http://www.bouncycastle.org/java.html: The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5. 
public interface org.bouncycastle.crypto.DerivationFunction
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.bouncycastle.crypto.DerivationFunction
  super_class: java.lang.Object
{
  public abstract void init(org.bouncycastle.crypto.DerivationParameters);
    descriptor: (Lorg/bouncycastle/crypto/DerivationParameters;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
       Name  Flags
      param  

  public abstract org.bouncycastle.crypto.Digest getDigest();
    descriptor: ()Lorg/bouncycastle/crypto/Digest;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract int generateBytes(byte[], int, int);
    descriptor: ([BII)I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws org.bouncycastle.crypto.DataLengthException, java.lang.IllegalArgumentException
    MethodParameters:
        Name  Flags
      out     
      outOff  
      len     
}
SourceFile: "DerivationFunction.java"