CS551: Security and Privacy on the Internet, Fall 2000
Problem Sets |
Challenge 1: Jefferson Wheel CiphertextDecrypt the message in http://www.cs.virginia.edu/cs551-security/challenges/message1.txt (to be posted 30 August 2000) which was encoded using a Jefferson wheel with 36 wheels.
Hints revealed on September 12: wheels, extra ciphertext.
Hint revealed on October 9: makekey.c (this is the program I used to generate the encryption key)
The value of a satisfactory solution to this challenge is 100 points (one problem set).
University of Virginia
Department of Computer Science
CS 551: Security and Privacy on the Internet