package at.gv.egovernment.moa.spss.api.common;

import java.security.cert.X509Certificate;


/**
 * Contains information about the signer.
 * 
 * @author Patrick Peck
 * @author Stephan Grill
 * @version $Id$
 */
public interface SignerInfo {
  /**
   * Gets the signer certificate.
   * 
   * @return The signer certificate.
   */  
  public X509Certificate getSignerCertificate();
  /**
   * Checks, whether the certificate contained in this object is qualified.
   * 
   * @return <code>true</code>, if the certificate is qualified, otherwise
   * <code>false</code>.
   */
  public boolean isQualifiedCertificate();
  /**
   * Checks, whether the certificate contained in this object is a 
   * public authority certificate.
   * 
   * @return <code>true</code>, if the certificate is a public authority 
   * certificate, otherwise <code>false</code>.
   */
  public boolean isPublicAuthority();
  /**
   * Gets the public authority ID, if the certificate contained in this
   * object is from a public authority.
   * 
   * @return The public authority ID.
   */  
  public String getPublicAuhtorityID();

}