If decryption is successful, the image will be viewable. If answer to question is wrong and decryption is unsuccesful, there will be no "password is wrong" error, but image will not be viewable.

Split the Message into Characters Break the message into individual characters and create a list where each element is one character. Optionally, convert all characters to lowercase or uppercase for ...

Abstract: Single columnar transposition is an encryption technique used in text encryption to produce cipher text which is a permutation of its original text. In this study, cryptanalysis of Single ...

The keys are correct as stated, but instead of numbering duplicate letters from left to right, Agent Madeleine numbered them from right to left. You may want to complete the decryption yourself before ...

This was one of the most secure hand ciphers used in the Second World War. It was used by both the Allies and the Axis, and served both well. Its main weakness was that if the attacker intercepted two ...