Security and Cryptography

Welcome to the web page for security and cryptography research in the Department of Computer Science and Engineering at the University of California at San Diego. Our group conducts research in areas spanning from theory to practice: we work on the theoretical foundations of cryptography; the development and analysis of cryptographic protocols and algorithms; and on applied cryptography, systems security, and network security. In line with our broad security-related research interests, we are affiliated and actively collaborate with the Theory Group, Programming Systems and the Systems and Networking Group here at UCSD.

People  |   News  |   Publications  |   Sponsors
Faculty
Mihir Bellare
Earlence Fernandes
Nadia Heninger
Russell Impagliazzo
Daniele Micciancio
Imani Munyaka
Stefan Savage
Aaron Schulman
Alex C. Snoeren
Deian Stefan
Geoffrey M. Voelker
Affiliated Faculty
kc claffy
Kamalika Chaudhuri
Ranjit Jhala
Ryan Kastner
Sorin Lerner
Nadia Polikarpova
Steven Swanson
Dean Tullsen
Yiying Zhang
Yuanyuan Zhou
Adjunct Faculty
Kirill Levchenko Hovav Shacham
Scientists, Postdocs and Research Staff
Daniel Moghimi Cindy Moore
PhD Students
Nishant Bhaskar
Alex Bellon
Hannah Davis
Evan Johnson
Enze Alex Liu
Ariana Mirian
Audrey Randall
Keegan Ryan
Mark Schultz
Laura Shea
Mingyao Shen
Michael Smith
Adam Suhl
George Sullivan
David Thien
Alisha Ukani
Psi Vesely
Recent Alumni

Shravan Narayan (Ph.D. 2022) UT Austin
Sam Crow (Ph.D. 2022)
Bingyu Shen (Ph.D. 2022) Meta
John Renner (Ph.D. 2022)
Gautam Akiwate (Ph.D. 2022) Stanford postdoc
Jessica Sorrell (Ph.D. 2022) UPenn postdoc
Craig Disselkoen (Ph.D. 2022) → Amazon
Alex Gamero-Garrido (Ph.D. 2021)NEU postdoc
Ruth Ng (Ph.D. 2021) DSO National Laboratories
Baiyu Li (Ph.D. 2021) Google
Chengcheng Xiang (Ph.D. 2021) Meta
Wei Dai (Ph.D. 2021) Bain Capital Crypto
Marcella Hastings (Ph.D. 2021, UPenn) Bolt Labs
Vivek Arte (M.S. 2021)QEDIT

[All Alumni]
Recent News

ICFP Most Influential Paper Award September 14— Yet more celebration! Congrats to Deian Stefan for his 2012 paper "Addressing Covert Termination and Timing Channels in Concurrent Information Flow Systems", which has received the ICFP "Most Influential Paper" award (aka Test of Time award). Congrats Deian!

August 19— Today we celebrate Shravan Narayan's successful defense of his thesis, "Retrofitting Sandboxing in Real Systems", elements of which are now in wide-spread use. Shravan will soon be starting in his new role as a faculty member at UT Austin. Congrats Shravan!

August 10— Congrats to Nadia Heninger for winning the USENIX Security Test-of-Time Award for her 2012 paper: Mining Your P's and Q's: Detection of Widespread Weak Keys in Network Devices, which also won the best paper award the year it was published! Clearly there was something special in the San Diego water a decade ago, as this is the third "test of time" award for members of the security group this year, and the sixth in the last four years.

July 12— Welcome to Earlence Fernandes who is joining us at UCSD! Earlence got his Ph.D. at UMich and has spent the last few years as an Assisstant Professor at the University of Wisconsin. We are looking forward to working with him! Earlence Fernandes

Sam Crow July 8— Congrats to Sam Crow who successfully defended his thesis today, "Security Testing Tools for Complex Cyber-Physical Systems". No doubt the only Ph.D. we've seen that involved significant chunks of a 737 in their home. Congrats!

June 1— Congrats to Gautam Akiwate who successfully defended his thesis today, "Identifying DNS Infrastructure Hijacks using Large Scale Measurements". Gautam will be starting a Postdoc with Zakir Durumeric at Stanford. Gautam has been a force for good in the department for longer than he will admit -- supporting Chez Bob, the holiday parties, sysnet outings, etc -- and we will all miss him. Gautam Akiwate

May 23— Eleven years ago, UCSD alumns Kirill Levchenko, Andreas Pitsillidis, Neha Chachra, Brandon Enright, Tristan Halvorson, Chris Kanich, He Liu, and Damon McCoy, along with UCSD faculty Geoff Voelker, Stefan Savage and their colleagues from Berkeley and Budapest, Mark Felegyhazi, Chris Grier, Christian Kreibich, Nicholas Weaver and Vern Paxson, published a comprehensive analysis of the spam criminal value chain. Today that paper, Click Trajectories: End-to-End Analysis of the Spam Value Chain and its impact was celebrated with the Test-of-Time award, presented at the 2022 IEEE Security and Privacy conference. Congrats all!
[All News]
Recent Publications

Access Denied: Assessing Physical Risks to Internet Access Networks, Alexander Marder, Zesen Zhang, Ricky Mok, Ramakrishna Padmanabhan, Bradley Huffaker, Matthew Luckie, Alberto Dainotti, kc claffy, Alex C. Snoeren, and Aaron Schulman, Proceedings of the USENIX Security Symposium, Anaheim, CA, August 2023.

Improving Logging to Reduce Permission Over-Granting Mistakes, Bingyu Shen, Tianyi Shan, and Yuanyuan Zhou, Proceedings of the USENIX Security Symposium, Anaheim, CA, August 2023.

No Privacy Among Spies: Assessing the Functionality and Insecrutiy of Consumer Android Spyware Apps, Enze Liu, Sumanth Rao, Sam Havron, Grant Ho, Stefan Savage, Geoffrey M. Voelker, and Damon McCoy, Proceedings on Privacy Enhancing Technologies Symposium, Lausanne, Switzerland, July 2023.

Retroactive Identification of Targeted DNS Infrastructure Hijacking, Gautam Akiwate, Raffaele Sommese, Mattijs Jonker, Zakir Durumeric, kc Claffy, Geoffrey M. Voelker, and Stefan Savage, Proceedings of the ACM Internet Measurement Conference (IMC), Nice, France, October 2022.

Where .ru? Assessing the Impact of Conflict on Russian Domain Infrastructure, Mattijs Jonker, Gautam Akiwate, Antonia Affinito, kc Claffy, Alessio Botta, Geoffrey M. Voelker, Rolan van Rijswijk-Deij, and Stefan Savage, Proceedings of the ACM Internet Measurement Conference (IMC), Nice, France, October 2022.

Measuring UID Smuggling in the Wild, Audrey Randall, Peter Snyder, Alisha Ukani, Alex C. Snoeren, Geoffrey M. Voelker, Stefan Savage, and Aaron Schulman, Proceedings of the ACM Internet Measurement Conference (IMC), Nice, France, October 2022.

Stop, DROP, and ROA: Effectiveness of Defenses through the lens of DROP, Leo Oliver, Gautam Akiwate, Matthew Luckie, Ben Du, and kc Claffy, Proceedings of the ACM Internet Measurement Conference (IMC), Nice, France, October 2022.

Mind Your MANRS: Measuring the MANRS Ecosystem, Ben Du, Cecilia Testart, Romain Fontugne, Gautam Akiwate, Alex C. Snoeren, and kc Claffy, Proceedings of the ACM Internet Measurement Conference (IMC), Nice, France, October 2022.

EVAX: Towards a Practical, Pro-active & Adaptive Architecture for High Performance & Security, Dean Tullsen Samira Ajorpaz, Daniel Moghimi Jamison Collins Nael Abu-Ghazaleh Gilles Pokam, Proceedings of the Annual IEEE/ACM International Symposium on Microarchitecture (MICRO), Chicago, IL, October 2022.

Measuring Security Practices, Louis F. DeKoven, Audrey Randall, Ariana Mirian, Gautam Akiwate, Ansel Blume, Lawrence K. Saul, Aaron Schulman, Geoffrey M. Voelker, and Stefan Savage, Communications of the Association for Computing Machinery 65(9):93-102, September 2022.

Evaluating Physical-Layer BLE Location Tracking Attacks on Mobile Devices, Hadi Givehchian, Nishant Bhaskar, Eliana Rodriguez Herrera, Héctor Rodrigo López Soto, Christian Dameff, Dinesh Bharadia, and Aaron Schulman, Proceedings of the IEEE Symposium on Security and Privacy, May 2022.

Domain Name Lifetimes: Baseline and Threats, Antonia Affinito, Raffaele Sommese, Gautam Akiwate, Stefan Savage, KC Claffy, Geoffrey M. Voelker, Alessio Botta, and Mattijs Jonker, Proceedings of Network Traffic Measurement and Analysis Conference (TMA), June 2022.

Quantifying Nations' Exposure to Traffic Observation and Selective Tampering, Alexander Gamero-Garrido, Esteban Carisimo, Shuai Hao, Bradley Huffaker, Alex C. Snoeren, and Alberto Dainottti, Proceedings of the Passive and Active Measurement Conference (PAM), Virtual, March 2022.

Quantifying Nations' Exposure to Traffic Observation and Selective Tampering, Alexander Gamero-Garrido, Esteban Carisimo, Shuai Hao, Bradley Huffaker, Alex C. Snoeren, and Alberto Dainottti, Proceedings of the Passive and Active Measurement Conference (PAM), Virtual, March 2022.

Risky BIZness: Risks Derived from Registrar Name Management, Gautam Akiwate, Stefan Savage, Geoffrey M. Voelker, and kc Claffy, Proceedings of the ACM Internet Measurement Conference (IMC), Virtual, November 2021.

Who’s Got Your Mail? Characterizing Mail Service Provider Usage, Enze Liu, Gautam Akiwate, Mattijs Jonker, Ariana Mirian, Stefan Savage, and Geoffrey M. Voelker, Proceedings of the ACM Internet Measurement Conference (IMC), Virtual, November 2021.

Home is Where the Hijacking is: Understanding DNS Interception by Residential Routers, Audrey Randall, Enze Liu, Ramakrishna Padmanabhan, Gautam Akiwate, Geoffrey M. Voelker, Stefan Savage, and Aaron Schulman, Proceedings of the ACM Internet Measurement Conference (IMC), Virtual, November 2021.

SugarCoat: Programmatically generating privacy-Preserving, Web-compatible resource replacements for content blocking, Michael Smith, Peter Snyder, Ben Livshits, and Deian Stefan, Proceedings of the ACM Conference on Computer and Communications Security (CCS), Seoul, Korea, November 2021.

On Bounded Distance Decoding with Predicate: Breaking the "Lattice Barrier" for the Hidden Number Problem, Martin R Albrecht and Nadia Heninger, Proceedings of Eurocrypt 2021, Zagreb, Croatia, October 2021.

On the Security of Homomorphic Encryption on Approximate Numbers, Baiyu Li and Daniele Micciancio, Proceedings of Eurocrypt 2021, Zagreb, Croatia, October 2021.

[All Publications]
Affiliations
Center for Networked Systems (CNS)         Cooperative Association for Internet Data Analysis (CAIDA)       San Diego Super Computer Center (SDSC)        California Institute for Telecommunications and Information Technology (Cal-IT2) CalIT(2)
Sponsors