edu.rit.clu.monte
Class AesTestClu

java.lang.Object
  edu.rit.clu.monte.AesTestClu

public class AesTestClu
extends Object

Class AesTestClu is a cluster parallel program that tests the randomness of the AES block cipher.

Usage: java -Dpj.np=K edu.rit.clu.monte.AesTestClu key N
K = Number of parallel processes
key = Block cipher key
N = Number of blocks

The program:

• Initializes the AES block cipher with the key.
• Generates N ciphertext blocks by encrypting the plaintext blocks 0, 1, 2, and so on (counter mode).
• Takes the most significant halves of the 128-bit ciphertext blocks as a series of 64-bit long values.
• Divides the long values by 2⁶⁴, yielding a series of supposedly-random double values in the range 0.0 to 1.0.
• Performs a Kolmogorov-Smirnov (K-S) test on the data to try to disprove the null hypothesis that the data are drawn from a uniform distribution.
• Prints the K-S statistic and the p-value.

The computation is performed in parallel in multiple processors. The program measures the computation's running time.

Method Summary

static void

main(String[] args) Main program.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

main

public static void main(String[] args)
                 throws Exception

Main program.

Throws:

Exception