зеркало из https://github.com/mozilla/gecko-dev.git
92 строки
3.4 KiB
Java
92 строки
3.4 KiB
Java
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Netscape Security Services for Java.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998-2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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import org.mozilla.jss.*;
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import org.mozilla.jss.crypto.*;
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/**
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* A command-line utility for generating PQG parameters for DSA
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* Key operations. Can be used for testing.
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* Takes the keysize as the sole argument.
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*/
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public class PQGGen {
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public static void main(String args[]) {
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int size;
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PQGParams pqg;
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try {
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if(args.length != 1) {
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throw new Exception("Usage: java PQGGen <keysize>");
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}
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size = Integer.parseInt(args[0]);
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System.out.println("Generating PQG parameters for "+size+
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"-bit keypairs. This could take hours...");
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CryptoManager.initialize(".");
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pqg = PQGParams.generate(size);
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System.out.println("Generated PQG Parameters.");
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System.out.println("Verifying PQG Parameters. "+
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"This could take a few minutes...");
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if( ! pqg.paramsAreValid() ) {
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throw new Exception("ERROR: Generated parameters are invalid.");
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}
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System.out.println("Parameters are valid!");
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System.out.println("P: "+pqg.getP());
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System.out.println("Q: "+pqg.getQ());
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System.out.println("G: "+pqg.getG());
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System.out.println("H: "+pqg.getH());
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System.out.println("seed: "+pqg.getSeed());
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System.out.println("counter: "+pqg.getCounter());
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} catch(NumberFormatException e) {
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System.err.println("Invalid key size: "+e);
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} catch(PQGParamGenException e) {
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System.err.println(e);
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} catch(java.security.InvalidParameterException e) {
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System.err.println("Invalid key size: "+e);
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} catch(Exception e) {
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System.err.println(e);
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}
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}
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}
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