Open Hardware

Matthew Astley lists-ukcrypto at fruitcake.demon.co.uk
Sun, 15 Sep 2002 10:55:31 +0100


On Sun, Sep 15, 2002 at 10:21:13AM +0100, Matthew Byng-Maddick wrote:
> On Sat, Sep 14, 2002 at 10:18:51PM +0100, Matthew Astley wrote:
> > I see a niche market for a public key algorithm that can be
> > implemented with a deck of cards. IANAC but that sounds like a tall
> > order!
> >   http://www.counterpane.com/solitaire.html
> 
> It's not public key, and it has had weaknesses.
> http://www.ciphergoth.org/crypto/solitaire/ is a starting point.

Yes, sorry I should have phrased that more carefully - there is a gap
in the "market" because Solitaire is a symmetric stream cipher.

The fact remains that even if there were a secure signing algorithm
that a human can execute reliably, the volume of data that you need to
put through it is simply too big.


Matthew  #8-)