Documentation API of the 'umontreal.iro.lecuyer.rng.RandRijndael' Java class
RandRijndael
umontreal.iro.lecuyer.rng

Class RandRijndael

  • All Implemented Interfaces:
    Serializable, Cloneable, CloneableRandomStream, RandomStream


    public class RandRijndaelextends RandomStreamBase
    Implements a RNG using the Rijndael block cipher algorithm (AES) with key and block lengths of 128 bits. A block of 128 bits is encrypted by the Rijndael algorithm to generate 128 pseudo-random bits. Those bits are split into four words of 32 bits which are returned successively by the method nextValue. The unencrypted block is the state of the generator. It is incremented by 1 at every four calls to nextValue. Thus, the period is 2130 and jumping ahead is easy. The values of V, W and Z are 240, 242 and 282, respectively (see RandomStream for their definition). Seeds/states must be given as 16-dimensional vectors of bytes (8-bit integers). The default initial seed is a vector filled with zeros.

    The Rijndael implementation used here is that of the Cryptix Development Team, which can be found on the Rijndael creators' page .

    See Also:
    Serialized Form

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