[kallick-15] - 1 user already solved this challenge.
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.
Click here to get to the corresponding forum topic to share your opinion.
Click here to download the challenge.
Click here to download the additional file of the challenge.