Department of Computer Science
CS 551: Security and Privacy on the Internet
evans@virginia.edu
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CS551: Security and Privacy on the Internet, Fall 2000
Lectures |
Manifests |
Problem Sets |
Projects |
Midterm |
Final |
Resources |
Syllabus |
Challenges |
Calendar
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Challenge 1: Jefferson Wheel Ciphertext
Decrypt 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).
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University of Virginia Department of Computer Science CS 551: Security and Privacy on the Internet |
David Evans evans@virginia.edu |