Java example source code file (KeyUsage.java)

This example Java source code file (KeyUsage.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

keyusage, krbapreq, krbasrep, krbtgsrep, krbtgsreq, ku_enc_krb_cred_part, ku_enc_krb_priv_part, ku_enc_tgs_rep_part_sesskey, ku_enc_tgs_rep_part_subkey, ku_krb_safe_cksum, ku_pa_tgs_req_authenticator, ku_pa_tgs_req_cksum, ku_unknown, s4u2user

The KeyUsage.java Java example source code

/*
 * Copyright (c) 2004, 2012, 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 sun.security.krb5.internal.crypto;

/**
 * Key usages used for key derivation in Kerberos.
 */
public class KeyUsage {

    private KeyUsage() {
    }

    public static final int KU_UNKNOWN = 0;                     // Cannot be 0

    // Defined in draft-yu-krb-wg-kerberos-extensions-00.txt, Appendix A
    public static final int KU_PA_ENC_TS = 1;                   // KrbAsReq
    public static final int KU_TICKET = 2;                      // KrbApReq (ticket)
    public static final int KU_ENC_AS_REP_PART = 3;             // KrbAsRep
    public static final int KU_TGS_REQ_AUTH_DATA_SESSKEY= 4;    // KrbTgsReq
    public static final int KU_TGS_REQ_AUTH_DATA_SUBKEY = 5;    // KrbTgsReq
    public static final int KU_PA_TGS_REQ_CKSUM = 6;            // KrbTgsReq
    public static final int KU_PA_TGS_REQ_AUTHENTICATOR = 7;    // KrbApReq
    public static final int KU_ENC_TGS_REP_PART_SESSKEY = 8;    // KrbTgsRep
    public static final int KU_ENC_TGS_REP_PART_SUBKEY = 9;     // KrbTgsRep
    public static final int KU_AUTHENTICATOR_CKSUM = 10;
    public static final int KU_AP_REQ_AUTHENTICATOR = 11;       // KrbApReq
    public static final int KU_ENC_AP_REP_PART = 12;            // KrbApRep
    public static final int KU_ENC_KRB_PRIV_PART = 13;          // KrbPriv
    public static final int KU_ENC_KRB_CRED_PART = 14;          // KrbCred
    public static final int KU_KRB_SAFE_CKSUM = 15;             // KrbSafe
    public static final int KU_PA_FOR_USER_ENC_CKSUM = 17;      // S4U2user
    public static final int KU_AD_KDC_ISSUED_CKSUM = 19;

    public static final boolean isValid(int usage) {
        return usage >= 0;
    }
}