Ariel Feldman

Software Engineer at Google

About me [CV]

I'm a software engineer at Google working on cloud key management and trusted execution environments. I work on systems security, especially on enabling users to outsource computation and sensitive data to third parties without having to fully trust them. I'm particularly interested in problems that intersect with law and public policy, such as electronic voting security, which has been the subject of some of my prior work.

Previously, I was a tenure-track assistant professor of Computer Science at the University of Chicago where I taught these courses and worked with these amazing students.

Publications [Google Scholar]

  • Using Differential Privacy to Efficiently Mitigate Side Channels in Distributed Analytics [PDF]
    M. Xu, A. Papadimitriou, A. J. Feldman, and A. Haeberlen
    Proc. 11th European Workshop on Systems Security (Eurosec '18), March 2018.
  • StrongBox: Confidentiality, Integrity, and Performance using Stream Ciphers for Full Drive Encryption [PDF]
    B. Dickens III, H. S. Gunawi, A. J. Feldman, and H. Hoffmann
    Proc. 23rd ACM International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS '18), March 2018.
  • Lemonade from Lemons: Harnessing Device Wearout to Create Limited-Use Security Architectures [PDF]
    Z. Deng, A. J. Feldman, S. A. Kurtz, and F. T. Chong
    Proc. 44th International Symposium on Computer Architecture (ISCA '17), June 2017.
  • Verifiable Differential Privacy [PDF]
    A. Narayan, A. J. Feldman, A. Papadimitriou, and A. Haeberlen
    Proc. 2015 European Conference on Computer Systems (EuroSys '15), April 2015.
  • Verifying Computations with State [PDF, Extended PDF]
    B. Braun, A. J. Feldman, Z. Ren, S. Setty, A. J. Blumberg, and M. Walfish
    Proc. 24th ACM Symposium on Operating Systems Principles (SOSP '13), November 2013.
  • Privacy and Integrity are Possible in the Untrusted Cloud [PDF]
    A. J. Feldman, A. Blankstein, M. J. Freedman, and E. W. Felten
    IEEE Data Engineering Bulletin, December 2012.
  • Social Networking with Frientegrity: Privacy and Integrity with an Untrusted Provider [PDF]
    A. J. Feldman, A. Blankstein, M. J. Freedman, and E. W. Felten
    Proc. 21st USENIX Security Symposium (Sec '12), August 2012.
    Awarded Best Student Paper
  • Privacy and Integrity in the Untrusted Cloud [PDF]
    A. J. Feldman
    Ph.D. Dissertation, Princeton University, June 2012.
  • SPORC: Group Collaboration using Untrusted Cloud Resources [PDF]
    A. J. Feldman, W. P. Zeller, M. J. Freedman, and E. W. Felten
    Proc. 9th Symposium on Operating Systems Design and Implementation (OSDI '10), October 2010.
  • On Subliminal Channels in Encrypt-on-Cast Voting Systems [PDF]
    A. J. Feldman and J. Benaloh
    Proc. 2009 USENIX/ACCURATE/IAVoSS Electronic Voting Technology Workshop (EVT/WOTE '09), August 2009.
  • Can DREs Provide Long-Lasting Security?
    The Case of Return-Oriented Programming and the AVC Advantage
    S. Checkoway, A. J. Feldman, B. Kantor, J. A. Halderman, E. W. Felten, and H. Shacham
    Proc. 2009 USENIX/ACCURATE/IAVoSS Electronic Voting Technology Workshop (EVT/WOTE '09), August 2009.
  • Lest We Remember: Cold Boot Attacks on Encryption Keys [PDF, Web Site, CACM]
    J. A. Halderman, S. D. Schoen, N. Heninger, W. Clarkson, W. Paul, J. A. Calandrino, A. J. Feldman, J. Appelbaum, and E. W. Felten
    Proc. 17th USENIX Security Symposium (Sec '08), July 2008.
    Awarded Best Student Paper
  • AVC Advantage: Hardware Functional Specifications [PDF]
    J. A. Halderman and A. J. Feldman
    Princeton University Computer Science Technical Report TR-816-08, March 8, 2008.
  • Security Analysis of the Diebold AccuVote-TS Voting Machine [Workshop PDF, Original PDF, Web Site]
    A. J. Feldman, J. A. Halderman, and E. W. Felten
    Proc. 2007 USENIX/ACCURATE Electronic Voting Technology Workshop (EVT '07), August 2007.
  • Source Code Review of the Diebold Voting System [PDF]
    J. A. Calandrino, A. J. Feldman, J. A. Halderman, D. Wagner, H. Yu, and W. P. Zeller
    California Secretary of State's 2007 "Top-to-Bottom Review" of California's voting systems, July 2007.
  • Internet Filters: A Public Policy Report, Second Edition [PDF]
    M. Heins, C. Cho, and A. Feldman
    Brennan Center for Justice at NYU School of Law, Free Expression Policy Project, May 2006.


Past students