[3774] in cryptography@c2.net mail archive
Re: Building crypto archives worldwide to foil US-built Berlin Walls
daemon@ATHENA.MIT.EDU (Phil Karn)
Wed Dec 9 16:30:53 1998
Date: Tue, 8 Dec 1998 21:38:39 -0800
From: Phil Karn <karn@homer.ka9q.ampr.org>
To: colin@nyx.net
CC: cryptography@c2.net, pgut001@cs.auckland.ac.nz
In-reply-to: <199812082018.NAA02393@nyx10.nyx.net> (message from Colin Plumb
on Tue, 8 Dec 1998 13:18:02 -0700 (MST))
Reply-to: karn@qualcomm.com
>I've always wanted to set up some secret-sharing filesystem where
>you have to download multiple "shares" to reconstruct the data.
>But other combinations of those exact same shares give other data.
I've also been toying with this idea for a few years. Throw in
Reed-Solomon code, and you can make a fault-tolerant network where you
need only K servers out of N to reconstruct the data, but less than K
are insufficient. I have written fast RS code -- it's on my website,
http://people.qualcomm.com/karn/dsp.html.
Phil
