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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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package sun.security.jgss.krb5;

import org.ietf.jgss.*;
import java.io.InputStream;
import java.io.IOException;
import java.security.AccessController;

import sun.security.action.GetBooleanAction;
import sun.security.krb5.*;

class AcceptSecContextToken extends InitialToken {

    private KrbApRep apRep = null;

    
Creates an AcceptSecContextToken for the context acceptor to send to the context initiator.
/** * Creates an AcceptSecContextToken for the context acceptor to send to * the context initiator. */
public AcceptSecContextToken(Krb5Context context, KrbApReq apReq) throws KrbException, IOException, GSSException { boolean useSubkey = AccessController.doPrivileged( new GetBooleanAction("sun.security.krb5.acceptor.subkey")); boolean useSequenceNumber = true; EncryptionKey subKey = null; if (useSubkey) { subKey = new EncryptionKey(apReq.getCreds().getSessionKey()); context.setKey(Krb5Context.ACCEPTOR_SUBKEY, subKey); } apRep = new KrbApRep(apReq, useSequenceNumber, subKey); context.resetMySequenceNumber(apRep.getSeqNumber().intValue()); /* * Note: The acceptor side context key was set when the * InitSecContextToken was received. */ }
Creates an AcceptSecContextToken at the context initiator's side using the bytes received from the acceptor.
/** * Creates an AcceptSecContextToken at the context initiator's side * using the bytes received from the acceptor. */
public AcceptSecContextToken(Krb5Context context, Credentials serviceCreds, KrbApReq apReq, InputStream is) throws IOException, GSSException, KrbException { int tokenId = ((is.read()<<8) | is.read()); if (tokenId != Krb5Token.AP_REP_ID) throw new GSSException(GSSException.DEFECTIVE_TOKEN, -1, "AP_REP token id does not match!"); byte[] apRepBytes = new sun.security.util.DerValue(is).toByteArray(); KrbApRep apRep = new KrbApRep(apRepBytes, serviceCreds, apReq); /* * Allow the context acceptor to set a subkey if desired, even * though our context acceptor will not do so. */ EncryptionKey subKey = apRep.getSubKey(); if (subKey != null) { context.setKey(Krb5Context.ACCEPTOR_SUBKEY, subKey); /* System.out.println("\n\nSub-Session key from AP-REP is: " + getHexBytes(subKey.getBytes()) + "\n"); */ } Integer apRepSeqNumber = apRep.getSeqNumber(); int peerSeqNumber = (apRepSeqNumber != null ? apRepSeqNumber.intValue() : 0); context.resetPeerSequenceNumber(peerSeqNumber); } public final byte[] encode() throws IOException { byte[] apRepBytes = apRep.getMessage(); byte[] retVal = new byte[2 + apRepBytes.length]; writeInt(Krb5Token.AP_REP_ID, retVal, 0); System.arraycopy(apRepBytes, 0, retVal, 2, apRepBytes.length); return retVal; } }