1 package org.bouncycastle.crypto; 2 3 /** 4 * base interface for general purpose byte derivation functions. 5 */ 6 public interface DerivationFunction 7 { init(DerivationParameters param)8 public void init(DerivationParameters param); 9 generateBytes(byte[] out, int outOff, int len)10 public int generateBytes(byte[] out, int outOff, int len) 11 throws DataLengthException, IllegalArgumentException; 12 } 13