Link: Copy link
My proposal was to use columns of substitution alphabets that are all (pseudo-) random. That scheme may not be simple to crack in my humble view, since the new key characters are not autokeys (they are the ciphertext characters that get once more processed, i.e. encrypted, in the same columns of processing.)jdege wrote:The usual forms of auto-keyed Vigs only have the appearance of "avalanche".
It's one of those things that appears to increase complexity, without actually doing much.
Access to the link brought error.keltia wrote:As I told moshe on Usenet, here is my implementation in Ruby if the Chaocipher system. You will also find implementation of several other oldish systems in the library (a work in progress).
old-crypto home page
Juts read the setup topic by james, congratulations for the investigation!