NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Randomness Testing of the Advanced Encryption Standard Candidate Algorithms
Published
Author(s)
Juan Soto
Abstract
One of the criteria used to evaluate the Advanced Encryption Standard candidate algorithms was their demonstrated suitability as random number generators. That is, the evaluation of their output utilizing statistical tests should not provide any means by which to computationally distinguish them from a truly random source. This internal report lists several characteristics which an encryption algorithm exhibiting random behavior should possess, describes how the output for each candidate algorithm was evaluated for randomness, discusses what has been learned utilizing the NIST statistical tests, and finally provides an interpretation of the results.
Soto, J.
(1999),
Randomness Testing of the Advanced Encryption Standard Candidate Algorithms, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.6390
(Accessed October 16, 2025)