CS 333         Applied Cryptography

Course Description

This course provides a systematic study of cryptography and its application. It covers cryptographic algorithms, including symmetric-key cryptography, public-key cryptography, cryptanalysis, cryptographic hash functions, and their usage toward message authentication codes, digital signatures, key management and distribution, and user authentication protocols. This course further covers structures, algorithms, methods, and systems that apply cryptographic methods, including how real-world needs and applications drive the design of cryptosystems and how real-life breaches with common cryptosystems may occur.

Instructor

Joe Li, yingjiul@uoregon.edu

Lectures and Labs

Two 80-minute lectures are delivered each week. Crypto tools and demos are included in the lectures.

Prerequisites

• CIS 212 - Computer Science III

Textbooks and Readings

• (Required) Introduction to Modern Cryptography 2e by Katz and Lindell. ISBN 9781466570269. A PDF version is available on Canvas.

Major Topics

• Symmetric key cryptography: 6 lectures
• Public key cryptography: 8 lectures
• Message authentication codes: 2 lectures
• Hash functions: 2 lectures

Expected Learning Outcomes

This course covers the basic concepts and practices of applied cryptography. The primary topics are familiarity with symmetric key cryptography, public key cryptography, message authentication codes and hash functions.

Upon successful completion of the course, students will be able to:

• Understand the basic purposes and principles of cryptography, classic cipher, and perfect cipher.
• Understand the basic concepts of symmetric-key cryptography, including the definitions of security, stream cipher, block cipher, DES, 3DES, AES, and block cipher modes; know how to use Cryptool and Openssl to perform symmetric-key cryptographic operations.
• Understand the basic concepts of public-key cryptography, including number theory basics, public key encryption and decryption, digital signature, and PKI operations. Know how to use Cryptool and Openssl to perform public-key cryptographic operations.
• Understand how cryptography is used in message authentication codes, digital signatures, and key management and distribution.
• Become familiar with how different cryptographic methods are used in various real-world applications; and
• Explain how some cryptosystem breaches occur.

Acquired Skills

Upon successful completion of the course, students will have acquired the following skills:

• be able to perform symmetric-key encryption and decryption operations in ECB mode and CBC mode;
• be able to generate RSA keys and perform RSA encryption and decryption;
• be able to generate and verify digital signatures and use public key certificates; and
• be able to perform standard hash operations and use message authentication codes for message integrity check.

Course Requirements and Grading

This REMOTE course will be taught entirely using Zoom and Canvas.

Grading will be based on the following criteria:

Percentage	Component
30	Hands-on exercises
10	Class participation
30	midterm exam
30	final exam

Grading Scale

A	A+ >= 97.00	A 94.00-96.99	A- 90.00-93.99
B	B+ 87.00-89.99	B 84.00-86.99	B- 80.00-83.99
C	C+ 77.00-79.99	C 74.00-76.99	C- 70.00-73.99
D	D+ 67.00-69.99	D 64.00-66.99	D- 61.00-63.99
F	F 0.00-60.99