CS 7880 - Special Topics in Cryptography, Fall 2020

Course Description

The course will cover various advanced topics in cryptography, at the forefront of current research. One of the main themes will be secure computation over encrypted data, but we will explore other topics as well.

Logistic: Tuesdays 12- 1:40, Thursdays 2:50 - 4:30 pm

Online over Zoom.

Prerequisites: We will assume basic knowledge of crypto at the level of an undergrad crypto course. For example, we assume students have familiarity with one way functions, symmetric and public key encryption, reduction-based proofs of security. If you are unfamiliar with some of these topics, it may still be possible to take the course with some additional self-learning to catch up.


Each registered student needs to prepare one lecture for the course.
Discuss with the instructor to come up with a topic and the paper(s) to cover for the lecture.

Preliminary List of Topics


Class/Date Topic Covered Resources Video, Notes
9/15/20 Learning with Errors (LWE), Regev Encryption MIT Course Notes video
9/17/20 Fully Homomorphic Encryption from Ground Up Eurocrypt19 Talkvideo, notes
9/22/20 Gentry-Sahai-Waters (GSW) FHE MIT Couse Notes, Simons Videovideo, notes
9/24/20 Bootstrapping, Fully Homomorphic Signatures paper 1, paper 2video1,video2, notes, slides
9/29/20 Attribute-Based Encryption (Part 1) paper video, notes
10/2/20 Attribute-Based Encryption (Part 2) video, notes
10/6/20 Functional Encryption and Garbled Circuits GC notes video, notes
10/8/20 Succinct FE and Laconic Function Evaluation Succinct FE, LFE video, notes slides
10/13/20 Multi-Key FHE Multi-Key FHE, Spooky FHE video,slides
10/15/20 Function Secret Sharing (Distributed Point Functions, 2-Server PIR) paper video, notes
10/20/20 Homomorphic Secret Sharing from DDH paper video, notes
10/22/20 Correlation Generators from LPN paper video, notes
10/27/20 Obfuscation (Definitions, Applications) video , notes
10/29/20 Compute-and-Compare Obfuscation paper video, slides
10/30/20 (Special Date) MIT Seminar on candidate IO from LWE samplingpapervideo
11/3/20No Class, GO VOTE.
11/5/20IO from Functional Enc and XIOLPST1 LPST2 BV BNPWvideo, notes
11/10/20ORAMhierarchical ORAM, path ORAMvideo, notes
11/12/20ORAM Lower Bound papervideo, notes
11/17/20No Class (TCC)
11/19/20Doubly Efficient PIRpaper1, paper2, FHE for RAMvideo, notes
11/24/20Cryptography from Anonymitypapervideo, slides
11/26/20No Class (Thanksgiving)
12/1/20Proofs of Sequential Work and Verifiable Delay Functions (VDFs)paper1paper2 paper3video
12/3/20Efficient MPC via SPDZpapervideo
12/8/20Laconic OT and IBE from Diffie-Hellmanpapervideo
12/10/20Simons Workshop on Obfuscationlink

Suggested Projects


The following textbook is useful as a reference: Simons Workshop
Introduction to Modern Cryptography by Katz and Lindell.
Other useful resources include:
Graduate Crypto Book by Dan Boneh and Victor Shoup.
Lecture Notes by Rafael Pass and Abhi Shelat.
Lecture notes by Yevgeniy Dodis
Lecture notes by Chris Peikert
Lecture notes by Boaz Barak.
Slides by Stefan Dziembowski.
Slides,Notes by Gil Segev.