/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.test;
import java.math.BigInteger;
import java.security.AlgorithmParameters;
import java.security.Provider;
import java.security.SecureRandom;
import java.security.Security;
import java.util.Iterator;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SealedObject;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
/** Tests of the Java Cryptography Extension framework
@author Scott.Stark@jboss.org
@version $Revision$
*/
public class TestJCE
{
static void showProviders() throws Exception
{
Provider[] providers = Security.getProviders();
for(int p = 0; p < providers.length; p ++)
{
Iterator<Object> iter = providers[p].keySet().iterator();
System.out.println("Provider: "+providers[p].getInfo());
while( iter.hasNext() )
{
String key = (String) iter.next();
System.out.println(" key="+key+", value="+providers[p].getProperty(key));
}
}
}
static void testBlowfish() throws Exception
{
KeyGenerator kgen = KeyGenerator.getInstance("Blowfish");
Cipher cipher = Cipher.getInstance("Blowfish");
SecretKey key = null;
int minKeyBits = -1, maxKeyBits = 0;
int minCipherBits = -1, maxCipherBits = 0;
for(int size = 1; size <= 448/8; size ++)
{
int bits = size * 8;
try
{
kgen.init(bits);
key = kgen.generateKey();
if( minKeyBits == -1 )
minKeyBits = bits;
maxKeyBits = bits;
}
catch(Exception e)
{
}
try
{
cipher.init(Cipher.ENCRYPT_MODE, key);
if( minCipherBits == -1 )
minCipherBits = bits;
maxCipherBits = bits;
}
catch(Exception e)
{
}
}
System.out.println("Key range: "+minKeyBits+".."+maxKeyBits);
System.out.println("Cipher range: "+minCipherBits+".."+maxCipherBits);
}
static void testKey() throws Exception
{
int size = 8 * 24;
KeyGenerator kgen = KeyGenerator.getInstance("Blowfish");
kgen.init(size);
SecretKey key = kgen.generateKey();
byte[] kbytes = key.getEncoded();
System.out.println("key.Algorithm = "+key.getAlgorithm());
System.out.println("key.Format = "+key.getFormat());
System.out.println("key.Encoded Size = "+kbytes.length);
Cipher cipher = Cipher.getInstance("Blowfish");
AlgorithmParameters params = cipher.getParameters();
System.out.println("Blowfish.params = "+params);
cipher.init(Cipher.ENCRYPT_MODE, key);
SealedObject msg = new SealedObject("This is a secret", cipher);
SecretKeySpec serverKey = new SecretKeySpec(kbytes, "Blowfish");
Cipher scipher = Cipher.getInstance("Blowfish");
scipher.init(Cipher.DECRYPT_MODE, serverKey);
String theMsg = (String) msg.getObject(scipher);
System.out.println("Decrypted: "+theMsg);
SecureRandom rnd = SecureRandom.getInstance("SHA1PRNG");
BigInteger bi = new BigInteger(320, rnd);
byte[] k2bytes = bi.toByteArray();
SecretKeySpec keySpec = new SecretKeySpec(k2bytes, "Blowfish");
System.out.println("key2.Algorithm = "+key.getAlgorithm());
System.out.println("key2.Format = "+key.getFormat());
System.out.println("key2.Encoded Size = "+kbytes.length);
System.out.println("keySpec.Algorithm = " + keySpec.getAlgorithm());
System.out.println("keySpec.Format = " + keySpec.getFormat());
}
public static void main(String[] args)
{
try
{
System.setOut(System.err);
TestJCE.showProviders();
//tst.testKey();
TestJCE.testBlowfish();
}
catch(Throwable t)
{
t.printStackTrace();
}
}
}