/*
 * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.security.web.authentication.preauth.x509;

import java.security.cert.X509Certificate;

/**
 * Obtains the principal from an X509Certificate for use within the framework.
 *
 * @author Luke Taylor
 */
public interface X509PrincipalExtractor {

	/**
	 * Returns the principal (usually a String) for the given certificate.
	 */
	Object extractPrincipal(X509Certificate cert);

}
