Hmac.java

package com.eucalyptus.auth.crypto;

import java.security.NoSuchAlgorithmException;
import javax.crypto.Mac;
import org.apache.log4j.Logger;

public enum Hmac {
  HmacSHA1,
  HmacSHA256;

  private static Logger LOG = Logger.getLogger( Hmac.class );
  public Mac getInstance() {
    try {
      return Mac.getInstance( this.toString( ) );
    } catch ( NoSuchAlgorithmException e ) {
      LOG.fatal( e, e );
      System.exit( 1 );
      throw new RuntimeException( e );
    }
  }
}