How would you do that ...

Robert J. Hansen rjh at
Tue May 4 17:57:22 CEST 2021

> 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.

Please don't.  Solitaire is not a particularly well-designed cipher, in 
either the human factors sense or in the cryptographic strength sense. 
Even Schneier himself says it's mostly of interest only as a curiosity 
and not for serious purposes.

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