Hacker News new | ask | show | jobs
by Analemma_ 3613 days ago
You're right, it looks like my scheme is equivalent to a Vignère cypher with "ABCDEFGHIJKLMNOPQRSTUVWXYZ" as the key, with the weaknesses thereof. Thanks!
1 comments
bdr 3613 days ago
You might be interested to read "Cryptanalysis: A Study of Ciphers and Their Solution", a 1939 (!) book by Helen Fouché Gaines. It covers a lot of these kinds of variants.
link