CS255: Introduction to Cryptography

Introduction to Cryptography

Winter 2023

Cryptography is an indispensable tool for protecting information in computer systems. This course explains the inner workings of cryptographic primitives and how to use them correctly.


Course syllabus (and readings)
Course overview (grading, textbooks, coursework, exams)
Lectures: Monday, Wednesday, 1:30-2:50pm, Gates B01
Sections: Friday, 4:30-5:20pm, room 160-B40.
Questions for CAs: cs255ta@cs.stanford.edu or use Ed Discussion
Videos: cs255 online   (for video lectures and slides covering the material in class)


All homework submission is to be done via Gradescope. Please use course code PX6887 to sign up. Note that Gradescope requires that the solution to every problem start on a new page.

Homework #1:   [html]
Due: Jan. 17
Homework #2:   [pdf]
Due: Feb. 7
Homework #3:   not out yet
Due: Feb. 21
Homework #4:   not out yet
Due: Mar. 15


Project #1 (password manager):   pdf   starter code
Due: Tue., Feb. 14, 11:59pm
Project #2 (chat client):   not out yet
Due: Tue., March 7, 11:59pm