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Analysis of Solitaire Cipher (arxiv.org)
37 points by howard941 36 days ago | hide | past | web | favorite | 4 comments



Comments from Solitaire's author, Bruce Schneier:

> I don't talk about it much, mostly because I made a dumb mistake that resulted in the algorithm not being reversible. Still, for the short message lengths you're likely to use a manual cipher for, it's still secure and will likely remain secure.

https://www.schneier.com/blog/archives/2019/10/more_cryptana...



Chao cipher is nicer...

Here is my implementation of chaocipher in arc lisp https://rosettacode.org/wiki/Chaocipher#Arc


Chaocipher is thoroughly broken (see the citations on Wikipedia[1]) so it's not really comparable to Schneier's algorithms.

[1] https://en.wikipedia.org/wiki/Chaocipher




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