How would you do that ...

Sandy Harris sandyinchina at
Tue May 4 08:46:37 CEST 2021

Ralph Seichter via Gnupg-users <gnupg-users at> wrote:
> * Stefan Vasilev via Gnupg-users:
> > How would you solve this task?
> With Alice having to rely on cryptography she can do in her head?
> Some shift cipher and carrier pigeons. :-)

Neal Stephenson's novel Cryptonomicon is excellent. I strongly
recommend it to anyone who enjoys reading & is interested in crypto.
Part of the plot involves a cipher that operates a bit like RC-4,
permuting an array, but the array is a deck of cards.

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