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JVM AOT compiler currently generating JavaScript, C++, Haxe, with initial focus on Kotlin and games.

There is a newer version: 0.6.8

/*
 * Copyright 2016 Carlos Ballesteros Velasco
 *
 * 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 java.security;

import com.jtransc.JTranscBits;
import com.jtransc.crypto.JTranscCrypto;

public class SecureRandom extends java.util.Random {
	public SecureRandom() {
		super(0);
	}

	public SecureRandom(byte seed[]) {
		super(0);
	}

	@Override
	public void nextBytes(byte[] bytes) {
		JTranscCrypto.fillSecureRandomBytes(bytes);
	}

	private byte[] temp = new byte[4];

	@Override
	protected int next(int bits) {
		JTranscCrypto.fillSecureRandomBytes(temp);
		return JTranscBits.makeInt(temp) & JTranscBits.mask(bits);
	}

	/*
	public native static SecureRandom getInstance(String algorithm) throws NoSuchAlgorithmException;

	public native static SecureRandom getInstance(String algorithm, String provider) throws NoSuchAlgorithmException, NoSuchProviderException;

	public native static SecureRandom getInstance(String algorithm, Provider provider) throws NoSuchAlgorithmException;

	public native final Provider getProvider();

	public native String getAlgorithm();

	synchronized public native void setSeed(byte[] seed);

	public native void setSeed(long seed);

	synchronized native public void nextBytes(byte[] bytes);

	public native static byte[] getSeed(int numBytes);

	public native byte[] generateSeed(int numBytes);
	*/
}