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.Mac
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.bouncycastle.crypto.Mac
  super_class: java.lang.Object
{
  public abstract void init(org.bouncycastle.crypto.CipherParameters);
    descriptor: (Lorg/bouncycastle/crypto/CipherParameters;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.lang.IllegalArgumentException
    MethodParameters:
        Name  Flags
      params  

  public abstract java.lang.String getAlgorithmName();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract int getMacSize();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract void update(byte);
    descriptor: (B)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.lang.IllegalStateException
    MethodParameters:
      Name  Flags
      in    

  public abstract void update(byte[], int, int);
    descriptor: ([BII)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws org.bouncycastle.crypto.DataLengthException, java.lang.IllegalStateException
    MethodParameters:
       Name  Flags
      in     
      inOff  
      len    

  public abstract int doFinal(byte[], int);
    descriptor: ([BI)I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws org.bouncycastle.crypto.DataLengthException, java.lang.IllegalStateException
    MethodParameters:
        Name  Flags
      out     
      outOff  

  public abstract void reset();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "Mac.java"