phc-discussions - Re: [PHC] Mechanical tests (was: POMELO fails the dieharder tests)

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Message-ID: <28926.1396717072@critter.freebsd.dk>
Date: Sat, 05 Apr 2014 16:57:52 +0000
From: "Poul-Henning Kamp" <phk@....freebsd.dk>
To: discussions@...sword-hashing.net,
        "Dennis E. Hamilton" <dennis.hamilton@....org>
Subject: Re: [PHC] Mechanical tests (was: POMELO fails the dieharder tests)

In message <004301cf50ed$f0834640$d189d2c0$@....org>, "Dennis E. Hamilton" writ
es:

>However, I am suspicious of the gzip usage, especially for short =
>messages and possibly-shorter hashes.

I should have said that I intended to run a couple of million
test-cases for that test.

Yes, almost all compressors suck at small data.

>In short, a compressibility anomaly might raise a flag for further =
>scrutiny, [...]

That was my aim:  To spot things which are not as they should be,
because of designflaws or code-flaws.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@...eBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.