Sebastian Angel
Raj and Neera Singh Assistant Professor
Levine Hall, Office 604
3330 Walnut Street
Philadelphia, PA 19104
I'm an assistant professor of Computer and Information Science at Penn and a senior researcher at Microsoft Research.
At Penn, I'm part of the Distributed Systems Laboratory, the Security and Privacy Laboratory, and The Warren Center for Network and Data Sciences. I'm the recipient of an NSF CAREER Award, a JPMorgan Faculty Award, the ACM SIGOPS Dennis M. Ritchie Dissertation Award, and the Bert Kay Best Dissertation Award.
I'm broadly interested in systems, security, privacy, and networking. My work aims to:
- Understand how the systems that we use today leak information and what we can do to remedy this situation.
- Bring accountability to online services by forcing these service to prove that they are doing the right thing.
- Build abstractions and frameworks that simplify the development of concurrent and fault-tolerant applications.
Courses
- CIS 331 Introduction to networks and security: Fall 2023, Fall 2019
- CIS 551 Computer and network security (online): Summer 2023, Fall 2022, Summer 2022, Spring 2022, Fall 2021
- CIS 551 Computer and network security: Fall 2020
- CIS 700 Advanced topics in privacy and anonymity: Spring 2021, Spring 2019
- CIS 700 Privacy enhancing technologies: Spring 2020
Students (see alumni)
- Eleftherios Ioannidis (PhD, co-advised with Steve Zdancewic)
- Yiping Ma (PhD, co-advised with Tal Rabin)
- Elizabeth Margolin (PhD)
- Jess Woods (PhD)
- Haoran Zhang (PhD, co-advised with Vincent Liu)
- Ke Zhong (PhD)
Conference Organization
Recent publications (see all)
Nimble: Rollback Protection for Confidential Cloud Services
OSDI 2023, Boston, MA, July 2023. [abstract, paper, extended report, code]
Flamingo: Multi-Round Single-Server Secure Aggregation with Applications to Private Federated Learning
S&P 2023, San Francisco, CA, May 2023. [abstract, paper, extended report, code]
Addax: A fast, private, and accountable ad exchange infrastructure
NSDI 2023, Boston, MA, April 2023. [abstract, paper, code]
Executing Microservice Applications on Serverless, Correctly
POPL 2023, Boston, MA, January 2023. [abstract, paper, code]
Ibex: Privacy-preserving ad conversion tracking and bidding
CCS 2022, Los Angeles, CA, November 2022. [abstract, paper, extended report, code]
Efficient Representation of Numerical Optimization Problems for SNARKs
USENIX Security 2022, Boston, MA, August 2022. [abstract, paper, extended report, code]
Incremental Offline/Online PIR
USENIX Security 2022, Boston, MA, August 2022. [abstract, paper, extended report, code]
Optimizing Data-intensive Systems in Disaggregated Data Centers with TELEPORT
SIGMOD 2022, Philadelphia, PA, June 2022. [abstract, paper]
Rolis: a software approach to efficiently replicating multi-core transactions
EuroSys 2022, Rennes, France, April 2022. [abstract, paper, code]
Funding
My lab at Penn is generously funded by:
