Newsgroups: sci.crypt
+     uunet!mcsun!!!fbihh!
+     bontchev
From: (Vesselin Bontchev)

Subject: Testing random number generators
Sender: (Mr. News)
Organization: Virus Test Center, University of Hamburg
Date: 23 Jun 92 09:17:18 GMT
Lines: 16

When testing the random distribution of the numbers generated by a
random number generator, it is sometimes useful to do a
two-dimensional test. That is, use the consecutively generated random
numbers as pairs of X,Y coordinates and plot a point at these
coordinates. If the generator is truly random, the points must be
distributed uniformly. I have seen at least one RNG which generates
are granular picture - that is the points tend to group into

Vesselin Vladimirov Bontchev           Virus Test Center, University of Hamburg
Tel.:+49-40-54715-224, Fax: +49-40-54715-226       Fachbereich Informatik - AGN
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