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gecko-dev/security/pkix/test/lib/pkixtestutil.h

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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
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
/* 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
*
* 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.
*/
#ifndef mozilla_pkix_test_pkixtestutils_h
#define mozilla_pkix_test_pkixtestutils_h
#include <ctime>
#include <stdint.h> // Some Mozilla-supported compilers lack <cstdint>
#include <string>
#include <cstring>
#include "pkix/pkixtypes.h"
#include "../../lib/ScopedPtr.h"
namespace mozilla { namespace pkix { namespace test {
typedef std::basic_string<uint8_t> ByteString;
inline bool ENCODING_FAILED(const ByteString& bs) { return bs.empty(); }
template <size_t L>
inline ByteString
BytesToByteString(const uint8_t (&bytes)[L])
{
return ByteString(bytes, L);
}
// XXX: Ideally, we should define this instead:
//
// template <typename T, std::size_t N>
// constexpr inline std::size_t
// ArrayLength(T (&)[N])
// {
// return N;
// }
//
// However, we don't because not all supported compilers support constexpr,
// and we need to calculate array lengths in static_assert sometimes.
//
// XXX: Evaluates its argument twice
#define MOZILLA_PKIX_ARRAY_LENGTH(x) (sizeof(x) / sizeof((x)[0]))
bool InputEqualsByteString(Input input, const ByteString& bs);
ByteString InputToByteString(Input input);
// python DottedOIDToCode.py --tlv id-kp-OCSPSigning 1.3.6.1.5.5.7.3.9
static const uint8_t tlv_id_kp_OCSPSigning[] = {
0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x09
};
// python DottedOIDToCode.py --tlv id-kp-serverAuth 1.3.6.1.5.5.7.3.1
static const uint8_t tlv_id_kp_serverAuth[] = {
0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x01
};
enum class TestDigestAlgorithmID
{
MD2,
MD5,
SHA1,
SHA224,
SHA256,
SHA384,
SHA512,
};
struct TestPublicKeyAlgorithm
{
explicit TestPublicKeyAlgorithm(const ByteString& algorithmIdentifier)
: algorithmIdentifier(algorithmIdentifier) { }
bool operator==(const TestPublicKeyAlgorithm& other) const
{
return algorithmIdentifier == other.algorithmIdentifier;
}
ByteString algorithmIdentifier;
};
ByteString DSS_P();
ByteString DSS_Q();
ByteString DSS_G();
TestPublicKeyAlgorithm DSS();
TestPublicKeyAlgorithm RSA_PKCS1();
struct TestSignatureAlgorithm
{
TestSignatureAlgorithm(const TestPublicKeyAlgorithm& publicKeyAlg,
TestDigestAlgorithmID digestAlg,
const ByteString& algorithmIdentifier,
bool accepted);
TestPublicKeyAlgorithm publicKeyAlg;
TestDigestAlgorithmID digestAlg;
ByteString algorithmIdentifier;
bool accepted;
};
TestSignatureAlgorithm md2WithRSAEncryption();
TestSignatureAlgorithm md5WithRSAEncryption();
TestSignatureAlgorithm sha1WithRSAEncryption();
TestSignatureAlgorithm sha256WithRSAEncryption();
// e.g. YMDHMS(2016, 12, 31, 1, 23, 45) => 2016-12-31:01:23:45 (GMT)
mozilla::pkix::Time YMDHMS(uint16_t year, uint16_t month, uint16_t day,
uint16_t hour, uint16_t minutes, uint16_t seconds);
ByteString TLV(uint8_t tag, size_t length, const ByteString& value);
inline ByteString
TLV(uint8_t tag, const ByteString& value)
{
return TLV(tag, value.length(), value);
}
// Although we can't enforce it without relying on Cuser-defined literals,
// which aren't supported by all of our compilers yet, you should only pass
// string literals as the last parameter to the following two functions.
template <size_t N>
inline ByteString
TLV(uint8_t tag, const char(&value)[N])
{
static_assert(N > 0, "cannot have string literal of size 0");
assert(value[N - 1] == 0);
return TLV(tag, ByteString(reinterpret_cast<const uint8_t*>(&value), N - 1));
}
template <size_t N>
inline ByteString
TLV(uint8_t tag, size_t length, const char(&value)[N])
{
static_assert(N > 0, "cannot have string literal of size 0");
assert(value[N - 1] == 0);
return TLV(tag, length,
ByteString(reinterpret_cast<const uint8_t*>(&value), N - 1));
}
ByteString Boolean(bool value);
ByteString Integer(long value);
ByteString CN(const ByteString&, uint8_t encodingTag = 0x0c /*UTF8String*/);
inline ByteString
CN(const char* value, uint8_t encodingTag = 0x0c /*UTF8String*/)
{
return CN(ByteString(reinterpret_cast<const uint8_t*>(value),
std::strlen(value)), encodingTag);
}
ByteString OU(const ByteString&, uint8_t encodingTag = 0x0c /*UTF8String*/);
inline ByteString
OU(const char* value, uint8_t encodingTag = 0x0c /*UTF8String*/)
{
return OU(ByteString(reinterpret_cast<const uint8_t*>(value),
std::strlen(value)), encodingTag);
}
ByteString emailAddress(const ByteString&);
inline ByteString
emailAddress(const char* value)
{
return emailAddress(ByteString(reinterpret_cast<const uint8_t*>(value),
std::strlen(value)));
}
// RelativeDistinguishedName ::=
// SET SIZE (1..MAX) OF AttributeTypeAndValue
//
ByteString RDN(const ByteString& avas);
// Name ::= CHOICE { -- only one possibility for now --
// rdnSequence RDNSequence }
//
// RDNSequence ::= SEQUENCE OF RelativeDistinguishedName
//
ByteString Name(const ByteString& rdns);
inline ByteString
CNToDERName(const ByteString& cn)
{
return Name(RDN(CN(cn)));
}
inline ByteString
CNToDERName(const char* cn)
{
return Name(RDN(CN(cn)));
}
// GeneralName ::= CHOICE {
// otherName [0] OtherName,
// rfc822Name [1] IA5String,
// dNSName [2] IA5String,
// x400Address [3] ORAddress,
// directoryName [4] Name,
// ediPartyName [5] EDIPartyName,
// uniformResourceIdentifier [6] IA5String,
// iPAddress [7] OCTET STRING,
// registeredID [8] OBJECT IDENTIFIER }
inline ByteString
RFC822Name(const ByteString& name)
{
// (2 << 6) means "context-specific", 1 is the GeneralName tag.
return TLV((2 << 6) | 1, name);
}
template <size_t L>
inline ByteString
RFC822Name(const char (&bytes)[L])
{
return RFC822Name(ByteString(reinterpret_cast<const uint8_t*>(&bytes),
L - 1));
}
inline ByteString
DNSName(const ByteString& name)
{
// (2 << 6) means "context-specific", 2 is the GeneralName tag.
return TLV((2 << 6) | 2, name);
}
template <size_t L>
inline ByteString
DNSName(const char (&bytes)[L])
{
return DNSName(ByteString(reinterpret_cast<const uint8_t*>(&bytes),
L - 1));
}
inline ByteString
DirectoryName(const ByteString& name)
{
// (2 << 6) means "context-specific", (1 << 5) means "constructed", and 4 is
// the DirectoryName tag.
return TLV((2 << 6) | (1 << 5) | 4, name);
}
inline ByteString
IPAddress()
{
// (2 << 6) means "context-specific", 7 is the GeneralName tag.
return TLV((2 << 6) | 7, ByteString());
}
template <size_t L>
inline ByteString
IPAddress(const uint8_t (&bytes)[L])
{
// (2 << 6) means "context-specific", 7 is the GeneralName tag.
return TLV((2 << 6) | 7, ByteString(bytes, L));
}
// Names should be zero or more GeneralNames, like DNSName and IPAddress return,
// concatenated together.
//
// CreatedEncodedSubjectAltName(ByteString()) results in a SAN with an empty
// sequence. CreateEmptyEncodedSubjectName() results in a SAN without any
// sequence.
ByteString CreateEncodedSubjectAltName(const ByteString& names);
ByteString CreateEncodedEmptySubjectAltName();
class TestKeyPair
{
public:
virtual ~TestKeyPair() { }
const TestPublicKeyAlgorithm publicKeyAlg;
// The DER encoding of the entire SubjectPublicKeyInfo structure. This is
// what is encoded in certificates.
const ByteString subjectPublicKeyInfo;
// The DER encoding of subjectPublicKeyInfo.subjectPublicKey. This is what is
// hashed to create CertIDs for OCSP.
const ByteString subjectPublicKey;
virtual Result SignData(const ByteString& tbs,
const TestSignatureAlgorithm& signatureAlgorithm,
/*out*/ ByteString& signature) const = 0;
virtual TestKeyPair* Clone() const = 0;
protected:
TestKeyPair(const TestPublicKeyAlgorithm& publicKeyAlg, const ByteString& spk);
TestKeyPair(const TestKeyPair&) = delete;
void operator=(const TestKeyPair&) = delete;
};
TestKeyPair* CloneReusedKeyPair();
TestKeyPair* GenerateKeyPair();
TestKeyPair* GenerateDSSKeyPair();
inline void DeleteTestKeyPair(TestKeyPair* keyPair) { delete keyPair; }
typedef ScopedPtr<TestKeyPair, DeleteTestKeyPair> ScopedTestKeyPair;
Result TestVerifyECDSASignedDigest(const SignedDigest& signedDigest,
Input subjectPublicKeyInfo);
Result TestVerifyRSAPKCS1SignedDigest(const SignedDigest& signedDigest,
Input subjectPublicKeyInfo);
Result TestDigestBuf(Input item, DigestAlgorithm digestAlg,
/*out*/ uint8_t* digestBuf, size_t digestBufLen);
// Replace one substring in item with another of the same length, but only if
// the substring was found exactly once. The "same length" restriction is
// useful for avoiding invalidating lengths encoded within the item. The
// "only once" restriction is helpful for avoiding making accidental changes.
//
// The string to search for must be 8 or more bytes long so that it is
// extremely unlikely that there will ever be any false positive matches
// in digital signatures, keys, hashes, etc.
Result TamperOnce(/*in/out*/ ByteString& item, const ByteString& from,
const ByteString& to);
///////////////////////////////////////////////////////////////////////////////
// Encode Certificates
enum Version { v1 = 0, v2 = 1, v3 = 2 };
// signature is assumed to be the DER encoding of an AlgorithmIdentifer. It is
// put into the signature field of the TBSCertificate. In most cases, it will
// be the same as signatureAlgorithm, which is the algorithm actually used
// to sign the certificate.
// serialNumber is assumed to be the DER encoding of an INTEGER.
//
// If extensions is null, then no extensions will be encoded. Otherwise,
// extensions must point to an array of ByteStrings, terminated with an empty
// ByteString. (If the first item of the array is empty then an empty
// Extensions sequence will be encoded.)
ByteString CreateEncodedCertificate(long version,
const TestSignatureAlgorithm& signature,
const ByteString& serialNumber,
const ByteString& issuerNameDER,
time_t notBefore, time_t notAfter,
const ByteString& subjectNameDER,
const TestKeyPair& subjectKeyPair,
/*optional*/ const ByteString* extensions,
const TestKeyPair& issuerKeyPair,
const TestSignatureAlgorithm& signatureAlgorithm);
ByteString CreateEncodedSerialNumber(long value);
enum class Critical { No = 0, Yes = 1 };
ByteString CreateEncodedBasicConstraints(bool isCA,
/*optional*/ long* pathLenConstraint,
Critical critical);
// Creates a DER-encoded extKeyUsage extension with one EKU OID.
ByteString CreateEncodedEKUExtension(Input eku, Critical critical);
///////////////////////////////////////////////////////////////////////////////
// Encode OCSP responses
class OCSPResponseExtension final
{
public:
OCSPResponseExtension();
ByteString id;
bool critical;
ByteString value;
OCSPResponseExtension* next;
};
class OCSPResponseContext final
{
public:
OCSPResponseContext(const CertID& certID, std::time_t time);
const CertID& certID;
// TODO(bug 980538): add a way to specify what certificates are included.
// The fields below are in the order that they appear in an OCSP response.
enum OCSPResponseStatus
{
successful = 0,
malformedRequest = 1,
internalError = 2,
tryLater = 3,
// 4 is not used
sigRequired = 5,
unauthorized = 6,
};
uint8_t responseStatus; // an OCSPResponseStatus or an invalid value
bool skipResponseBytes; // If true, don't include responseBytes
// responderID
ByteString signerNameDER; // If set, responderID will use the byName
// form; otherwise responderID will use the
// byKeyHash form.
std::time_t producedAt;
// SingleResponse extensions (for the certID given in the constructor).
OCSPResponseExtension* singleExtensions;
// ResponseData extensions.
OCSPResponseExtension* responseExtensions;
bool includeEmptyExtensions; // If true, include the extension wrapper
// regardless of if there are any actual
// extensions.
ScopedTestKeyPair signerKeyPair;
TestSignatureAlgorithm signatureAlgorithm;
bool badSignature; // If true, alter the signature to fail verification
const ByteString* certs; // optional; array terminated by an empty string
// The following fields are on a per-SingleResponse basis. In the future we
// may support including multiple SingleResponses per response.
enum CertStatus
{
good = 0,
revoked = 1,
unknown = 2,
};
uint8_t certStatus; // CertStatus or an invalid value
std::time_t revocationTime; // For certStatus == revoked
std::time_t thisUpdate;
std::time_t nextUpdate;
bool includeNextUpdate;
};
ByteString CreateEncodedOCSPResponse(OCSPResponseContext& context);
} } } // namespace mozilla::pkix::test
#endif // mozilla_pkix_test_pkixtestutils_h
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