Charlie Groves
d40dad55fe
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@6489 542714f4-19e9-0310-aa3c-eee0fc999fb1
97 lines
2.5 KiB
Java
97 lines
2.5 KiB
Java
//
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// $Id$
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//
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// Narya library - tools for developing networked games
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// Copyright (C) 2002-2011 Three Rings Design, Inc., All Rights Reserved
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// http://code.google.com/p/narya/
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package com.threerings.presents.net;
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import java.security.PrivateKey;
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import java.security.PublicKey;
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import com.threerings.presents.util.SecureUtil;
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/**
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* Credentials based on a public key encrypted secret.
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*/
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public class PublicKeyCredentials extends Credentials
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{
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/**
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* No-arg constructor.
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*/
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public PublicKeyCredentials ()
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{
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}
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/**
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* Create a public key credential.
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*/
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public PublicKeyCredentials (PublicKey key)
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{
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_secret = SecureUtil.createRandomKey(16);
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_salt = SecureUtil.createRandomKey(4);
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_encodedSecret = SecureUtil.encryptBytes(key, _secret, _salt);
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_secureVersion = SecureUtil.VERSION;
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}
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/**
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* Returns the secure version the client is using.
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*/
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public int getSecureVersion ()
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{
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return _secureVersion;
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}
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/**
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* Returns the secret.
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*/
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public byte[] getSecret ()
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{
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return _secret;
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}
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/**
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* Decodes the secret.
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*/
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public byte[] getSecret (PrivateKey key)
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{
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if (_secret == null) {
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_secret = SecureUtil.decryptBytes(key, _encodedSecret, _salt);
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}
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return _secret;
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}
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@Override // documentation inherited
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public String getDatagramSecret ()
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{
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return new String(_encodedSecret);
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}
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/** Our transmitted key. */
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protected byte[] _encodedSecret;
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/** Our verification salt. */
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protected byte[] _salt;
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/** Our secure version. */
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protected int _secureVersion;
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/** Our secret key. */
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protected transient byte[] _secret;
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}
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