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YALE UNIVERSITY
DEPARTMENT OF COMPUTER SCIENCE
CPSC 467a: Cryptography and Computer Security
 
Professor M. J. Fischer
Handout #2
September 20, 2005

Problem Set 1
Due in class on Tuesday, September 27, 2005.
Work each of the following problems from the textbook, Introduction to Cryptography with Coding Theory: Second Edition by Trappe and Washington.. For each problem, show your work and justify your answer, whether or not the question specifically requests this.

Problem 1:   Affine Cipher

Textbook, problem 2.13.2.

Problem 2:   Vigenère Cipher

Textbook, problem 2.13.11.

Problem 3:   Hill Cipher

Textbook, problem 2.13.13.

Problem 4:   LFSR Machine

Textbook, problem 2.13.20.

Problem 5:   Big Numbers

Textbook, problem 2.13.23.

Problem 6:   Entropy

Textbook, problem 15.6.9.



File translated from TEX by TTH, version 3.66.
On 20 Sep 2005, 13:43.