nextcloud-desktop/test/testclientsideencryption.cpp

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/*
This software is in the public domain, furnished "as is", without technical
support, and with no warranty, express or implied, as to its usefulness for
any purpose.
*/
#include <QtTest>
#include "clientsideencryption.h"
using namespace OCC;
class TestClientSideEncryption : public QObject
{
Q_OBJECT
QByteArray convertToOldStorageFormat(const QByteArray &data)
{
return data.split('|').join("fA==");
}
private slots:
void shouldEncryptPrivateKeys()
{
// GIVEN
const auto encryptionKey = QByteArrayLiteral("foo");
const auto privateKey = QByteArrayLiteral("bar");
const auto originalSalt = QByteArrayLiteral("baz");
// WHEN
const auto cipher = EncryptionHelper::encryptPrivateKey(encryptionKey, privateKey, originalSalt);
// THEN
const auto parts = cipher.split('|');
QCOMPARE(parts.size(), 3);
const auto encryptedKey = QByteArray::fromBase64(parts[0]);
const auto iv = QByteArray::fromBase64(parts[1]);
const auto salt = QByteArray::fromBase64(parts[2]);
// We're not here to check the merits of the encryption but at least make sure it's been
// somewhat ciphered
QVERIFY(!encryptedKey.isEmpty());
QVERIFY(encryptedKey != privateKey);
QVERIFY(!iv.isEmpty());
QCOMPARE(salt, originalSalt);
}
void shouldDecryptPrivateKeys()
{
// GIVEN
const auto encryptionKey = QByteArrayLiteral("foo");
const auto originalPrivateKey = QByteArrayLiteral("bar");
const auto originalSalt = QByteArrayLiteral("baz");
const auto cipher = EncryptionHelper::encryptPrivateKey(encryptionKey, originalPrivateKey, originalSalt);
// WHEN
const auto privateKey = EncryptionHelper::decryptPrivateKey(encryptionKey, cipher);
const auto salt = EncryptionHelper::extractPrivateKeySalt(cipher);
// THEN
QCOMPARE(privateKey, originalPrivateKey);
QCOMPARE(salt, originalSalt);
}
void shouldDecryptPrivateKeysInOldStorageFormat()
{
// GIVEN
const auto encryptionKey = QByteArrayLiteral("foo");
const auto originalPrivateKey = QByteArrayLiteral("bar");
const auto originalSalt = QByteArrayLiteral("baz");
const auto cipher = convertToOldStorageFormat(EncryptionHelper::encryptPrivateKey(encryptionKey, originalPrivateKey, originalSalt));
// WHEN
const auto privateKey = EncryptionHelper::decryptPrivateKey(encryptionKey, cipher);
const auto salt = EncryptionHelper::extractPrivateKeySalt(cipher);
// THEN
QCOMPARE(privateKey, originalPrivateKey);
QCOMPARE(salt, originalSalt);
}
void shouldSymmetricEncryptStrings()
{
// GIVEN
const auto encryptionKey = QByteArrayLiteral("foo");
const auto data = QByteArrayLiteral("bar");
// WHEN
const auto cipher = EncryptionHelper::encryptStringSymmetric(encryptionKey, data);
// THEN
const auto parts = cipher.split('|');
QCOMPARE(parts.size(), 2);
const auto encryptedData = QByteArray::fromBase64(parts[0]);
const auto iv = QByteArray::fromBase64(parts[1]);
// We're not here to check the merits of the encryption but at least make sure it's been
// somewhat ciphered
QVERIFY(!encryptedData.isEmpty());
QVERIFY(encryptedData != data);
QVERIFY(!iv.isEmpty());
}
void shouldSymmetricDecryptStrings()
{
// GIVEN
const auto encryptionKey = QByteArrayLiteral("foo");
const auto originalData = QByteArrayLiteral("bar");
const auto cipher = EncryptionHelper::encryptStringSymmetric(encryptionKey, originalData);
// WHEN
const auto data = EncryptionHelper::decryptStringSymmetric(encryptionKey, cipher);
// THEN
QCOMPARE(data, originalData);
}
void shouldSymmetricDecryptStringsInOldStorageFormat()
{
// GIVEN
const auto encryptionKey = QByteArrayLiteral("foo");
const auto originalData = QByteArrayLiteral("bar");
const auto cipher = convertToOldStorageFormat(EncryptionHelper::encryptStringSymmetric(encryptionKey, originalData));
// WHEN
const auto data = EncryptionHelper::decryptStringSymmetric(encryptionKey, cipher);
// THEN
QCOMPARE(data, originalData);
}
};
QTEST_APPLESS_MAIN(TestClientSideEncryption)
#include "testclientsideencryption.moc"