Challenge "Extended Handycipher — Part 4" ¶
By: admin on June 28, 2016, 8:02 p.m.
Extended Handycipher is an enhancement of Handycipher. Part 4 is the same as Part 1, but uses an improved version of the cipher. You are given three encryptions of the plaintext generated with the same key, and the first 229 characters of the plaintext.