[52732] in cryptography@c2.net mail archive

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Re: handling weak keys using random selection and CSPRNGs

daemon@ATHENA.MIT.EDU (Marcos el Ruptor)
Sat Oct 14 18:31:42 2006

X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
From: "Marcos el Ruptor" <Ruptor@cryptolib.com>
To: "Cryptography" <cryptography@metzdowd.com>
Date: Sat, 14 Oct 2006 05:22:00 +0200

> The only things that it usually passes as good are for-purpose random
> number generators' or ciphers' outputs. Everything else (including a
> terabyte of RC4 output, executables, zip archives, jpegs, mpegs,
> mp3s, ...) that I've pointed it at, fails one or more of the tests.

Have you tried removing the headers and trailing data?

> True random-looking-ness is hard to find... :-)

Since when? There are plenty of easy ways to generate it. Many compressed 
files will also pass your randomness tests if you test only the compressed 
data itself, not the whole files.

Ruptor 


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