JDK 11 java.security.jgss.jmod - Security JGSS Module

JDK 11 java.security.jgss.jmod is the JMOD file for JDK 11 Security JGSS (Java Generic Security Service) module.

JDK 11 Security JGSS module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.security.jgss.jmod.

JDK 11 Security JGSS module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Security JGSS module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.security.jgss.

You can click and view the content of each source code file in the list below.

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org/ietf/jgss/ChannelBinding.java

/*
 * Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package org.ietf.jgss;

import java.net.InetAddress;
import java.util.Arrays;

/**
 * This class encapsulates the concept of caller-provided channel
 * binding information. Channel bindings are used to strengthen the
 * quality with which peer entity authentication is provided during
 * context establishment.  They enable the GSS-API callers to bind the
 * establishment of the security context to relevant characteristics
 * like addresses or to application specific data.<p>
 *
 * The caller initiating the security context must determine the
 * appropriate channel binding values to set in the GSSContext object.
 * The acceptor must provide an identical binding in order to validate
 * that received tokens possess correct channel-related characteristics.<p>
 *
 * Use of channel bindings is optional in GSS-API. ChannelBinding can be
 * set for the {@link GSSContext GSSContext} using the {@link
 * GSSContext#setChannelBinding(ChannelBinding) setChannelBinding} method
 * before the first call to {@link GSSContext#initSecContext(byte[], int, int)
 * initSecContext} or {@link GSSContext#acceptSecContext(byte[], int, int)
 * acceptSecContext} has been performed.  Unless the <code>setChannelBinding</code>
 * method has been used to set the ChannelBinding for a GSSContext object,
 * <code>null</code> ChannelBinding will be assumed. <p>
 *
 * Conceptually, the GSS-API concatenates the initiator and acceptor
 * address information, and the application supplied byte array to form an
 * octet string.  The mechanism calculates a MIC over this octet string and
 * binds the MIC to the context establishment token emitted by
 * <code>initSecContext</code> method of the <code>GSSContext</code>
 * interface.  The same bindings are set by the context acceptor for its
 * <code>GSSContext</code> object and during processing of the
 * <code>acceptSecContext</code> method a MIC is calculated in the same
 * way. The calculated MIC is compared with that found in the token, and if
 * the MICs differ, accept will throw a <code>GSSException</code> with the
 * major code set to {@link GSSException#BAD_BINDINGS BAD_BINDINGS}, and
 * the context will not be established. Some mechanisms may include the
 * actual channel binding data in the token (rather than just a MIC);
 * applications should therefore not use confidential data as
 * channel-binding components.<p>
 *
 *  Individual mechanisms may impose additional constraints on addresses
 *  that may appear in channel bindings.  For example, a mechanism may
 *  verify that the initiator address field of the channel binding
 *  contains the correct network address of the host system.  Portable
 *  applications should therefore ensure that they either provide correct
 *  information for the address fields, or omit setting of the addressing
 *  information.
 *
 * @author Mayank Upadhyay
 * @since 1.4
 */
public class ChannelBinding {

    private InetAddress initiator;
    private InetAddress acceptor;
    private  byte[] appData;

    /**
     * Create a ChannelBinding object with user supplied address information
     * and data.  <code>null</code> values can be used for any fields which the
     * application does not want to specify.
     *
     * @param initAddr the address of the context initiator.
     * <code>null</code> value can be supplied to indicate that the
     * application does not want to set this value.
     * @param acceptAddr the address of the context
     * acceptor. <code>null</code> value can be supplied to indicate that
     * the application does not want to set this value.
     * @param appData application supplied data to be used as part of the
     * channel bindings. <code>null</code> value can be supplied to
     * indicate that the application does not want to set this value.
     */
    public ChannelBinding(InetAddress initAddr, InetAddress acceptAddr,
                        byte[] appData) {

        initiator = initAddr;
        acceptor = acceptAddr;

        if (appData != null) {
            this.appData = new byte[appData.length];
            java.lang.System.arraycopy(appData, 0, this.appData, 0,
                                appData.length);
        }
    }

    /**
     * Creates a ChannelBinding object without any addressing information.
     *
     * @param appData application supplied data to be used as part of the
     * channel bindings.
     */
    public ChannelBinding(byte[] appData) {
        this(null, null, appData);
    }

    /**
     * Get the initiator's address for this channel binding.
     *
     * @return the initiator's address. <code>null</code> is returned if
     * the address has not been set.
     */
    public InetAddress getInitiatorAddress() {
        return initiator;
    }

    /**
     * Get the acceptor's address for this channel binding.
     *
     * @return the acceptor's address. null is returned if the address has
     * not been set.
     */
    public InetAddress getAcceptorAddress() {
        return acceptor;
    }

    /**
     * Get the application specified data for this channel binding.
     *
     * @return the application data being used as part of the
     * ChannelBinding. <code>null</code> is returned if no application data
     * has been specified for the channel binding.
     */
    public byte[] getApplicationData() {

        if (appData == null) {
            return null;
        }

        byte[] retVal = new byte[appData.length];
        System.arraycopy(appData, 0, retVal, 0, appData.length);
        return retVal;
    }

    /**
     * Compares two instances of ChannelBinding.
     *
     * @param obj another ChannelBinding to compare this one with
     * @return true if the two ChannelBinding's contain
     * the same values for the initiator and acceptor addresses and the
     * application data.
     */
    public boolean equals(Object obj) {

        if (this == obj)
            return true;

        if (! (obj instanceof ChannelBinding))
            return false;

        ChannelBinding cb = (ChannelBinding) obj;

        if ((initiator != null && cb.initiator == null) ||
            (initiator == null && cb.initiator != null))
            return false;

        if (initiator != null && !initiator.equals(cb.initiator))
            return false;

        if ((acceptor != null && cb.acceptor == null) ||
            (acceptor == null && cb.acceptor != null))
            return false;

        if (acceptor != null && !acceptor.equals(cb.acceptor))
            return false;

        return Arrays.equals(appData, cb.appData);
    }

    /**
     * Returns a hashcode value for this ChannelBinding object.
     *
     * @return a hashCode value
     */
    public int hashCode() {
        if (initiator != null)
            return initiator.hashCode();
        else if (acceptor != null)
            return acceptor.hashCode();
        else if (appData != null)
            return new String(appData).hashCode();
        else
            return 1;
    }
}

org/ietf/jgss/ChannelBinding.java

 

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