Challenge "ASAC — A Strong(er) ADFGVX Cipher — Part 3" ¶
By: admin on July 9, 2016, 7:10 p.m.
This series consists of 5 challenges based on each other. It introduces a new three-step cipher called ASAC, which is a modified version of ADFGVX. Part 3 involves the complete cipher but weakens the third step by using a single-column transposition instead of a double column transposition.