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Date:      Sun, 02 Feb 2003 19:47:12 +0100
From:      phk@freebsd.org
To:        Mark Murray <mark@grondar.org>
Cc:        "Andrey A. Chernov" <ache@nagual.pp.ru>, current@freebsd.org
Subject:   Re: rand() is broken 
Message-ID:  <32212.1044211632@critter.freebsd.dk>
In-Reply-To: Your message of "Sun, 02 Feb 2003 18:36:02 GMT." <200302021836.h12Ia2aX049696@grimreaper.grondar.org> 

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In message <200302021836.h12Ia2aX049696@grimreaper.grondar.org>, Mark Murray wr
ites:

>We have most of this, and RC4 can deliver. RC4's "licence" is
>fine. Call it "ArCFour" and there is no problem. The code is
>small, fast and repeatable, and meets conditions 1-4 above.

There are some concerns about RC4's strength and predictability.

In cases were we just want trivial "randomness", this doesn't matter,
but when we start to seed it with /dev/random to get good randomness
we to be more careful.

Maybe we should spend an AES on it, just in case ?

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

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