Home Research Teaching Other Contact

I am an Assistant Professor in the Department of Computer Science and Automation at Indian Institute of Science . My research interests are in Cryptography and Security. Before joining IISc, I was a post-doctoral researcher in the Crypto group at Aarhus University. I received my PhD from NYU's Courant Institute of Mathematical Sciences.

Research

Publications:

  • Fairness in the Eyes of the Data: Certifying Machine-Learning Models
    Shahar Segal, Yossi Adi, Benny Pinkas, Carsten Baum, Chaya Ganesh, Joseph Keshet
    AAAI/ACM Conference on Artificial Intelligence, Ethics and Society, 2021

  • Balancing Privacy and Accountability in Blockchain Identity Management
    Ivan Damgård, Chaya Ganesh, Hamidreza Khoshakhlagh, Claudio Orlandi, Luisa Siniscalchi
    CT-RSA 2021

  • Optimal Extension Protocols for Byzantine Broadcast and Agreement
    Chaya Ganesh, Arpita Patra
    Distributed Computing 2020

  • Cryptographic Reverse Firewalls for Interactive Proof Systems
    Chaya Ganesh, Bernardo Magri, Daniele Venturi
    ICALP 2020

  • Proofs of Replicated Storage without Timing Assumptions
    Ivan Damgård, Chaya Ganesh, Claudio Orlandi
    Crypto 2019

  • Proof-of-Stake Protocols for Privacy-Aware Blockchains
    Chaya Ganesh, Claudio Orlandi, Daniel Tschudi
    Eurocrypt 2019

  • Non-Interactive Zero-Knowledge Proofs for Composite Statements
    Shashank Agrawal, Chaya Ganesh, Payman Mohassel
    CRYPTO 2018

  • Efficient Adaptively Secure Zero-knowledge from Garbled Circuits
    Chaya Ganesh, Yashvanth Kondi, Arpita Patra, Pratik Sarkar
    PKC 2018

  • Hashing Garbled Circuits for Free
    Xiong Fan, Chaya Ganesh, Vladimir Kolesnikov
    Eurocrypt 2017

  • Efficient Zero-Knowledge Proof of Algebraic and Non-Algebraic Statements with Applications to Privacy Preserving Credentials
    Melissa Chase, Chaya Ganesh, Payman Mohassel
    CRYPTO 2016

  • Broadcast Extensions with Optimal Communication and Round Complexity
    [Full version]
    Chaya Ganesh, Arpita Patra
    PODC 2016

  • A Formal Treatment of Backdoored Pseudorandom Generators
    Yevgeniy Dodis, Chaya Ganesh, Alexander Golovnev, Ari Juels, Thomas Ristenpart
    Eurocrypt 2015

  • On-Line/Off-Line Leakage Resilient Secure Computation Protocols
    Chaya Ganesh, Vipul Goyal, Satya Lokam
    Indocrypt 2012

  • Communication Complexity of Efficient Two-party Computation Protocols
    Chaya Ganesh, C. Pandurangan
    WISTP 2012

Preprints:

  • Virtual ASICs: Generalized Proof-of-Stake Mining in Cryptocurrencies
    Chaya Ganesh, Claudio Orlandi, Daniel Tschudi, Aviv Zohar
    Preprint 2020, ePrint

  • Rinocchio: SNARKs for Ring Arithmetic
    Chaya Ganesh, Anca Nitulescu, Eduardo Soria-Vazquez
    Preprint 2020, ePrint

Teaching

Cryptography, Fall 2020 (co-teaching with Arpita Patra)

Proof Systems in Cryptography, Spring 2021

Other

Program Committees:
CRYPTO 2021 , ACISP 2021 , PETS 2021 , Indocrypt 2020 , WPES 2020 , PODC 2020 , PETS 2020 , IFIP SEC 2020, SBC 2020 , Indocrypt 2019, BCC 2019, CANS 2019, CANS 2018 , IFIP SEC 2018

I am serving as the Program Co-Chair for Theory and Practice of Blockchains (TPBC) 2021, and helped organize TPBC 2020 and TPBC 2019.

I have been an external reviewer for ICALP 2021, TCC 2020, DISC 2020, Asiacrypt 2020, MFCS 2020, Eurocrypt 2020, PKC 2020, CCS 2019, Crypto 2019, Eurocrypt 2019, PKC 2019, TCC 2019, Eurocrypt 2018, PKC 2018, Asiacrypt 2017, Provsec 2017, Eurocrypt 2017, CCS 2016, Crypto 2016, Eurocrypt 2016, ACNS 2015, Crypto 2014, TCC 2014.

Contact

Computer Science and Automation
Indian Institute of Science
Office 334, CSA
IISc, Bengaluru 560012
Email: chaya [at] iisc [dot] ac [dot] in