public DatabaseSettingsViewModel(IDatabaseSettingsProvider settingsProvider)
{
this.settingsProvider = settingsProvider ?? throw new ArgumentNullException(nameof(settingsProvider));
if (KdfGuid.Equals(AesParameters.AesUuid))
{
this._aesParams = this.settingsProvider.KdfParameters as AesParameters;
DebugHelper.Assert(this._aesParams != null);
this._argonParams = new Argon2Parameters(2, 64, 100);
}
else
{
DebugHelper.Assert(KdfGuid.Equals(Argon2Parameters.Argon2Uuid));
this._argonParams = this.settingsProvider.KdfParameters as Argon2Parameters;
DebugHelper.Assert(this._argonParams != null);
this._aesParams = new AesParameters(6000);
}
}
public async Task UpgradeCipherSettings()
{
DateTime lastPasswordChange = this.document.Metadata.MasterKeyChanged.Value;
Assert.AreEqual(EncryptionAlgorithm.Aes, this.settingsVm.Cipher, "AES should be the encryption algorithm before the test starts");
this.writer.Cipher = EncryptionAlgorithm.ChaCha20;
Assert.IsInstanceOfType(this.settingsVm.GetKdfParameters(), typeof(AesParameters), "AES should be the KDF before the test starts according to the VM");
Assert.IsInstanceOfType(this.writer.KdfParameters, typeof(AesParameters), "AES should be the KDF before the test starts according to the KdbxWriter");
this.settingsVm.KdfGuid = Argon2Parameters.Argon2Uuid;
this.settingsVm.ArgonParallelism = 3;
this.settingsVm.ArgonBlockCount = 24;
this.settingsVm.KdfIterations = 2;
Assert.IsInstanceOfType(this.writer.KdfParameters, typeof(Argon2Parameters), "Changes to the settings VM should be reflected in the KdbxWriter");
Assert.IsTrue(await this.persistenceService.Save(this.document));
KdbxReader reader = new KdbxReader();
using (IRandomAccessStream stream = await this.saveFile.AsIStorageFile.OpenReadAsync())
{
await reader.ReadHeaderAsync(stream, CancellationToken.None);
Assert.AreEqual(EncryptionAlgorithm.ChaCha20, reader.HeaderData.Cipher, "New reader should have the correct cipher");
Argon2Parameters argonParams = reader.HeaderData.KdfParameters as Argon2Parameters;
Assert.IsNotNull(argonParams, "Database should have properly persisted with Argon2");
Assert.AreEqual(3, (int)argonParams.Parallelism, "Argon2 parallelism should have been persisted correctly");
Assert.AreEqual(24, (int)argonParams.BlockCount, "Argon2 block count should have been persisted correctly");
Assert.AreEqual(2, (int)argonParams.Iterations, "Argon2 iteration count should have been persisted correctly");
KdbxDecryptionResult decryption = await reader.DecryptFileAsync(stream, this.dbPassword, this.dbKeyFile, CancellationToken.None);
Assert.AreEqual(KdbxParserCode.Success, decryption.Result.Code);
KdbxDocument document = decryption.GetDocument();
Assert.AreEqual(lastPasswordChange, document.Metadata.MasterKeyChanged.Value, "MasterKeyChanged timestamp should not have changed");
}
}
public static IPBKDFArgon2NotBuiltIn CreatePBKDFArgon2(byte[] password, Argon2Parameters parameters) => new PBKDFArgon2NotBuiltIn(password, parameters);
