CSC 440 Cryptology

Marcus Schaefer

Office: CDM 749
Winter 2011-2012
Class number: 23742
Section number: 801
M 5:45PM - 9:00PM
LEWIS 01009 Loop Campus


Cryptography is the art of communicating secret messages. This course discusses the basic methods of both cryptography and cryptanalysis, the breaking of codes and ciphers. We will cover classical cryptography (codes, monoalphabetic and polyalphabetic substitution ciphers, transposition ciphers), modern block ciphers (such as DES, AES), public key cryptography (such as RSA), and advanced material as time permits.


Required text: Trappe, Washington: Introduction to Cryptography, Prentice Hall, ISBN: 0131862391 ; 2nd edition (July 15, 2005).
There are several cryptography texts available as e-books at the library web-page for free (you need your campusconnect information to log into the proxy server).


Homework, quizzes: 40%, Midterm: 30%, Final: 30%.


CSC 383 or CSC 393.


Week 1-2
Classical Ciphers (Shift Cipher, Vigenere, Hill Cipher, etc.), Cryptanalysis, Statistics, Mathematical Foundations

Week 3-5
Modern Block Ciphers (DES, AES), and attacks (differential cryptanalysis)

Week 6-8
Public Key Cryptography (DH Key exchange, RSA, ElGamal) and attacks

Week 9-10
Advanced topics (Secret Sharing, Zero-Knowledge Proofs, Error Correcting Codes)

School policies:

Changes to Syllabus

This syllabus is subject to change as necessary during the quarter. If a change occurs, it will be thoroughly addressed during class, posted under Announcements in D2L and sent via email.

Online Course Evaluations

Evaluations are a way for students to provide valuable feedback regarding their instructor and the course. Detailed feedback will enable the instructor to continuously tailor teaching methods and course content to meet the learning goals of the course and the academic needs of the students. They are a requirement of the course and are key to continue to provide you with the highest quality of teaching. The evaluations are anonymous; the instructor and administration do not track who entered what responses. A program is used to check if the student completed the evaluations, but the evaluation is completely separate from the student’s identity. Since 100% participation is our goal, students are sent periodic reminders over three weeks. Students do not receive reminders once they complete the evaluation. Students complete the evaluation online in CampusConnect.

Academic Integrity and Plagiarism

This course will be subject to the university's academic integrity policy. More information can be found at If you have any questions be sure to consult with your professor.

All students are expected to abide by the University's Academic Integrity Policy which prohibits cheating and other misconduct in student coursework. Publicly sharing or posting online any prior or current materials from this course (including exam questions or answers), is considered to be providing unauthorized assistance prohibited by the policy. Both students who share/post and students who access or use such materials are considered to be cheating under the Policy and will be subject to sanctions for violations of Academic Integrity.

Academic Policies

All students are required to manage their class schedules each term in accordance with the deadlines for enrolling and withdrawing as indicated in the University Academic Calendar. Information on enrollment, withdrawal, grading and incompletes can be found at

Students with Disabilities

Students who feel they may need an accommodation based on the impact of a disability should contact the instructor privately to discuss their specific needs. All discussions will remain confidential.
To ensure that you receive the most appropriate accommodation based on your needs, contact the instructor as early as possible in the quarter (preferably within the first week of class), and make sure that you have contacted the Center for Students with Disabilities (CSD) at:
Lewis Center 1420, 25 East Jackson Blvd.
Phone number: (312)362-8002
Fax: (312)362-6544
TTY: (773)325.7296