[9107] in cryptography@c2.net mail archive
Re: GESG Identity-Based Public Key Cryptography (ID-PKC)
daemon@ATHENA.MIT.EDU (Adam Back)
Fri Aug 3 14:26:31 2001
Date: Thu, 2 Aug 2001 20:28:59 -0400
From: Adam Back <adam@cypherspace.org>
To: Amir Herzberg <AMIR@newgenpay.com>
Cc: cryptography@wasabisystems.com
Message-ID: <20010802202859.A6553@economists.cryptohill.net>
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In-Reply-To: <078EE8822DCFD411AAA1000629D56ADC0B7E01@IMP01>; from Amir Herzberg on Wed, Aug 01, 2001 at 12:10:09PM +0300
ID based PKC systems have another application which is very useful:
non-interactive forward secrecy. Ross Anderson has a nice write up of the
equivalence here:
http://www.cl.cam.ac.uk/ftp/users/rja14/forwardsecure.pdf
particulary section 1.3. An ID based PKC system can be used to build a
non-interactive forward secure communications scheme.
Adam
On Wed, Aug 01, 2001 at 12:10:09PM +0300, Amir Herzberg wrote:
> ID based public key is not a new concept, I believe first proposed by Adi
> Shamir in Crypto 84 (the first I attended :-). It's a cute concept, but I'm
> skeptic about its practical value - except of course as a way to force
> parties to use private keys known to authorities :-(
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