[144386] in cryptography@c2.net mail archive
Re: CSPRNG algorithms
daemon@ATHENA.MIT.EDU (William Soley)
Fri May 1 15:27:58 2009
In-Reply-To: <20090313191615.GC15102@subspacefield.org>
From: William Soley <William.Soley@Sun.COM>
Date: Fri, 1 May 2009 02:01:06 -0700
To: Cryptography <cryptography@metzdowd.com>
On Mar 13, 2009, at 12:16 PM, Travis wrote:
> [...] would people like to help me create one by
> emailing me references to extant PRNG definitions?
This paper describes the architecture of a prototype I built at Sun
back in 1995 for a random number generating service that ran in user
land. It went through a couple revisions, and eventually got ported
to the kernel in Solaris 10.
<http://wikis.sun.com/download/attachments/100794535/CryptoRand-
Soley96.pdf>
The revisions since the paper were fairly minor: using a bigger
entropy pool, improving the entropy estimation algorithm, and
tweaking the bleed function. I am not sure what changes were made
when it was ported to the kernel as I was not directly involved.
Unfortunately, the details of the revisions are only documented in
the source code.
Kind regards,
-Bill
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