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/* -*- 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
*/
/* Copyright 2013 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
*
*
* 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"
#include "mozpkix/test/pkixtestutil.h"
using namespace mozilla::pkix;
using namespace mozilla::pkix::test;
// Creates a self-signed certificate with the given extension.
static ByteString
CreateCertWithExtensions(const char* subjectCN,
const ByteString* extensions)
{
static long serialNumberValue = 0;
++serialNumberValue;
ByteString serialNumber(CreateEncodedSerialNumber(serialNumberValue));
EXPECT_FALSE(ENCODING_FAILED(serialNumber));
ByteString issuerDER(CNToDERName(subjectCN));
EXPECT_FALSE(ENCODING_FAILED(issuerDER));
ByteString subjectDER(CNToDERName(subjectCN));
EXPECT_FALSE(ENCODING_FAILED(subjectDER));
ScopedTestKeyPair subjectKey(CloneReusedKeyPair());
return CreateEncodedCertificate(v3, sha256WithRSAEncryption(),
serialNumber, issuerDER,
oneDayBeforeNow, oneDayAfterNow,
subjectDER, *subjectKey, extensions,
*subjectKey,
sha256WithRSAEncryption());
}
// Creates a self-signed certificate with the given extension.
static ByteString
CreateCertWithOneExtension(const char* subjectStr, const ByteString& extension)
{
const ByteString extensions[] = { extension, ByteString() };
return CreateCertWithExtensions(subjectStr, extensions);
}
class TrustEverythingTrustDomain final : public DefaultCryptoTrustDomain
{
private:
Result GetCertTrust(EndEntityOrCA, const CertPolicyId&, Input,
/*out*/ TrustLevel& trustLevel) override
{
trustLevel = TrustLevel::TrustAnchor;
return Success;
}
Result CheckRevocation(EndEntityOrCA, const CertID&, Time, Duration,
/*optional*/ const Input*, /*optional*/ const Input*,
/*optional*/ const Input*)
override
{
return Success;
}
Result IsChainValid(const DERArray&, Time, const CertPolicyId&) override
{
return Success;
}
};
// python DottedOIDToCode.py --tlv unknownExtensionOID 1.3.6.1.4.1.13769.666.666.666.1.500.9.3
static const uint8_t tlv_unknownExtensionOID[] = {
0x06, 0x12, 0x2b, 0x06, 0x01, 0x04, 0x01, 0xeb, 0x49, 0x85, 0x1a, 0x85, 0x1a,
0x85, 0x1a, 0x01, 0x83, 0x74, 0x09, 0x03
};
// python DottedOIDToCode.py --tlv id-pe-authorityInformationAccess 1.3.6.1.5.5.7.1.1
static const uint8_t tlv_id_pe_authorityInformationAccess[] = {
0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x01, 0x01
};
// python DottedOIDToCode.py --tlv wrongExtensionOID 1.3.6.6.1.5.5.7.1.1
// (there is an extra "6" that shouldn't be in this OID)
static const uint8_t tlv_wrongExtensionOID[] = {
0x06, 0x09, 0x2b, 0x06, 0x06, 0x01, 0x05, 0x05, 0x07, 0x01, 0x01
};
// python DottedOIDToCode.py --tlv id-ce-unknown 2.5.29.55
// (this is a made-up OID for testing "id-ce"-prefixed OIDs that mozilla::pkix
// doesn't handle)
static const uint8_t tlv_id_ce_unknown[] = {
0x06, 0x03, 0x55, 0x1d, 0x37
};
// python DottedOIDToCode.py --tlv id-ce-inhibitAnyPolicy 2.5.29.54
static const uint8_t tlv_id_ce_inhibitAnyPolicy[] = {
0x06, 0x03, 0x55, 0x1d, 0x36
};
// python DottedOIDToCode.py --tlv id-pkix-ocsp-nocheck 1.3.6.1.5.5.7.48.1.5
static const uint8_t tlv_id_pkix_ocsp_nocheck[] = {
0x06, 0x09, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x30, 0x01, 0x05
};
struct ExtensionTestcase
{
ByteString extension;
Result expectedResult;
};
::std::ostream& operator<<(::std::ostream& os, const ExtensionTestcase&)
{
}
static const ExtensionTestcase EXTENSION_TESTCASES[] =
{
// Tests that a non-critical extension not in the id-ce or id-pe arcs (which
// is thus unknown to us) verifies successfully even if empty (extensions we
// know about aren't normally allowed to be empty).
{ TLV(der::SEQUENCE,
BytesToByteString(tlv_unknownExtensionOID) +
TLV(der::OCTET_STRING, ByteString())),
Success
},
// Tests that a critical extension not in the id-ce or id-pe arcs (which is
// thus unknown to us) is detected and that verification fails with the
// appropriate error.
{ TLV(der::SEQUENCE,
BytesToByteString(tlv_unknownExtensionOID) +
Boolean(true) +
TLV(der::OCTET_STRING, ByteString())),
Result::ERROR_UNKNOWN_CRITICAL_EXTENSION
},
// Tests that a id-pe-authorityInformationAccess critical extension
// is detected and that verification succeeds.
// XXX: According to RFC 5280 an AIA that consists of an empty sequence is
// not legal, but we accept it and that is not what we're testing here.
{ TLV(der::SEQUENCE,
BytesToByteString(tlv_id_pe_authorityInformationAccess) +
Boolean(true) +
TLV(der::OCTET_STRING, TLV(der::SEQUENCE, ByteString()))),
Success
},
// Tests that an incorrect OID for id-pe-authorityInformationAccess
// (when marked critical) is detected and that verification fails.
// id-pe-authorityInformationAccess.)
{ TLV(der::SEQUENCE,
BytesToByteString(tlv_wrongExtensionOID) +
Boolean(true) +
TLV(der::OCTET_STRING, ByteString())),
Result::ERROR_UNKNOWN_CRITICAL_EXTENSION
},
// We know about some id-ce extensions (OID arc 2.5.29), but not all of them.
// Tests that an unknown id-ce extension is detected and that verification
// fails.
{ TLV(der::SEQUENCE,
BytesToByteString(tlv_id_ce_unknown) +
Boolean(true) +
TLV(der::OCTET_STRING, ByteString())),
Result::ERROR_UNKNOWN_CRITICAL_EXTENSION
},
// Tests that a certificate with a known critical id-ce extension (in this
// case, OID 2.5.29.54, which is id-ce-inhibitAnyPolicy), verifies
// successfully.
{ TLV(der::SEQUENCE,
BytesToByteString(tlv_id_ce_inhibitAnyPolicy) +
Boolean(true) +
TLV(der::OCTET_STRING, Integer(0))),
Success
},
// Tests that a certificate with the id-pkix-ocsp-nocheck extension (marked
// critical) verifies successfully.
// RFC 6960:
// ext-ocsp-nocheck EXTENSION ::= { SYNTAX NULL IDENTIFIED
// BY id-pkix-ocsp-nocheck }
{ TLV(der::SEQUENCE,
BytesToByteString(tlv_id_pkix_ocsp_nocheck) +
Boolean(true) +
TLV(der::OCTET_STRING, TLV(der::NULLTag, ByteString()))),
Success
},
// Tests that a certificate with another representation of the
// id-pkix-ocsp-nocheck extension (marked critical) verifies successfully.
// some code creates certificates where value of the extension is
// an empty OCTET STRING.
{ TLV(der::SEQUENCE,
BytesToByteString(tlv_id_pkix_ocsp_nocheck) +
Boolean(true) +
TLV(der::OCTET_STRING, ByteString())),
Success
},
};
class pkixcert_extension
: public ::testing::Test
, public ::testing::WithParamInterface<ExtensionTestcase>
{
protected:
static TrustEverythingTrustDomain trustDomain;
};
/*static*/ TrustEverythingTrustDomain pkixcert_extension::trustDomain;
TEST_P(pkixcert_extension, ExtensionHandledProperly)
{
const ExtensionTestcase& testcase(GetParam());
const char* cn = "Cert Extension Test";
ByteString cert(CreateCertWithOneExtension(cn, testcase.extension));
ASSERT_FALSE(ENCODING_FAILED(cert));
Input certInput;
ASSERT_EQ(Success, certInput.Init(cert.data(), cert.length()));
ASSERT_EQ(testcase.expectedResult,
BuildCertChain(trustDomain, certInput, Now(),
EndEntityOrCA::MustBeEndEntity,
KeyUsage::noParticularKeyUsageRequired,
KeyPurposeId::anyExtendedKeyUsage,
CertPolicyId::anyPolicy,
nullptr/*stapledOCSPResponse*/));
}
INSTANTIATE_TEST_SUITE_P(pkixcert_extension,
pkixcert_extension,
testing::ValuesIn(EXTENSION_TESTCASES));
// Two subjectAltNames must result in an error.
TEST_F(pkixcert_extension, DuplicateSubjectAltName)
{
// python DottedOIDToCode.py --tlv id-ce-subjectAltName 2.5.29.17
static const uint8_t tlv_id_ce_subjectAltName[] = {
0x06, 0x03, 0x55, 0x1d, 0x11
};
ByteString subjectAltName(
TLV(der::SEQUENCE,
BytesToByteString(tlv_id_ce_subjectAltName) +
TLV(der::OCTET_STRING, TLV(der::SEQUENCE, DNSName("example.com")))));
static const ByteString extensions[] = { subjectAltName, subjectAltName,
ByteString() };
static const char* certCN = "Cert With Duplicate subjectAltName";
ByteString cert(CreateCertWithExtensions(certCN, extensions));
ASSERT_FALSE(ENCODING_FAILED(cert));
Input certInput;
ASSERT_EQ(Success, certInput.Init(cert.data(), cert.length()));
ASSERT_EQ(Result::ERROR_EXTENSION_VALUE_INVALID,
BuildCertChain(trustDomain, certInput, Now(),
EndEntityOrCA::MustBeEndEntity,
KeyUsage::noParticularKeyUsageRequired,
KeyPurposeId::anyExtendedKeyUsage,
CertPolicyId::anyPolicy,
nullptr/*stapledOCSPResponse*/));
}