io.netty.handler.ssl.util.ThreadLocalInsecureRandom Maven / Gradle / Ivy
/*
* Copyright 2014 The Netty Project
*
* The Netty Project licenses this file to you 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:
*
* https://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 io.netty.handler.ssl.util;
import io.netty.util.internal.PlatformDependent;
import java.security.SecureRandom;
import java.util.Random;
/**
* Insecure {@link SecureRandom} which relies on {@link PlatformDependent#threadLocalRandom()} for random number
* generation.
*/
final class ThreadLocalInsecureRandom extends SecureRandom {
private static final long serialVersionUID = -8209473337192526191L;
private static final SecureRandom INSTANCE = new ThreadLocalInsecureRandom();
static SecureRandom current() {
return INSTANCE;
}
private ThreadLocalInsecureRandom() { }
@Override
public String getAlgorithm() {
return "insecure";
}
@Override
public void setSeed(byte[] seed) { }
@Override
public void setSeed(long seed) { }
@Override
public void nextBytes(byte[] bytes) {
random().nextBytes(bytes);
}
@Override
public byte[] generateSeed(int numBytes) {
byte[] seed = new byte[numBytes];
random().nextBytes(seed);
return seed;
}
@Override
public int nextInt() {
return random().nextInt();
}
@Override
public int nextInt(int n) {
return random().nextInt(n);
}
@Override
public boolean nextBoolean() {
return random().nextBoolean();
}
@Override
public long nextLong() {
return random().nextLong();
}
@Override
public float nextFloat() {
return random().nextFloat();
}
@Override
public double nextDouble() {
return random().nextDouble();
}
@Override
public double nextGaussian() {
return random().nextGaussian();
}
private static Random random() {
return PlatformDependent.threadLocalRandom();
}
}