private AESCryptographer([NotNull] ProviderElement provider, IEnumerable<Key> keys = null)
{
_provider = provider;
if (keys == null)
return;
_aesEncryptionKeys.AddRange(keys);
// ReSharper disable PossibleNullReferenceException
_aesEncryptionKeys.Sort((a, b) => b.Expiry.CompareTo(a.Expiry));
// ReSharper restore PossibleNullReferenceException
}
public CryptographyProvider GetOrAddProvider(
[NotNull] string providerId,
[NotNull] Func <CryptographyProvider> addFunc)
{
if (string.IsNullOrWhiteSpace(providerId))
{
throw new ArgumentException(
Resources.CryptographyConfiguration_GetOrAddProvider_Invalid_Provider_ID,
nameof(providerId));
}
// ReSharper disable ExceptionNotDocumented
ProviderElement providerElement = Providers[providerId];
CryptographyProvider provider;
if (providerElement != null)
{
// Enable the provider if disabled.
if (!providerElement.IsEnabled)
{
providerElement.IsEnabled = true;
}
// Try to get the provider
provider = providerElement.GetProvider();
if (provider != null)
{
// Set the provider's ID so it knows it came from the configuration.
provider.Id = providerId;
return(provider);
}
}
// Create a new provider
provider = addFunc();
if (provider == null)
{
throw new CryptographicException(
Resources.CryptographyConfiguration_GetOrAddProvider_Add_Returned_Null);
}
// Set the provider's ID so it knows it came from the configuration.
provider.Id = providerId;
if (providerElement == null)
{
providerElement = new ProviderElement
{
Id = providerId,
Name = provider.Name,
Configuration = provider.Configuration,
IsEnabled = true
};
Providers.Add(providerElement);
}
else
{
providerElement.Id = providerId;
providerElement.Name = provider.Name;
providerElement.Configuration = provider.Configuration;
providerElement.IsEnabled = true;
}
// Save this configuration
Save();
// Return the provider
return(provider);
}