[14756] in cryptography@c2.net mail archive
Re: XML-proof UIDs
daemon@ATHENA.MIT.EDU (Tim Dierks)
Sun Nov 16 15:38:06 2003
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Sun, 16 Nov 2003 10:30:33 -0500
To: Eugen Leitl <eugen@leitl.org>, cryptography@metzdowd.com
From: Tim Dierks <tim@dierks.org>
In-Reply-To: <20031114105251.GD922@leitl.org>
At 05:52 AM 11/14/2003, Eugen Leitl wrote:
>Does anyone have robust code to generate globally unique IDs which won't
>break XML parsing,
>and work on several platforms?
>
>I was thinking of using an entropy pool to seed a cryptographic PRNG, used to
>generate a sequence of SHA-1 hashes, dumped to an XML-armored representation.
This is what GUIDs/UUIDs were designed for, and they're used broadly.
They're standardized in ISO 11578 [1], although there's a very similar
public description in an expired Internet Draft [2]. Microsoft also
publishes a description of how they generate their GUIDs, but I can't find
it right now.
- Tim
[1]
http://www.iso.ch/iso/en/CatalogueDetailPage.CatalogueDetail?CSNUMBER=2229&ICS1=35&ICS2=100&ICS3=70
[2]
http://www.ics.uci.edu/~ejw/authoring/uuid-guid/draft-leach-uuids-guids-01.txt
PS - I'm looking for a full-time job. My resume is at
http://www.dierks.org/tim/resume.html . Looking for architecture or
technical management jobs; I'm in New York, NY, but I am willing to relocate.
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