/**
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2006 Sun Microsystems Inc. All Rights Reserved
*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the License). You may not use this file except in
* compliance with the License.
*
* You can obtain a copy of the License at
* https://opensso.dev.java.net/public/CDDLv1.0.html or
* opensso/legal/CDDLv1.0.txt
* See the License for the specific language governing
* permission and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* Header Notice in each file and include the License file
* at opensso/legal/CDDLv1.0.txt.
* If applicable, add the following below the CDDL Header,
* with the fields enclosed by brackets [] replaced by
* your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* $Id: EncryptionKeyGenerator.java,v 1.3 2008/06/25 05:51:29 qcheng Exp $
*
*/
package com.sun.identity.install.tools.util;
import java.security.SecureRandom;
public class EncryptionKeyGenerator {
public static String generateRandomString() {
String randomStr = null;
String str_provider = System.getProperty(STR_PROVIDER_PROPERTY_NAME,
STR_PROVIDER_DEFAULT_VALUE);
try {
byte[] bytes = new byte[24];
SecureRandom random = SecureRandom.getInstance(STR_SHA_ALGO,
str_provider);
random.nextBytes(bytes);
randomStr = Base64.encode(bytes).trim();
} catch (Exception ex) {
Debug.log("EncryptionKeyGenerator.generateRandomNumber() : threw "
+ "exception : ", ex);
}
return randomStr;
}
public static String STR_SHA_ALGO = "SHA1PRNG";
public static String STR_PROVIDER_DEFAULT_VALUE = "SUN";
private static final String STR_PROVIDER_PROPERTY_NAME =
"amRandomGenProvider";
}