Smack/smack-core/src/main/java/org/jivesoftware/smack/util/RandomUtils.java

37 lines
1.1 KiB
Java

/**
*
* Copyright © 2019 Paul Schaub
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smack.util;
import java.security.SecureRandom;
public class RandomUtils {
private static final SecureRandom SECURE_RANDOM = new SecureRandom();
/**
* Generate a securely random byte array.
*
* @param len length of the byte array
* @return byte array
*/
public static byte[] secureRandomBytes(int len) {
byte[] bytes = new byte[len];
SECURE_RANDOM.nextBytes(bytes);
return bytes;
}
}