Class ISAACRandom

  • All Implemented Interfaces:
    RandomIntSource, RestorableUniformRandomProvider, UniformRandomProvider

    public class ISAACRandom
    extends IntProvider
    A fast cryptographic pseudo-random number generator.

    ISAAC (Indirection, Shift, Accumulate, Add, and Count) generates 32-bit random numbers. ISAAC has been designed to be cryptographically secure and is inspired by RC4. Cycles are guaranteed to be at least 240 values long, and they are 28295 values long on average. The results are uniformly distributed, unbiased, and unpredictable unless you know the seed.

    This code is based (with minor changes and improvements) on the original implementation of the algorithm by Bob Jenkins.

    Since:
    1.0
    See Also:
    ISAAC: a fast cryptographic pseudo-random number generator, ISAAC (Wikipedia)
    • Constructor Detail

      • ISAACRandom

        public ISAACRandom​(int[] seed)
        Creates a new ISAAC random number generator.
        Parameters:
        seed - Initial seed