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cast_crl_unittest.cc
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cast_crl_unittest.cc
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// Copyright 2016 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 "base/time/time.h"
#include "components/cast_certificate/cast_cert_validator.h"
#include "components/cast_certificate/cast_cert_validator_test_helpers.h"
#include "components/cast_certificate/cast_crl.h"
#include "components/cast_certificate/proto/test_suite.pb.h"
#include "net/cert/internal/cert_errors.h"
#include "net/cert/internal/trust_store_in_memory.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cast_certificate {
namespace {
// Indicates the expected result of test step's verification.
enum TestStepResult {
RESULT_SUCCESS,
RESULT_FAIL,
};
// Verifies that the provided certificate chain is valid at the specified time
// and chains up to a trust anchor.
bool TestVerifyCertificate(TestStepResult expected_result,
const std::vector<std::string>& certificate_chain,
const base::Time& time,
net::TrustStore* cast_trust_store) {
std::unique_ptr<CertVerificationContext> context;
CastDeviceCertPolicy policy;
int result = VerifyDeviceCertUsingCustomTrustStore(
certificate_chain, time, &context, &policy, nullptr,
CRLPolicy::CRL_OPTIONAL, cast_trust_store);
if (expected_result != RESULT_SUCCESS) {
EXPECT_FALSE(result);
return !result;
}
EXPECT_TRUE(result);
return result;
}
// Verifies that the provided Cast CRL is signed by a trusted issuer
// and that the CRL can be parsed successfully.
// The validity of the CRL is also checked at the specified time.
bool TestVerifyCRL(TestStepResult expected_result,
const std::string& crl_bundle,
const base::Time& time,
net::TrustStore* crl_trust_store) {
std::unique_ptr<CastCRL> crl =
ParseAndVerifyCRLUsingCustomTrustStore(crl_bundle, time, crl_trust_store);
if (expected_result != RESULT_SUCCESS) {
EXPECT_EQ(crl, nullptr);
return crl == nullptr;
}
EXPECT_NE(crl, nullptr);
return crl != nullptr;
}
// Verifies that the certificate chain provided is not revoked according to
// the provided Cast CRL at |cert_time|.
// The provided CRL is verified at |crl_time|.
// If |crl_required| is set, then a valid Cast CRL must be provided.
// Otherwise, a missing CRL is be ignored.
bool TestVerifyRevocation(TestStepResult expected_result,
const std::vector<std::string>& certificate_chain,
const std::string& crl_bundle,
const base::Time& crl_time,
const base::Time& cert_time,
bool crl_required,
net::TrustStore* cast_trust_store,
net::TrustStore* crl_trust_store) {
std::unique_ptr<CastCRL> crl;
if (!crl_bundle.empty()) {
crl = ParseAndVerifyCRLUsingCustomTrustStore(crl_bundle, crl_time,
crl_trust_store);
EXPECT_NE(crl.get(), nullptr);
}
std::unique_ptr<CertVerificationContext> context;
CastDeviceCertPolicy policy;
CRLPolicy crl_policy = CRLPolicy::CRL_REQUIRED;
if (!crl_required)
crl_policy = CRLPolicy::CRL_OPTIONAL;
int result = VerifyDeviceCertUsingCustomTrustStore(
certificate_chain, cert_time, &context, &policy, crl.get(), crl_policy,
cast_trust_store);
if (expected_result != RESULT_SUCCESS) {
EXPECT_FALSE(result);
return !result;
}
EXPECT_TRUE(result);
return result;
}
// Runs a single test case.
bool RunTest(const DeviceCertTest& test_case) {
std::unique_ptr<net::TrustStoreInMemory> crl_trust_store;
std::unique_ptr<net::TrustStoreInMemory> cast_trust_store;
if (test_case.use_test_trust_anchors()) {
crl_trust_store = testing::CreateTrustStoreFromFile(
"certificates/cast_crl_test_root_ca.pem");
cast_trust_store =
testing::CreateTrustStoreFromFile("certificates/cast_test_root_ca.pem");
EXPECT_TRUE(crl_trust_store.get());
EXPECT_TRUE(cast_trust_store.get());
}
std::vector<std::string> certificate_chain;
for (auto const& cert : test_case.der_cert_path()) {
certificate_chain.push_back(cert);
}
base::Time cert_verification_time = testing::ConvertUnixTimestampSeconds(
test_case.cert_verification_time_seconds());
uint64_t crl_verify_time = test_case.crl_verification_time_seconds();
base::Time crl_verification_time =
testing::ConvertUnixTimestampSeconds(crl_verify_time);
if (crl_verify_time == 0)
crl_verification_time = cert_verification_time;
std::string crl_bundle = test_case.crl_bundle();
switch (test_case.expected_result()) {
case PATH_VERIFICATION_FAILED:
return TestVerifyCertificate(RESULT_FAIL, certificate_chain,
cert_verification_time,
cast_trust_store.get());
case CRL_VERIFICATION_FAILED:
return TestVerifyCRL(RESULT_FAIL, crl_bundle, crl_verification_time,
crl_trust_store.get());
case REVOCATION_CHECK_FAILED_WITHOUT_CRL:
return TestVerifyCertificate(RESULT_SUCCESS, certificate_chain,
cert_verification_time,
cast_trust_store.get()) &&
TestVerifyCRL(RESULT_FAIL, crl_bundle, crl_verification_time,
crl_trust_store.get()) &&
TestVerifyRevocation(RESULT_FAIL, certificate_chain, crl_bundle,
crl_verification_time, cert_verification_time,
true, cast_trust_store.get(),
crl_trust_store.get());
case CRL_EXPIRED_AFTER_INITIAL_VERIFICATION:
// Fall-through intended.
case REVOCATION_CHECK_FAILED:
return TestVerifyCertificate(RESULT_SUCCESS, certificate_chain,
cert_verification_time,
cast_trust_store.get()) &&
TestVerifyCRL(RESULT_SUCCESS, crl_bundle, crl_verification_time,
crl_trust_store.get()) &&
TestVerifyRevocation(RESULT_FAIL, certificate_chain, crl_bundle,
crl_verification_time, cert_verification_time,
false, cast_trust_store.get(),
crl_trust_store.get());
case SUCCESS:
return (crl_bundle.empty() ||
TestVerifyCRL(RESULT_SUCCESS, crl_bundle, crl_verification_time,
crl_trust_store.get())) &&
TestVerifyCertificate(RESULT_SUCCESS, certificate_chain,
cert_verification_time,
cast_trust_store.get()) &&
TestVerifyRevocation(RESULT_SUCCESS, certificate_chain, crl_bundle,
crl_verification_time, cert_verification_time,
!crl_bundle.empty(), cast_trust_store.get(),
crl_trust_store.get());
case UNSPECIFIED:
return false;
}
return false;
}
// Parses the provided test suite provided in wire-format proto.
// Each test contains the inputs and the expected output.
// To see the description of the test, execute the test.
// These tests are generated by a test generator in google3.
void RunTestSuite(const std::string& test_suite_file_name) {
std::string testsuite_raw =
cast_certificate::testing::ReadTestFileToString(test_suite_file_name);
DeviceCertTestSuite test_suite;
EXPECT_TRUE(test_suite.ParseFromString(testsuite_raw));
uint16_t success = 0;
uint16_t failed = 0;
std::vector<std::string> failed_tests;
for (auto const& test_case : test_suite.tests()) {
LOG(INFO) << "[ RUN ] " << test_case.description();
bool result = RunTest(test_case);
EXPECT_TRUE(result);
if (!result) {
LOG(INFO) << "[ FAILED ] " << test_case.description();
++failed;
failed_tests.push_back(test_case.description());
} else {
LOG(INFO) << "[ PASSED ] " << test_case.description();
++success;
}
}
LOG(INFO) << "[ PASSED ] " << success << " test(s).";
if (failed) {
LOG(INFO) << "[ FAILED ] " << failed << " test(s), listed below:";
for (const auto& failed_test : failed_tests) {
LOG(INFO) << "[ FAILED ] " << failed_test;
}
}
}
TEST(CastCertificateTest, TestSuite1) {
RunTestSuite("testsuite/testsuite1.pb");
}
} // namespace
} // namespace cast_certificate