From: rja14@cl.cam.ac.uk (Ross Anderson)
Subject: Re: Clipper chip -- technical details
Nntp-Posting-Host: ely.cl.cam.ac.uk
Organization: U of Cambridge Computer Lab, UK
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In article <1993Apr19.052005.20665@ulysses.att.com> smb@research.att.com (Steven 
Bellovin) writes:

> Nothing was said about where K_P comes from.

If you've got a secure device, you don't need public keys.

If the secret key which all chips share is SK, you can just use KP = 
E{(myname, yourname, date) ; SK}.

Maybe that's why Jim Bidzos was reported as being cheesed off.

Ross
