public void TestMinimumGuaranteeV2KeyWrapIterations()
{
DateTime now = DateTime.UtcNow;
int callCounter = -1;
bool shouldTerminate = false;
((FakeNow)New <INow>()).TimeFunction = () =>
{
if (shouldTerminate)
{
throw new InvalidOperationException("There should be no more calls at this point.");
}
if (callCounter++ == 0)
{
return(now);
}
if (callCounter < 5)
{
return(now.AddMilliseconds(callCounter * 50));
}
shouldTerminate = true;
return(now.AddMilliseconds(500));
};
long keyWrapIterations = new IterationCalculator().KeyWrapIterations(new V2Aes256CryptoFactory().CryptoId);
Assert.That(keyWrapIterations, Is.EqualTo(5000), "The minimum guarantee should hold.");
}
public static void TestKeyWrapIterationCalculator()
{
IterationCalculator calculator = Mock.Of <IterationCalculator>(c => c.KeyWrapIterations(It.Is <Guid>(g => g == new V1Aes128CryptoFactory().CryptoId)) == 666);
UserSettings settings = new UserSettings(new SettingsStore(New <IDataStore>(@"C:\Folder\UserSettings.txt")), calculator);
Assert.That(settings.GetKeyWrapIterations(new V1Aes128CryptoFactory().CryptoId), Is.EqualTo(666));
}
public UserSettings(ISettingsStore settingsStore, IterationCalculator keyWrapIterationCalculator)
{
if (settingsStore == null)
{
throw new ArgumentNullException(nameof(settingsStore));
}
_settingsStore = settingsStore;
_keyWrapIterationCalculator = keyWrapIterationCalculator;
if (_settingsStore[nameof(SettingsVersion)].Length == 0)
{
_settingsStore[nameof(SettingsVersion)] = Convert.ToString(New <UserSettingsVersion>().Current, CultureInfo.InvariantCulture);
}
}
public void TestCalculatedV1KeyWrapIterations()
{
DateTime now = DateTime.UtcNow;
int callCounter = -1;
bool shouldTerminate = false;
((FakeNow)New <INow>()).TimeFunction = () =>
{
if (shouldTerminate)
{
throw new InvalidOperationException("There should be no more calls at this point.");
}
if (callCounter++ == 0)
{
return(now);
}
return(now.AddMilliseconds(callCounter * 4));
};
long keyWrapIterations = new IterationCalculator().KeyWrapIterations(new V1Aes128CryptoFactory().CryptoId);
Assert.That(keyWrapIterations, Is.EqualTo(12500), "If we do 125000 iterations in 500ms, the result should be 12500 as default iterations (1/20s).");
}
public FakeUserSettings(IterationCalculator keyWrapIterationCalculator)
: base(New <ISettingsStore>(), keyWrapIterationCalculator)
{
}
