Challenge "Weakened Handycipher — Part 4" ¶
By: admin on June 28, 2016, 8:08 p.m.
The Weakened Handycipher challenges serve as an exercise and use an intentionally weakened version of Handycipher. Part 4 is the same as Part 1, but uses an improved version of the cipher. You are given the first 1,009 characters of the plaintext, and some partial information about the key.