University of Virginia, Department of Computer Science
CS588: Cryptology - Principles and Applications, Spring 2005

Lectures | Problem Sets | Challenges | Forum

Challenge 1: Jefferson Wheel Ciphertext

Jefferson Wheel Cipher

Decrypt the message in which was encoded using a Jefferson wheel cipher with 26 wheels.

The message was encrypted by taking groups of 26 letters, turning the wheels to align the plaintext, and then selecting a random row along the wheels as the ciphertext.

The value of a satisfactory solution to this challenge is 100 points (one problem set).

Solving the 2001 Jefferson Wheel Challenge (by Geoff Stoker)

Note: you are free to use this information (as well as the linked code) in any way you wish.

CS 655 University of Virginia
Department of Computer Science
CS 588: Cryptology - Principles and Applications