/**
* Returns the SecureRandom used to generate secure random data.
*
* <p>Creates and initializes if null. Uses {@code System.currentTimeMillis() +
* System.identityHashCode(this)} as the default seed.
*
* @return the SecureRandom used to generate secure random data, wrapped in a {@link
* RandomGenerator}.
*/
private RandomGenerator getSecRan() {
if (secRand == null) {
secRand = RandomGeneratorFactory.createRandomGenerator(new SecureRandom());
secRand.setSeed(System.currentTimeMillis() + System.identityHashCode(this));
}
return secRand;
}
/**
* Reseeds the random number generator with {@code System.currentTimeMillis() +
* System.identityHashCode(this))}.
*/
public void reSeed() {
getRandomGenerator().setSeed(System.currentTimeMillis() + System.identityHashCode(this));
}
/**
* Sets the default generator to a {@link Well19937c} generator seeded with {@code
* System.currentTimeMillis() + System.identityHashCode(this))}.
*/
private void initRan() {
rand = new Well19937c(System.currentTimeMillis() + System.identityHashCode(this));
}
/**
* Reseeds the secure random number generator with the current time in milliseconds.
*
* <p>Will create and initialize if null.
*/
public void reSeedSecure() {
getSecRan().setSeed(System.currentTimeMillis());
}