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 to JDK 1.8.
  • The Legion of the Bouncy Castle Inc. 
package org.bouncycastle.crypto;


base interface for general purpose Mac based byte derivation functions.

/**
 * base interface for general purpose Mac based byte derivation functions.
 */
public interface MacDerivationFunction
    extends DerivationFunction
{
    
return the MAC used as the basis for the function

Returns:the Mac.
/**
     * return the MAC used as the basis for the function
     *
     * @return the Mac.
     */
    public Mac getMac();
}