Java Security isOriginalTicketGrantingTicket(KerberosTicket ticket)

Description

Check whether the server principal is the TGS's principal

License

Apache License

Parameter

Parameter	Description
ticket	the original TGT (the ticket that is obtained when a kinit is done)

Return

true or false

Declaration

static boolean isOriginalTicketGrantingTicket(KerberosTicket ticket) 

Method Source Code

//package com.java2s;
/*//from ww  w.jav  a 2 s .  c o m
 * 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
 *
 *     http://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.
 */

import javax.security.auth.kerberos.KerberosPrincipal;
import javax.security.auth.kerberos.KerberosTicket;

public class Main {
    /**
     * Check whether the server principal is the TGS's principal
     *
     * @param ticket the original TGT (the ticket that is obtained when a
     * kinit is done)
     * @return true or false
     */
    static boolean isOriginalTicketGrantingTicket(KerberosTicket ticket) {
        return isTicketGrantingServerPrincipal(ticket.getServer());
    }

    /**
     * TGS must have the server principal of the form "krbtgt/FOO@FOO".
     *
     * @return true or false
     */
    private static boolean isTicketGrantingServerPrincipal(KerberosPrincipal principal) {
        if (principal == null) {
            return false;
        }
        if (principal.getName().equals("krbtgt/" + principal.getRealm() + "@" + principal.getRealm())) {
            return true;
        }
        return false;
    }
}

Related

1. getSaslProps()
2. getServerPrivateKey(Subject subject, int keyType)
3. getSubject()
4. getTicketGrantingTicket(Subject subject)
5. isDN(String user)
6. jaasConfig(String loginContextName, String key)
7. jaasConfigOption(Configuration jaasConfig, String loginContextName, String key, String loginModuleName)
8. kinit(String username, char[] password)
9. logout()