |
| i * 10 + scts_required, validity_start, validity_end, {}, &cert_data)); |
| scoped_refptr<X509Certificate> cert(X509Certificate::CreateFromBytes( |
| base::as_bytes(base::make_span(cert_data)))); |
| ASSERT_TRUE(cert); |
| |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| for (size_t j = 0; j <= scts_required; ++j) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_EMBEDDED, j, |
| std::vector<std::string>(), true, &scts); |
| // Add different operators to the logs so the SCTs comply with operator |
| // diversity. |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| CTPolicyCompliance expected; |
| if (j == scts_required) { |
| // If the scts provided are as many as are required, the cert should be |
| // declared as compliant. |
| expected = CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS; |
| } else if (j == 1) { |
| // If a single SCT is provided, it should trip the diversity check. |
| expected = CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS; |
| } else { |
| // In any other case, the 'not enough' check should trip. |
| expected = CTPolicyCompliance::CT_POLICY_NOT_ENOUGH_SCTS; |
| } |
| EXPECT_EQ(expected, policy_enforcer_->CheckCompliance(cert.get(), scts, |
| NetLogWithSource())) |
| << " for: " << (validity_end - validity_start).InDays() << " and " |
| << scts_required << " scts=" << scts.size() << " j=" << j; |
| } |
| } |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, |
| DoesNotConformToCTPolicyAllLogsSameOperator) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 2, std::vector<std::string>(), true, &scts); |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| for (auto sct : scts) { |
| OperatorHistoryEntry entry; |
| entry.current_operator_ = "Operator"; |
| operator_history[sct->log_id] = entry; |
| } |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, ConformsToCTPolicyDifferentOperators) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 2, std::vector<std::string>(), true, &scts); |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, ConformsToPolicyDueToOperatorSwitch) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 2, std::vector<std::string>(), true, &scts); |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| // Set all logs to the same operator. |
| for (auto sct : scts) { |
| OperatorHistoryEntry entry; |
| entry.current_operator_ = "Same Operator"; |
| operator_history[sct->log_id] = entry; |
| } |
| // Set the previous operator of one of the logs to a different one, with an |
| // end time after the SCT timestamp. |
| operator_history[scts[1]->log_id].previous_operators_.emplace_back( |
| "Different Operator", scts[1]->timestamp + base::Seconds(1)); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_COMPLIES_VIA_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, DoesNotConformToPolicyDueToOperatorSwitch) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 2, std::vector<std::string>(), true, &scts); |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| // Set logs to different operators |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| |
| // Set the previous operator of one of the logs to the same as the other log, |
| // with an end time after the SCT timestamp. |
| operator_history[scts[1]->log_id].previous_operators_.emplace_back( |
| "Operator 0", scts[1]->timestamp + base::Seconds(1)); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, MultipleOperatorSwitches) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 2, std::vector<std::string>(), true, &scts); |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| // Set logs to different operators |
| FillOperatorHistoryWithDiverseOperators(scts, &operator_history); |
| // Set multiple previous operators, the first should be ignored since it |
| // stopped operating before the SCT timestamp. |
| operator_history[scts[1]->log_id].previous_operators_.emplace_back( |
| "Different Operator", scts[1]->timestamp - base::Seconds(1)); |
| operator_history[scts[1]->log_id].previous_operators_.emplace_back( |
| "Operator 0", scts[1]->timestamp + base::Seconds(1)); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| TEST_F(ChromeCTPolicyEnforcerTest, MultipleOperatorSwitchesBeforeSCTTimestamp) { |
| SCTList scts; |
| FillListWithSCTsOfOrigin(SignedCertificateTimestamp::SCT_FROM_TLS_EXTENSION, |
| 2, std::vector<std::string>(), true, &scts); |
| std::map<std::string, OperatorHistoryEntry> operator_history; |
| // Set all logs to the same operator. |
| for (auto sct : scts) { |
| OperatorHistoryEntry entry; |
| entry.current_operator_ = "Same Operator"; |
| operator_history[sct->log_id] = entry; |
| } |
| // Set multiple previous operators, all of them should be ignored since they |
| // all stopped operating before the SCT timestamp. |
| operator_history[scts[1]->log_id].previous_operators_.emplace_back( |
| "Different Operator", scts[1]->timestamp - base::Seconds(2)); |
| operator_history[scts[1]->log_id].previous_operators_.emplace_back( |
| "Yet Another Different Operator", scts[1]->timestamp - base::Seconds(1)); |
| policy_enforcer_->SetOperatorHistoryForTesting(operator_history); |
| |
| EXPECT_EQ(CTPolicyCompliance::CT_POLICY_NOT_DIVERSE_SCTS, |
| policy_enforcer_->CheckCompliance(chain_.get(), scts, |
| NetLogWithSource())); |
| } |
| |
| } // namespace certificate_transparency |
