GESG Identity-Based Public Key Cryptography (ID-PKC)

Adam Back adam at
Thu Aug 2 20:28:59 EDT 2001

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:

particulary section 1.3.  An ID based PKC system can be used to build a
non-interactive forward secure communications scheme.


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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