https://openjdk.java.net/ 
/*
 * Copyright (c) 1999, 2005, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package javax.net.ssl;

import java.security.cert.*;


Instance of this interface manage which X509 certificates
may be used to authenticate the remote side of a secure
socket. Decisions may be based on trusted certificate
authorities, certificate revocation lists, online
status checking or other means.

Since:1.4
/**
 * Instance of this interface manage which X509 certificates
 * may be used to authenticate the remote side of a secure
 * socket. Decisions may be based on trusted certificate
 * authorities, certificate revocation lists, online
 * status checking or other means.
 *
 * @since 1.4
 */
public interface X509TrustManager extends TrustManager {
    
Given the partial or complete certificate chain provided by the
peer, build a certificate path to a trusted root and return if
it can be validated and is trusted for client SSL
authentication based on the authentication type.


The authentication type is determined by the actual certificate
used. For instance, if RSAPublicKey is used, the authType
should be "RSA". Checking is case-sensitive.

Params:
  • chain – the peer certificate chain
  • authType – the authentication type based on the client certificate
Throws:
  • IllegalArgumentException – if null or zero-length chain
        is passed in for the chain parameter or if null or zero-length
        string is passed in for the  authType parameter
  • CertificateException – if the certificate chain is not trusted
        by this TrustManager.
/**
     * Given the partial or complete certificate chain provided by the
     * peer, build a certificate path to a trusted root and return if
     * it can be validated and is trusted for client SSL
     * authentication based on the authentication type.
     * <p>
     * The authentication type is determined by the actual certificate
     * used. For instance, if RSAPublicKey is used, the authType
     * should be "RSA". Checking is case-sensitive.
     *
     * @param chain the peer certificate chain
     * @param authType the authentication type based on the client certificate
     * @throws IllegalArgumentException if null or zero-length chain
     *         is passed in for the chain parameter or if null or zero-length
     *         string is passed in for the  authType parameter
     * @throws CertificateException if the certificate chain is not trusted
     *         by this TrustManager.
     */
    public void checkClientTrusted(X509Certificate[] chain, String authType)
        throws CertificateException;

    
Given the partial or complete certificate chain provided by the
peer, build a certificate path to a trusted root and return if
it can be validated and is trusted for server SSL
authentication based on the authentication type.


The authentication type is the key exchange algorithm portion
of the cipher suites represented as a String, such as "RSA",
"DHE_DSS". Note: for some exportable cipher suites, the key
exchange algorithm is determined at run time during the
handshake. For instance, for TLS_RSA_EXPORT_WITH_RC4_40_MD5,
the authType should be RSA_EXPORT when an ephemeral RSA key is
used for the key exchange, and RSA when the key from the server
certificate is used. Checking is case-sensitive.

Params:
  • chain – the peer certificate chain
  • authType – the key exchange algorithm used
Throws:
  • IllegalArgumentException – if null or zero-length chain
        is passed in for the chain parameter or if null or zero-length
        string is passed in for the  authType parameter
  • CertificateException – if the certificate chain is not trusted
        by this TrustManager.
/**
     * Given the partial or complete certificate chain provided by the
     * peer, build a certificate path to a trusted root and return if
     * it can be validated and is trusted for server SSL
     * authentication based on the authentication type.
     * <p>
     * The authentication type is the key exchange algorithm portion
     * of the cipher suites represented as a String, such as "RSA",
     * "DHE_DSS". Note: for some exportable cipher suites, the key
     * exchange algorithm is determined at run time during the
     * handshake. For instance, for TLS_RSA_EXPORT_WITH_RC4_40_MD5,
     * the authType should be RSA_EXPORT when an ephemeral RSA key is
     * used for the key exchange, and RSA when the key from the server
     * certificate is used. Checking is case-sensitive.
     *
     * @param chain the peer certificate chain
     * @param authType the key exchange algorithm used
     * @throws IllegalArgumentException if null or zero-length chain
     *         is passed in for the chain parameter or if null or zero-length
     *         string is passed in for the  authType parameter
     * @throws CertificateException if the certificate chain is not trusted
     *         by this TrustManager.
     */
    public void checkServerTrusted(X509Certificate[] chain, String authType)
        throws CertificateException;

    
Return an array of certificate authority certificates
which are trusted for authenticating peers.

Returns:a non-null (possibly empty) array of acceptable
         CA issuer certificates.
/**
     * Return an array of certificate authority certificates
     * which are trusted for authenticating peers.
     *
     * @return a non-null (possibly empty) array of acceptable
     *          CA issuer certificates.
     */
    public X509Certificate[] getAcceptedIssuers();
}