Hello, I am Tarik Moataz

Postdoctoral Researcher at Brown University

I am a Postdoctoral Research Associate in Computer Science at Brown University working with Seny Kamara. I received a French-American joint Ph.D. degree from IMT Atlantique and Colorado State University. My main research area is applied cryptography and, especially, its intersection with algorithms and data structures. My research focuses on designing provably-secure protocols that are efficient and ready for real-world deployment. Inspired by real world problems, I enjoy working in the area of encrypted search and aim to provide a better understanding of the balance between security and efficiency. One of my best examples is Clusion! An open source library implementing advanced encrypted search schemes.

I am a member of the CAPS research group. Here are my DBLP and Google Scholar links.

  • Boolean Searchable Symmetric Encryption with Worst-Case Sub-Linear Complexity

    Seny Kamara, Tarik Moataz
    to appear at EUROCRYPT 2017

  • SQL on Structurally-Encrypted Databases

    Seny Kamara, Tarik Moataz
    Link to PDF

  • Substring search over encrypted data

    Tarik Moataz, Indrajit Ray, Indrakshi Ray, Abdullatif Shikfa, Frédéric Cuppens, and Nora Cuppens-Boulahia
    to appear at Journal of Computer Security JCS 2017

  • OblivP2P: An Oblivious Peer-to-Peer Content Sharing System

    Yaoqi Jia, Tarik Moataz, Shruti Tople, Prateek Saxena
    USENIX 2016
    Proceeding version

  • Oblivious Substring Search over Encrypted Data

    Tarik Moataz, Erik-Oliver Blass
    Link to PDF

  • Constant Communication ORAM with small Blocksize

    Tarik Moataz, Travis Mayberry, and Erik-Oliver Blass
    ACM CCS 2015
    Proceeding version

  • Recursive Trees for Practical ORAM

    Tarik Moataz, Erik-Oliver Blass, and Guevara Noubir
    PETS 2015
    Proceeding version

  • International Conference on Applied Cryptography and Network Security (ACNS'17)
  • Student PC for the 38th IEEE Symposium on Security and Privacy (S&P'17)
  • International Conference on the Theory and Applications of Security and Cryptography in Africa (Africacrypt'17)
  • International Conference on Information Security and Cryptology (ICISC'16)
  • Provable Security (ProvSec'15)
  • Generalized Boolean Searchable Encryption

    Tarik Moataz, Abdullatif Shikfa
    US patent, European Patent, Bell Labs, Alcatel-Lucent, France
    Link

  • Semantic Search Over Encrypted Data

    Abdullatif Shikfa, Tarik Moataz
    European Patent, Bell Labs, Alcatel-Lucent, France
    Link

  • Constant Communication ORAM with small Blocksize

    • MPC workshop, Aarhus, Denmark, June 2016
    • ACM CCS, Denver, CO, USA, October 2015
    • Microsoft Research, Redmond WA, USA, July 2015
    • ESSA, Bertinoro, Italy, June 2015
    Slides
  • Oblivious Substring search over encrypted data

    • Microsoft Research, Redmond WA, USA, August 2015
    Slides
  • Recursive Trees for Practical ORAM

    • PETS, Philadelphia, USA, July 2015
    • Microsoft Research, Redmond WA, USA, November 2014
    Slides
  • Resizable Tree-Based Oblivious RAM

    • Financial Crypto, San Juan, Puerto Rico,January 2015
    • DBSec Research Group, Fort Collins CO, USA, November 2014
    • Microsoft Research, Redmond WA, USA, November 2014
    Slides
  • ELITE: zero links identity management system

    • DBSec, Vienna, Austria, July 2014
    • DBSec Research Group, Fort Collins CO, USA, May 2014
    Slides
  • Privacy-preserving multiple keyword search on outsourced data in the clouds

    • DBSec, Vienna, Austria, July 2014
    • DBSec Research Group, Fort Collins CO, USA, May 2014
    Slides
  • Semantic search over encrypted data

    • ICT, Casablanca, Morocco, May 2013
    • Journée LUSSI, Brest, France, June 2014
    Slides
  • Boolean symmetric searchable encryption

    • (Poster) Financial Cryptography, Okinawa, Japan, April 2013
    • Bell Labs, Alcatel-Lucent, Paris, France, August 2012
    Slides
  • Boolean Searchable Symmetric Encryption with Worst-Case Sub-Linear Complexity

    Seny Kamara, Tarik Moataz
    to appear at EUROCRYPT 2017

  • SQL on Structurally-Encrypted Databases

    Seny Kamara, Tarik Moataz
    Link to PDF

  • Substring search over encrypted data

    Tarik Moataz, Indrajit Ray, Indrakshi Ray, Abdullatif Shikfa, Frédéric Cuppens, and Nora Cuppens-Boulahia
    to appear at Journal of Computer Security JCS 2017

  • OblivP2P: An Oblivious Peer-to-Peer Content Sharing System

    Yaoqi Jia, Tarik Moataz, Shruti Tople, Prateek Saxena
    USENIX 2016
    Proceeding version

  • Oblivious Substring Search over Encrypted Data

    Tarik Moataz, Erik-Oliver Blass
    Link to PDF

  • Constant Communication ORAM with small Blocksize

    Tarik Moataz, Travis Mayberry, and Erik-Oliver Blass
    ACM CCS 2015
    Proceeding version

  • Recursive Trees for Practical ORAM

    Tarik Moataz, Erik-Oliver Blass, and Guevara Noubir
    PETS 2015
    Proceeding version

  • Privacy Preserving Record Matching Using Automated Semi-trusted Broker

    Ibrahim Lazrig, Tarik Moataz, Indrajit Ray, Indrakshi Ray, Toan Ong, Michael G. Kahn, Frédéric Cuppens, and Nora Cuppens-Boulahia
    DBSec 2015
    Proceeding version

  • Resizable Tree-Based Oblivious RAM

    Tarik Moataz, Travis Mayberry, Erik-Oliver Blass, and Agnes Hui Chan
    FC 2015
    Proceeding version

  • Privacy-Preserving Multiple Keyword Search on Outsourced Data in the Clouds

    Tarik Moataz, Nora Cuppens-Boulahia, Frédéric Cuppens, Indrajit Ray, and Indrakshi Ray
    DBSec 2014
    Proceeding version

  • ELITE: zEro Links Identity managemenT systEm

    Tarik Moataz, Nora Cuppens-Boulahia, Frédéric Cuppens, Indrajit Ray, and Indrakshi Ray
    DBSec 2014
    Proceeding version

  • Semantic search over encrypted data

    Tarik Moataz, Abdullatif Shikfa, Nora Cuppens-Boulahia, and Frédéric Cuppens
    IEEE ICT 2013
    Proceeding version

  • Boolean symmetric searchable encryption

    Tarik Moataz and Abdullatif Shikfa
    ACM ASIACCS 2013
    Proceeding version

  • Handling stateful firewall anomalies

    Frédéric Cuppens, Nora Cuppens-Boulahia, Joaquin Garcia Alfaro, Tarik Moataz, and Xavier Rimasson
    IFIP SEC 2012
    Proceeding version

  • Office CIT-455, 115 Waterman Street, Computer Science Department, Brown University