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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtOpcUa/QOpcUaProvider>
#include <QtOpcUa/QOpcUaKeyPair>
#include <QtCore/QCoreApplication>
#include <QtCore/QScopedPointer>
#include <QOpcUaX509CertificateSigningRequest>
#include <QOpcUaX509ExtensionSubjectAlternativeName>
#include <QOpcUaX509ExtensionBasicConstraints>
#include <QOpcUaX509ExtensionKeyUsage>
#include <QOpcUaX509ExtensionExtendedKeyUsage>
#include <QtTest/QSignalSpy>
#include <QtTest/QtTest>
#define defineDataMethod(name) void name()\
{\
QTest::addColumn<QString>("backend");\
for (const auto &backend : m_backends) {\
const QString rowName = QStringLiteral("%1").arg(backend); \
QTest::newRow(rowName.toLatin1().constData()) << backend ; \
}\
}
class Tst_QOpcUaSecurity: public QObject
{
Q_OBJECT
public:
Tst_QOpcUaSecurity();
private slots:
void initTestCase();
void cleanupTestCase();
defineDataMethod(keyPairs_data)
void keyPairs();
defineDataMethod(certificateSigningRequest_data)
void certificateSigningRequest();
private:
QStringList m_backends;
QOpcUaProvider m_opcUa;
};
QByteArray textifyCertificateRequest(const QByteArray &data)
{
QProcess p;
p.start("openssl", QStringList {"req", "-text", "-noout"});
p.waitForStarted();
p.write(data);
p.closeWriteChannel();
p.waitForFinished();
return p.readAllStandardOutput();
}
QByteArray textifyCertificate(const QByteArray &data)
{
QProcess p;
p.start("openssl", QStringList {"x509", "-text", "-noout"});
p.waitForStarted();
p.write(data);
p.closeWriteChannel();
p.waitForFinished();
return p.readAllStandardOutput();
}
QByteArray asn1dump(const QByteArray &data)
{
QProcess p;
p.start("openssl", QStringList {"asn1parse", "-inform","PEM"});
p.waitForStarted();
p.write(data);
p.closeWriteChannel();
p.waitForFinished();
return p.readAllStandardOutput();
}
Tst_QOpcUaSecurity::Tst_QOpcUaSecurity()
{
m_backends = QOpcUaProvider::availableBackends();
}
void Tst_QOpcUaSecurity::initTestCase()
{
}
void Tst_QOpcUaSecurity::keyPairs()
{
QOpcUaKeyPair key;
QOpcUaKeyPair loadedKey;
QByteArray byteArray;
QVERIFY(key.hasPrivateKey() == false);
// Generate key
key.generateRsaKey(QOpcUaKeyPair::RsaKeyStrength::Bits1024);
QVERIFY(key.hasPrivateKey() == true);
// Export public key
byteArray = key.publicKeyToByteArray();
QVERIFY(byteArray.startsWith("-----BEGIN PUBLIC KEY-----\n"));
QVERIFY(byteArray.endsWith("-----END PUBLIC KEY-----\n"));
// Load public key
QVERIFY(loadedKey.loadFromPemData(byteArray));
QVERIFY(loadedKey.hasPrivateKey() == false);
// Check unencrypted PEM export
byteArray = key.privateKeyToByteArray(QOpcUaKeyPair::Cipher::Unencrypted, QString());
QVERIFY(byteArray.startsWith("-----BEGIN PRIVATE KEY-----\n"));
QVERIFY(byteArray.endsWith("-----END PRIVATE KEY-----\n"));
// Load private key from PEM data
QSignalSpy passwordSpy(&loadedKey, SIGNAL(passphraseNeeded(QString&,int,bool)));
QVERIFY(loadedKey.loadFromPemData(byteArray));
QVERIFY(loadedKey.hasPrivateKey() == true);
QCOMPARE(passwordSpy.size(), 0);
QCOMPARE(loadedKey.privateKeyToByteArray(QOpcUaKeyPair::Cipher::Unencrypted, QString()), byteArray);
// Check encrypted PEM export
byteArray = key.privateKeyToByteArray(QOpcUaKeyPair::Cipher::Aes128Cbc,
QStringLiteral("password"));
QVERIFY(byteArray.startsWith("-----BEGIN ENCRYPTED PRIVATE KEY-----\n"));
QVERIFY(byteArray.endsWith("-----END ENCRYPTED PRIVATE KEY-----\n"));
QCOMPARE(passwordSpy.size(), 0);
// Setup password callback
QString passphraseToReturn;
connect(&loadedKey, &QOpcUaKeyPair::passphraseNeeded, this, [&passphraseToReturn](QString &passphrase, int maximumLength, bool writeOperation){
Q_UNUSED(maximumLength);
qDebug() << "Requested a passphrase for" << (writeOperation ? "write":"read") << "operation";
passphrase = passphraseToReturn;
});
// Load key with wrong password
qDebug() << "Trying to decrypt with wrong password; will cause an error";
passphraseToReturn = "WrongPassword";
QVERIFY(!loadedKey.loadFromPemData(byteArray));
QCOMPARE(passwordSpy.size(), 1);
QVERIFY(loadedKey.hasPrivateKey() == false);
// Load key with right password
qDebug() << "Trying to decrypt with right password; will cause no error";
passphraseToReturn = "password";
QVERIFY(loadedKey.loadFromPemData(byteArray));
QCOMPARE(passwordSpy.size(), 2);
QCOMPARE(loadedKey.privateKeyToByteArray(QOpcUaKeyPair::Cipher::Unencrypted, QString()),
key.privateKeyToByteArray(QOpcUaKeyPair::Cipher::Unencrypted, QString()));
QVERIFY(loadedKey.hasPrivateKey() == true);
}
void Tst_QOpcUaSecurity::certificateSigningRequest()
{
QOpcUaKeyPair key;
// Generate key
key.generateRsaKey(QOpcUaKeyPair::RsaKeyStrength::Bits1024);
QVERIFY(key.hasPrivateKey() == true);
QOpcUaX509CertificateSigningRequest csr;
QOpcUaX509DistinguishedName dn;
dn.setEntry(QOpcUaX509DistinguishedName::Type::CommonName, "QtOpcUaViewer");
dn.setEntry(QOpcUaX509DistinguishedName::Type::CountryName, "DE");
dn.setEntry(QOpcUaX509DistinguishedName::Type::LocalityName, "Berlin");
dn.setEntry(QOpcUaX509DistinguishedName::Type::StateOrProvinceName, "Berlin");
dn.setEntry(QOpcUaX509DistinguishedName::Type::OrganizationName, "The Qt Company");
csr.setSubject(dn);
QOpcUaX509ExtensionSubjectAlternativeName *san = new QOpcUaX509ExtensionSubjectAlternativeName;
san->addEntry(QOpcUaX509ExtensionSubjectAlternativeName::Type::DNS, "foo.com");
san->addEntry(QOpcUaX509ExtensionSubjectAlternativeName::Type::DNS, "bla.com");
san->addEntry(QOpcUaX509ExtensionSubjectAlternativeName::Type::URI, "urn:foo.com:The%20Qt%20Company:QtOpcUaViewer");
san->setCritical(true);
csr.addExtension(san);
QOpcUaX509ExtensionBasicConstraints *bc = new QOpcUaX509ExtensionBasicConstraints;
bc->setCa(false);
bc->setCritical(true);
csr.addExtension(bc);
QOpcUaX509ExtensionKeyUsage *ku = new QOpcUaX509ExtensionKeyUsage;
ku->setCritical(true);
ku->setKeyUsage(QOpcUaX509ExtensionKeyUsage::KeyUsage::DigitalSignature);
ku->setKeyUsage(QOpcUaX509ExtensionKeyUsage::KeyUsage::NonRepudiation);
ku->setKeyUsage(QOpcUaX509ExtensionKeyUsage::KeyUsage::KeyEncipherment);
ku->setKeyUsage(QOpcUaX509ExtensionKeyUsage::KeyUsage::DataEncipherment);
ku->setKeyUsage(QOpcUaX509ExtensionKeyUsage::KeyUsage::KeyAgreement);
ku->setKeyUsage(QOpcUaX509ExtensionKeyUsage::KeyUsage::CertificateSigning);
ku->setKeyUsage(QOpcUaX509ExtensionKeyUsage::KeyUsage::CrlSigning);
ku->setKeyUsage(QOpcUaX509ExtensionKeyUsage::KeyUsage::EnciptherOnly);
ku->setKeyUsage(QOpcUaX509ExtensionKeyUsage::KeyUsage::DecipherOnly);
csr.addExtension(ku);
QOpcUaX509ExtensionExtendedKeyUsage *eku = new QOpcUaX509ExtensionExtendedKeyUsage;
eku->setCritical(true);
eku->setKeyUsage(QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage::TlsWebClientAuthentication);
eku->setKeyUsage(QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage::TlsWebServerAuthentication);
eku->setKeyUsage(QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage::EmailProtection);
eku->setKeyUsage(QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage::SignExecutableCode);
csr.addExtension(eku);
QByteArray csrData = csr.createRequest(key);
qDebug() << csrData;
QVERIFY(csrData.startsWith("-----BEGIN CERTIFICATE REQUEST-----\n"));
QVERIFY(csrData.endsWith("\n-----END CERTIFICATE REQUEST-----\n"));
qDebug().noquote() << textifyCertificateRequest(csrData);
qDebug().noquote() << asn1dump(csrData);
QByteArray certData = csr.createSelfSignedCertificate(key);
qDebug() << certData;
QVERIFY(certData.startsWith("-----BEGIN CERTIFICATE-----\n"));
QVERIFY(certData.endsWith("\n-----END CERTIFICATE-----\n"));
const auto textCert = QString::fromUtf8(textifyCertificate(certData));
qDebug().noquote() << textCert;
qDebug().noquote() << asn1dump(certData);
if (textCert.isEmpty())
QEXPECT_FAIL("", "Textified cert is empty, is the openssl executable in your PATH?", Abort);
QVERIFY(textCert.contains(QStringLiteral("Digital Signature, Non Repudiation, Key Encipherment, Data Encipherment, Key Agreement, Certificate Sign, CRL Sign, Encipher Only, Decipher Only")));
QVERIFY(textCert.contains(QStringLiteral("TLS Web Server Authentication, TLS Web Client Authentication, Code Signing, E-mail Protection")));
}
void Tst_QOpcUaSecurity::cleanupTestCase()
{
}
int main(int argc, char *argv[])
{
QCoreApplication app(argc, argv);
QTEST_SET_MAIN_SOURCE_PATH
// run tests for all available backends
QStringList availableBackends = QOpcUaProvider::availableBackends();
if (availableBackends.empty()) {
qDebug("No OPCUA backends found, skipping tests.");
return EXIT_SUCCESS;
}
Tst_QOpcUaSecurity tc;
return QTest::qExec(&tc, argc, argv);
}
#include "tst_x509.moc"
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