[FoRK] Re: identity-based encryption

Justin Mason jm at jmason.org
Mon Feb 9 09:53:02 PST 2004


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Meltsner, Kenneth writes:
> Interesting stuff, although I suspect it's protected by patents (or
> patents pending).  The problem of identifying a given user to the key
> server is glossed over, and I'm not sure whether the typical encryption
> fan will appreciate the "inherent key escrow" provided by IBE.

Yeah, I got that impression too.   Mind you, I don't see connection
between the Stanford group (below) and PGP corp, so maybe there's
not serious patent issues.   here's the URLs:

- - http://rooster.stanford.edu/~ben/pubs/ipibe.pdf ('Minimal-Overhead IP
  Security using Identity Based Encryption', a good practical intro)

- - http://crypto.stanford.edu/ibe/ (their homepage)

It does look nifty -- although it means you don't get rid of a PKI,
instead you now need a *Private* Key Infrastructure ;)

- --j.
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