org.apache.xml.security.encryption.keys.content.derivedKey

Interface DerivationAlgorithm<T extends KeyDerivationParameters>

All Known Implementing Classes:

ConcatKDF, HKDF

public interface DerivationAlgorithm<T extends KeyDerivationParameters>

The DerivationAlgorithm is the base interface for all key derivation algorithms implementation.

Method Summary

Modifier and Type	Method and Description
byte[]	deriveKey(byte[] secret, T params) Derives a key from the given secret and other info.

Method Detail

deriveKey

byte[] deriveKey(byte[] secret,
                 T params)
          throws XMLSecurityException

Derives a key from the given secret and other info.

Parameters:

secret - The "shared" secret to use for key derivation (e.g. the secret key)

params - The key derivation parameters implementing the KeyDerivationParameters interface

Returns:

Byte array of the derived key

Throws:

XMLSecurityException - in case of derivation error or invalid parameters