/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This code is made available to you under your choice of the following sets * of licensing terms: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ /* Copyright 2014 Mozilla Contributors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "pkixgtest.h" #include "mozpkix/pkixder.h" using namespace mozilla::pkix; using namespace mozilla::pkix::test; const uint16_t END_ENTITY_MAX_LIFETIME_IN_DAYS = 10; // Note that CheckRevocation is never called for OCSP signing certificates. class OCSPTestTrustDomain : public DefaultCryptoTrustDomain { public: OCSPTestTrustDomain() { } Result GetCertTrust(EndEntityOrCA endEntityOrCA, const CertPolicyId&, Input, /*out*/ TrustLevel& trustLevel) /*non-final*/ override { EXPECT_EQ(endEntityOrCA, EndEntityOrCA::MustBeEndEntity); trustLevel = TrustLevel::InheritsTrust; return Success; } virtual void NoteAuxiliaryExtension(AuxiliaryExtension extension, Input extensionData) override { if (extension == AuxiliaryExtension::SCTListFromOCSPResponse) { signedCertificateTimestamps = InputToByteString(extensionData); } else { // We do not currently expect to receive any other extension here. ADD_FAILURE(); } } ByteString signedCertificateTimestamps; }; namespace { char const* const rootName = "Test CA 1"; } // namespace class pkixocsp_VerifyEncodedResponse : public ::testing::Test { public: static void SetUpTestCase() { rootKeyPair.reset(GenerateKeyPair()); if (!rootKeyPair) { abort(); } } void SetUp() { rootNameDER = CNToDERName(rootName); if (ENCODING_FAILED(rootNameDER)) { abort(); } Input rootNameDERInput; if (rootNameDERInput.Init(rootNameDER.data(), rootNameDER.length()) != Success) { abort(); } serialNumberDER = CreateEncodedSerialNumber(static_cast(++rootIssuedCount)); if (ENCODING_FAILED(serialNumberDER)) { abort(); } Input serialNumberDERInput; if (serialNumberDERInput.Init(serialNumberDER.data(), serialNumberDER.length()) != Success) { abort(); } Input rootSPKIDER; if (rootSPKIDER.Init(rootKeyPair->subjectPublicKeyInfo.data(), rootKeyPair->subjectPublicKeyInfo.length()) != Success) { abort(); } endEntityCertID.reset(new (std::nothrow) CertID(rootNameDERInput, rootSPKIDER, serialNumberDERInput)); if (!endEntityCertID) { abort(); } } static ScopedTestKeyPair rootKeyPair; static uint32_t rootIssuedCount; OCSPTestTrustDomain trustDomain; // endEntityCertID references rootKeyPair, rootNameDER, and serialNumberDER. ByteString rootNameDER; ByteString serialNumberDER; // endEntityCertID references rootKeyPair, rootNameDER, and serialNumberDER. ScopedCertID endEntityCertID; }; /*static*/ ScopedTestKeyPair pkixocsp_VerifyEncodedResponse::rootKeyPair; /*static*/ uint32_t pkixocsp_VerifyEncodedResponse::rootIssuedCount = 0; /////////////////////////////////////////////////////////////////////////////// // responseStatus struct WithoutResponseBytes { uint8_t responseStatus; Result expectedError; }; static const WithoutResponseBytes WITHOUT_RESPONSEBYTES[] = { { OCSPResponseContext::successful, Result::ERROR_OCSP_MALFORMED_RESPONSE }, { OCSPResponseContext::malformedRequest, Result::ERROR_OCSP_MALFORMED_REQUEST }, { OCSPResponseContext::internalError, Result::ERROR_OCSP_SERVER_ERROR }, { OCSPResponseContext::tryLater, Result::ERROR_OCSP_TRY_SERVER_LATER }, { 4/*unused*/, Result::ERROR_OCSP_UNKNOWN_RESPONSE_STATUS }, { OCSPResponseContext::sigRequired, Result::ERROR_OCSP_REQUEST_NEEDS_SIG }, { OCSPResponseContext::unauthorized, Result::ERROR_OCSP_UNAUTHORIZED_REQUEST }, { OCSPResponseContext::unauthorized + 1, Result::ERROR_OCSP_UNKNOWN_RESPONSE_STATUS }, }; class pkixocsp_VerifyEncodedResponse_WithoutResponseBytes : public pkixocsp_VerifyEncodedResponse , public ::testing::WithParamInterface { protected: ByteString CreateEncodedOCSPErrorResponse(uint8_t status) { static const Input EMPTY; OCSPResponseContext context(CertID(EMPTY, EMPTY, EMPTY), oneDayBeforeNow); context.responseStatus = status; context.skipResponseBytes = true; return CreateEncodedOCSPResponse(context); } }; TEST_P(pkixocsp_VerifyEncodedResponse_WithoutResponseBytes, CorrectErrorCode) { ByteString responseString(CreateEncodedOCSPErrorResponse(GetParam().responseStatus)); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(GetParam().expectedError, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); } INSTANTIATE_TEST_CASE_P(pkixocsp_VerifyEncodedResponse_WithoutResponseBytes, pkixocsp_VerifyEncodedResponse_WithoutResponseBytes, testing::ValuesIn(WITHOUT_RESPONSEBYTES)); /////////////////////////////////////////////////////////////////////////////// // "successful" responses namespace { // Alias for nullptr to aid readability in the code below. static const char* byKey = nullptr; } // namespace class pkixocsp_VerifyEncodedResponse_successful : public pkixocsp_VerifyEncodedResponse { public: void SetUp() { pkixocsp_VerifyEncodedResponse::SetUp(); } static void SetUpTestCase() { pkixocsp_VerifyEncodedResponse::SetUpTestCase(); } ByteString CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::CertStatus certStatus, const CertID& certID, /*optional*/ const char* signerName, const TestKeyPair& signerKeyPair, time_t producedAt, time_t thisUpdate, /*optional*/ const time_t* nextUpdate, const TestSignatureAlgorithm& signatureAlgorithm, /*optional*/ const ByteString* certs = nullptr, /*optional*/ OCSPResponseExtension* singleExtensions = nullptr, /*optional*/ OCSPResponseExtension* responseExtensions = nullptr) { OCSPResponseContext context(certID, producedAt); if (signerName) { context.signerNameDER = CNToDERName(signerName); EXPECT_FALSE(ENCODING_FAILED(context.signerNameDER)); } context.signerKeyPair.reset(signerKeyPair.Clone()); EXPECT_TRUE(context.signerKeyPair.get()); context.responseStatus = OCSPResponseContext::successful; context.producedAt = producedAt; context.signatureAlgorithm = signatureAlgorithm; context.certs = certs; context.singleExtensions = singleExtensions; context.responseExtensions = responseExtensions; context.certStatus = static_cast(certStatus); context.thisUpdate = thisUpdate; context.nextUpdate = nextUpdate ? *nextUpdate : 0; context.includeNextUpdate = nextUpdate != nullptr; return CreateEncodedOCSPResponse(context); } }; TEST_F(pkixocsp_VerifyEncodedResponse_successful, good_byKey) { ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, byKey, *rootKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption())); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Success, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_successful, good_byName) { ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, rootName, *rootKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption())); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Success, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_successful, good_byKey_without_nextUpdate) { ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, byKey, *rootKeyPair, oneDayBeforeNow, oneDayBeforeNow, nullptr, sha256WithRSAEncryption())); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Success, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_successful, revoked) { ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::revoked, *endEntityCertID, byKey, *rootKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption())); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_REVOKED_CERTIFICATE, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_successful, unknown) { ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::unknown, *endEntityCertID, byKey, *rootKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption())); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_UNKNOWN_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_successful, good_unsupportedSignatureAlgorithm) { ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, byKey, *rootKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, md5WithRSAEncryption())); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_CERT_SIGNATURE_ALGORITHM_DISABLED, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } // Added for bug 1079436. The output variable validThrough represents the // latest time for which VerifyEncodedOCSPResponse will succeed, which is // different from the nextUpdate time in the OCSP response due to the slop we // add for time comparisons to deal with clock skew. TEST_F(pkixocsp_VerifyEncodedResponse_successful, check_validThrough) { ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, byKey, *rootKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption())); Time validThrough(Time::uninitialized); { Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Success, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired, nullptr, &validThrough)); ASSERT_FALSE(expired); // The response was created to be valid until one day after now, so the // value we got for validThrough should be after that. Time oneDayAfterNowAsPKIXTime( TimeFromEpochInSeconds(static_cast(oneDayAfterNow))); ASSERT_TRUE(validThrough > oneDayAfterNowAsPKIXTime); } { Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; // Given validThrough from a previous verification, this response should be // valid through that time. ASSERT_EQ(Success, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, validThrough, END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } { Time noLongerValid(validThrough); ASSERT_EQ(Success, noLongerValid.AddSeconds(1)); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; // The verification time is now after when the response will be considered // valid. ASSERT_EQ(Result::ERROR_OCSP_OLD_RESPONSE, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, noLongerValid, END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_TRUE(expired); } } TEST_F(pkixocsp_VerifyEncodedResponse_successful, ct_extension) { // python DottedOIDToCode.py --tlv // id_ocsp_singleExtensionSctList 1.3.6.1.4.1.11129.2.4.5 static const uint8_t tlv_id_ocsp_singleExtensionSctList[] = { 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0xd6, 0x79, 0x02, 0x04, 0x05 }; static const uint8_t dummySctList[] = { 0x01, 0x02, 0x03, 0x04, 0x05 }; OCSPResponseExtension ctExtension; ctExtension.id = BytesToByteString(tlv_id_ocsp_singleExtensionSctList); // SignedCertificateTimestampList structure is encoded as an OCTET STRING // within the extension value (see RFC 6962 section 3.3). // pkix decodes it internally and returns the actual structure. ctExtension.value = TLV(der::OCTET_STRING, BytesToByteString(dummySctList)); ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, byKey, *rootKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption(), /*certs*/ nullptr, &ctExtension)); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Success, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); ASSERT_EQ(BytesToByteString(dummySctList), trustDomain.signedCertificateTimestamps); } /////////////////////////////////////////////////////////////////////////////// // indirect responses (signed by a delegated OCSP responder cert) class pkixocsp_VerifyEncodedResponse_DelegatedResponder : public pkixocsp_VerifyEncodedResponse_successful { protected: // certSubjectName should be unique for each call. This way, we avoid any // issues with NSS caching the certificates internally. For the same reason, // we generate a new keypair on each call. Either one of these should be // sufficient to avoid issues with the NSS cache, but we do both to be // cautious. // // signerName should be byKey to use the byKey ResponderID construction, or // another value (usually equal to certSubjectName) to use the byName // ResponderID construction. // // certSignatureAlgorithm specifies the signature algorithm that the // certificate will be signed with, not the OCSP response. // // If signerEKU is omitted, then the certificate will have the // id-kp-OCSPSigning EKU. If signerEKU is SEC_OID_UNKNOWN then it will not // have any EKU extension. Otherwise, the certificate will have the given // EKU. ByteString CreateEncodedIndirectOCSPSuccessfulResponse( const char* certSubjectName, OCSPResponseContext::CertStatus certStatus, const char* signerName, const TestSignatureAlgorithm& certSignatureAlgorithm, /*optional*/ const Input* signerEKUDER = &OCSPSigningEKUDER, /*optional, out*/ ByteString* signerDEROut = nullptr) { assert(certSubjectName); const ByteString extensions[] = { signerEKUDER ? CreateEncodedEKUExtension(*signerEKUDER, Critical::No) : ByteString(), ByteString() }; ScopedTestKeyPair signerKeyPair(GenerateKeyPair()); ByteString signerDER(CreateEncodedCertificate( ++rootIssuedCount, certSignatureAlgorithm, rootName, oneDayBeforeNow, oneDayAfterNow, certSubjectName, *signerKeyPair, signerEKUDER ? extensions : nullptr, *rootKeyPair)); EXPECT_FALSE(ENCODING_FAILED(signerDER)); if (signerDEROut) { *signerDEROut = signerDER; } ByteString signerNameDER; if (signerName) { signerNameDER = CNToDERName(signerName); EXPECT_FALSE(ENCODING_FAILED(signerNameDER)); } ByteString certs[] = { signerDER, ByteString() }; return CreateEncodedOCSPSuccessfulResponse(certStatus, *endEntityCertID, signerName, *signerKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption(), certs); } static ByteString CreateEncodedCertificate(uint32_t serialNumber, const TestSignatureAlgorithm& signatureAlg, const char* issuer, time_t notBefore, time_t notAfter, const char* subject, const TestKeyPair& subjectKeyPair, /*optional*/ const ByteString* extensions, const TestKeyPair& signerKeyPair) { ByteString serialNumberDER(CreateEncodedSerialNumber( static_cast(serialNumber))); if (ENCODING_FAILED(serialNumberDER)) { return ByteString(); } ByteString issuerDER(CNToDERName(issuer)); if (ENCODING_FAILED(issuerDER)) { return ByteString(); } ByteString subjectDER(CNToDERName(subject)); if (ENCODING_FAILED(subjectDER)) { return ByteString(); } return ::mozilla::pkix::test::CreateEncodedCertificate( v3, signatureAlg, serialNumberDER, issuerDER, notBefore, notAfter, subjectDER, subjectKeyPair, extensions, signerKeyPair, signatureAlg); } static const Input OCSPSigningEKUDER; }; /*static*/ const Input pkixocsp_VerifyEncodedResponse_DelegatedResponder:: OCSPSigningEKUDER(tlv_id_kp_OCSPSigning); TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_byKey) { ByteString responseString( CreateEncodedIndirectOCSPSuccessfulResponse( "good_indirect_byKey", OCSPResponseContext::good, byKey, sha256WithRSAEncryption())); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Success, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_byName) { ByteString responseString( CreateEncodedIndirectOCSPSuccessfulResponse( "good_indirect_byName", OCSPResponseContext::good, "good_indirect_byName", sha256WithRSAEncryption())); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Success, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_byKey_missing_signer) { ScopedTestKeyPair missingSignerKeyPair(GenerateKeyPair()); ASSERT_TRUE(missingSignerKeyPair.get()); ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, byKey, *missingSignerKeyPair, oneDayBeforeNow, oneDayBeforeNow, nullptr, sha256WithRSAEncryption())); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_byName_missing_signer) { ScopedTestKeyPair missingSignerKeyPair(GenerateKeyPair()); ASSERT_TRUE(missingSignerKeyPair.get()); ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, "missing", *missingSignerKeyPair, oneDayBeforeNow, oneDayBeforeNow, nullptr, sha256WithRSAEncryption())); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_expired) { static const char* signerName = "good_indirect_expired"; const ByteString extensions[] = { CreateEncodedEKUExtension(OCSPSigningEKUDER, Critical::No), ByteString() }; ScopedTestKeyPair signerKeyPair(GenerateKeyPair()); ByteString signerDER(CreateEncodedCertificate( ++rootIssuedCount, sha256WithRSAEncryption(), rootName, tenDaysBeforeNow, twoDaysBeforeNow, signerName, *signerKeyPair, extensions, *rootKeyPair)); ASSERT_FALSE(ENCODING_FAILED(signerDER)); ByteString certs[] = { signerDER, ByteString() }; ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, signerName, *signerKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption(), certs)); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); } TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_future) { static const char* signerName = "good_indirect_future"; const ByteString extensions[] = { CreateEncodedEKUExtension(OCSPSigningEKUDER, Critical::No), ByteString() }; ScopedTestKeyPair signerKeyPair(GenerateKeyPair()); ByteString signerDER(CreateEncodedCertificate( ++rootIssuedCount, sha256WithRSAEncryption(), rootName, twoDaysAfterNow, tenDaysAfterNow, signerName, *signerKeyPair, extensions, *rootKeyPair)); ASSERT_FALSE(ENCODING_FAILED(signerDER)); ByteString certs[] = { signerDER, ByteString() }; ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, signerName, *signerKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption(), certs)); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_no_eku) { ByteString responseString( CreateEncodedIndirectOCSPSuccessfulResponse( "good_indirect_wrong_eku", OCSPResponseContext::good, byKey, sha256WithRSAEncryption(), nullptr)); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } static const Input serverAuthEKUDER(tlv_id_kp_serverAuth); TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_indirect_wrong_eku) { ByteString responseString( CreateEncodedIndirectOCSPSuccessfulResponse( "good_indirect_wrong_eku", OCSPResponseContext::good, byKey, sha256WithRSAEncryption(), &serverAuthEKUDER)); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } // Test that signature of OCSP response signer cert is verified TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_tampered_eku) { ByteString tamperedResponse( CreateEncodedIndirectOCSPSuccessfulResponse( "good_indirect_tampered_eku", OCSPResponseContext::good, byKey, sha256WithRSAEncryption(), &serverAuthEKUDER)); ASSERT_EQ(Success, TamperOnce(tamperedResponse, ByteString(tlv_id_kp_serverAuth, sizeof(tlv_id_kp_serverAuth)), ByteString(tlv_id_kp_OCSPSigning, sizeof(tlv_id_kp_OCSPSigning)))); Input tamperedResponseInput; ASSERT_EQ(Success, tamperedResponseInput.Init(tamperedResponse.data(), tamperedResponse.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, tamperedResponseInput, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_unknown_issuer) { static const char* subCAName = "good_indirect_unknown_issuer sub-CA"; static const char* signerName = "good_indirect_unknown_issuer OCSP signer"; // unknown issuer ScopedTestKeyPair unknownKeyPair(GenerateKeyPair()); ASSERT_TRUE(unknownKeyPair.get()); // Delegated responder cert signed by unknown issuer const ByteString extensions[] = { CreateEncodedEKUExtension(OCSPSigningEKUDER, Critical::No), ByteString() }; ScopedTestKeyPair signerKeyPair(GenerateKeyPair()); ByteString signerDER(CreateEncodedCertificate( 1, sha256WithRSAEncryption(), subCAName, oneDayBeforeNow, oneDayAfterNow, signerName, *signerKeyPair, extensions, *unknownKeyPair)); ASSERT_FALSE(ENCODING_FAILED(signerDER)); // OCSP response signed by that delegated responder ByteString certs[] = { signerDER, ByteString() }; ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, signerName, *signerKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption(), certs)); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } // The CA that issued the OCSP responder cert is a sub-CA of the issuer of // the certificate that the OCSP response is for. That sub-CA cert is included // in the OCSP response before the OCSP responder cert. TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_indirect_subca_1_first) { static const char* subCAName = "good_indirect_subca_1_first sub-CA"; static const char* signerName = "good_indirect_subca_1_first OCSP signer"; static const long zero = 0; // sub-CA of root (root is the direct issuer of endEntity) const ByteString subCAExtensions[] = { CreateEncodedBasicConstraints(true, &zero, Critical::No), ByteString() }; ScopedTestKeyPair subCAKeyPair(GenerateKeyPair()); ByteString subCADER(CreateEncodedCertificate( ++rootIssuedCount, sha256WithRSAEncryption(), rootName, oneDayBeforeNow, oneDayAfterNow, subCAName, *subCAKeyPair, subCAExtensions, *rootKeyPair)); ASSERT_FALSE(ENCODING_FAILED(subCADER)); // Delegated responder cert signed by that sub-CA const ByteString extensions[] = { CreateEncodedEKUExtension(OCSPSigningEKUDER, Critical::No), ByteString(), }; ScopedTestKeyPair signerKeyPair(GenerateKeyPair()); ByteString signerDER(CreateEncodedCertificate( 1, sha256WithRSAEncryption(), subCAName, oneDayBeforeNow, oneDayAfterNow, signerName, *signerKeyPair, extensions, *subCAKeyPair)); ASSERT_FALSE(ENCODING_FAILED(signerDER)); // OCSP response signed by the delegated responder issued by the sub-CA // that is trying to impersonate the root. ByteString certs[] = { subCADER, signerDER, ByteString() }; ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, signerName, *signerKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption(), certs)); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } // The CA that issued the OCSP responder cert is a sub-CA of the issuer of // the certificate that the OCSP response is for. That sub-CA cert is included // in the OCSP response after the OCSP responder cert. TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_indirect_subca_1_second) { static const char* subCAName = "good_indirect_subca_1_second sub-CA"; static const char* signerName = "good_indirect_subca_1_second OCSP signer"; static const long zero = 0; // sub-CA of root (root is the direct issuer of endEntity) const ByteString subCAExtensions[] = { CreateEncodedBasicConstraints(true, &zero, Critical::No), ByteString() }; ScopedTestKeyPair subCAKeyPair(GenerateKeyPair()); ByteString subCADER(CreateEncodedCertificate(++rootIssuedCount, sha256WithRSAEncryption(), rootName, oneDayBeforeNow, oneDayAfterNow, subCAName, *subCAKeyPair, subCAExtensions, *rootKeyPair)); ASSERT_FALSE(ENCODING_FAILED(subCADER)); // Delegated responder cert signed by that sub-CA const ByteString extensions[] = { CreateEncodedEKUExtension(OCSPSigningEKUDER, Critical::No), ByteString() }; ScopedTestKeyPair signerKeyPair(GenerateKeyPair()); ByteString signerDER(CreateEncodedCertificate( 1, sha256WithRSAEncryption(), subCAName, oneDayBeforeNow, oneDayAfterNow, signerName, *signerKeyPair, extensions, *subCAKeyPair)); ASSERT_FALSE(ENCODING_FAILED(signerDER)); // OCSP response signed by the delegated responder issued by the sub-CA // that is trying to impersonate the root. ByteString certs[] = { signerDER, subCADER, ByteString() }; ByteString responseString( CreateEncodedOCSPSuccessfulResponse( OCSPResponseContext::good, *endEntityCertID, signerName, *signerKeyPair, oneDayBeforeNow, oneDayBeforeNow, &oneDayAfterNow, sha256WithRSAEncryption(), certs)); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_DelegatedResponder, good_unsupportedSignatureAlgorithmOnResponder) { // Note that the algorithm ID (md5WithRSAEncryption) identifies the signature // algorithm that will be used to sign the certificate that issues the OCSP // responses, not the responses themselves. ByteString responseString( CreateEncodedIndirectOCSPSuccessfulResponse( "good_indirect_unsupportedSignatureAlgorithm", OCSPResponseContext::good, byKey, md5WithRSAEncryption())); Input response; ASSERT_EQ(Success, response.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); } class pkixocsp_VerifyEncodedResponse_GetCertTrust : public pkixocsp_VerifyEncodedResponse_DelegatedResponder { public: void SetUp() { pkixocsp_VerifyEncodedResponse_DelegatedResponder::SetUp(); responseString = CreateEncodedIndirectOCSPSuccessfulResponse( "OCSPGetCertTrustTest Signer", OCSPResponseContext::good, byKey, sha256WithRSAEncryption(), &OCSPSigningEKUDER, &signerCertDER); if (ENCODING_FAILED(responseString)) { abort(); } if (response.Init(responseString.data(), responseString.length()) != Success) { abort(); } if (signerCertDER.length() == 0) { abort(); } } class TrustDomain final : public OCSPTestTrustDomain { public: TrustDomain() : certTrustLevel(TrustLevel::InheritsTrust) { } bool SetCertTrust(const ByteString& aCertDER, TrustLevel aCertTrustLevel) { this->certDER = aCertDER; this->certTrustLevel = aCertTrustLevel; return true; } private: Result GetCertTrust(EndEntityOrCA endEntityOrCA, const CertPolicyId&, Input candidateCert, /*out*/ TrustLevel& trustLevel) override { EXPECT_EQ(endEntityOrCA, EndEntityOrCA::MustBeEndEntity); EXPECT_FALSE(certDER.empty()); Input certDERInput; EXPECT_EQ(Success, certDERInput.Init(certDER.data(), certDER.length())); EXPECT_TRUE(InputsAreEqual(certDERInput, candidateCert)); trustLevel = certTrustLevel; return Success; } ByteString certDER; TrustLevel certTrustLevel; }; // trustDomain deliberately shadows the inherited field so that it isn't used // by accident. See bug 1339921. // Unfortunately GCC can't parse __has_warning("-Wshadow-field") even if it's // the latter part of a conjunction that would evaluate to false, so we have to // wrap it in a separate preprocessor conditional rather than using &&. #if defined(__clang__) #if __has_warning("-Wshadow-field") #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wshadow-field" #endif #endif TrustDomain trustDomain; #if defined(__clang__) #if __has_warning("-Wshadow-field") #pragma clang diagnostic pop #endif #endif ByteString signerCertDER; ByteString responseString; Input response; // references data in responseString }; TEST_F(pkixocsp_VerifyEncodedResponse_GetCertTrust, InheritTrust) { ASSERT_TRUE(trustDomain.SetCertTrust(signerCertDER, TrustLevel::InheritsTrust)); bool expired; ASSERT_EQ(Success, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_GetCertTrust, TrustAnchor) { ASSERT_TRUE(trustDomain.SetCertTrust(signerCertDER, TrustLevel::TrustAnchor)); bool expired; ASSERT_EQ(Success, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, response, expired)); ASSERT_FALSE(expired); } TEST_F(pkixocsp_VerifyEncodedResponse_GetCertTrust, ActivelyDistrusted) { ASSERT_TRUE(trustDomain.SetCertTrust(signerCertDER, TrustLevel::ActivelyDistrusted)); Input responseInput; ASSERT_EQ(Success, responseInput.Init(responseString.data(), responseString.length())); bool expired; ASSERT_EQ(Result::ERROR_OCSP_INVALID_SIGNING_CERT, VerifyEncodedOCSPResponse(trustDomain, *endEntityCertID, Now(), END_ENTITY_MAX_LIFETIME_IN_DAYS, responseInput, expired)); ASSERT_FALSE(expired); }