public CryptographicKey GetDerivedValidationKey(IMasterKeyProvider masterKeyProvider, KeyDerivationFunction keyDerivationFunction)
{
CryptographicKey cryptographicKey = this.DerivedValidationKey;
if (cryptographicKey == null)
{
CryptographicKey validationKey = masterKeyProvider.GetValidationKey();
cryptographicKey = keyDerivationFunction(validationKey, this);
if (this.SaveDerivedKeys)
{
this.DerivedValidationKey = cryptographicKey;
}
}
return(cryptographicKey);
}
private NetFXCryptoService GetNetFXCryptoService()
{
if (_encryptionKey == null)
{
_encryptionKey = DeriveKey(_masterKeyProvider.GetEncryptionKey());
}
if (_validationKey == null)
{
_validationKey = DeriveKey(_masterKeyProvider.GetValidationKey());
}
// and return the ICryptoService
// (predictable IV turned on if the caller requested cacheable output)
return(new NetFXCryptoService(_cryptoAlgorithmFactory, _encryptionKey, _validationKey));
}
public CryptographicKey GetDerivedValidationKey(IMasterKeyProvider masterKeyProvider, KeyDerivationFunction keyDerivationFunction)
{
// has a key already been stored?
CryptographicKey actualDerivedKey = DerivedValidationKey;
if (actualDerivedKey == null)
{
CryptographicKey masterKey = masterKeyProvider.GetValidationKey();
actualDerivedKey = keyDerivationFunction(masterKey, this);
// only save the key back to storage if this Purpose is configured to do so
if (SaveDerivedKeys)
{
DerivedValidationKey = actualDerivedKey;
}
}
return(actualDerivedKey);
}
public CryptographicKey GetDerivedValidationKey(IMasterKeyProvider masterKeyProvider, KeyDerivationFunction keyDerivationFunction) {
// has a key already been stored?
CryptographicKey actualDerivedKey = DerivedValidationKey;
if (actualDerivedKey == null) {
CryptographicKey masterKey = masterKeyProvider.GetValidationKey();
actualDerivedKey = keyDerivationFunction(masterKey, this);
// only save the key back to storage if this Purpose is configured to do so
if (SaveDerivedKeys) {
DerivedValidationKey = actualDerivedKey;
}
}
return actualDerivedKey;
}