Re: about an elegant variant of Diffie Hellman key exchange algorithm

Sylvain wrote:
> Inside the book "applied Cryptography" (page 515 chapter Key exchange
> Algorithms) Bruce Schneier mentions a public-key distribution algorithm
> which has
> the advantage over Diffie-Hellman that the secret k can be computed
> before any interaction. Even Mr Schneier has no idea where he'd find it
> at this point.

I think you're talking about DHAES and the "Ephemeral Key". If so, you
can find a paper describing it at:

http://citeseer.ist.psu.edu/231324.html

This is not the paper you are requesting below, but the "ephemeral
key", and consequently the shared secret, can be computed by one side
before the exchange begins.

>
> E. Hughes, "An Encrypted Key Transmission Protocol," presented at the
> rump session of CRYPTO 94, Aug. 1994."
>
> I can this article!! Someone know where I can get this rarity...
>
> Sylvain
Received on Thu Sep 29 21:39:32 2005