I am currently an assistant professor in the Department of Computer Science and Engineering at IIT Tirupati. Prior to this, I was a postdoctoral researcher at Indian Institute of Science (IISc), where I was hosted by Prof. Arpita Patra. I completed my PhD from the Department of Computer Science and Engineering at IIT Ropar, where I was advised by Prof. Sudarshan Iyengar.
I work in the area of secure Multi-Party Computation (MPC) and design privacy-preserving solutions to various real-world applications that demand a secure variant.
Publications
Conference
Graphiti: Secure Graph Computation Made More Scalable.
ACM CCS 2024. (Core A*)
Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, and Bhavish Raj Gopal.
Shield: Secure Allegation Escrow System with Stronger Guarantees.
TheWebConf 2023. [paper] (Core A*)
Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, and Bhavish Raj Gopal.
PentaGOD: Stepping beyond Traditional GOD with Five Parties.
ACM CCS 2022. [paper] (Core A*)
Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, and Bhavish Raj Gopal.
Attaining GOD Beyond Honest Majority with Friends and Foes
Asiacrypt 2022. [paper] (Core A)
Aditya Hegde, Nishat Koti, Varsha Bhat Kukkala, Shravani Patil, Arpita Patra, and Protik Paul.
Computing Betweenness Centrality: An Efficient Privacy-Preserving Approach
CANS 2018. [link] (Core B)
Varsha Bhat Kukkala and S.R.S Iyengar.
Privacy Preserving Distributed Analysis of Social Networks
TheWebConf 2018. [paper] (Core B)
Varsha Bhat Kukkala.
Secure Multiparty Construction of a Distributed Social Network
ICDCN 2017. [link] (Core National)
Varsha Bhat Kukkala, Jaspal Singh Saini, and S. R. S. Iyengar
Privacy preserving network analysis of distributed social networks
ICISS 2016. [link] (Core National)
Varsha Bhat Kukkala, Jaspal Singh Saini, and S. R. S. Iyengar
Journal
Ruffle: Rapid 3-Party Shuffle Protocols.
PoPETs 2023. [paper] (Core A)
Pranav Shriram A, Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, Bhavish Raj Gopal, and Somya Sangal.
Find Thy Neighbourhood: Privacy-Preserving Local Clustering.
PoPETs 2023. [paper] (Core A)
Pranav Shriram A, Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, and Bhavish Raj Gopal.
Vogue: Faster Computation of Private Heavy Hitters.
IEEE TDSC 2023. [paper] (Core A)
Pranav Jangir, Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, Bhavish Raj Gopal, and Somya Sangal.
Identifying Influential Spreaders in a Social Network (While Preserving Privacy)
PoPETs 2020. [paper] (Core A)
Varsha Bhat Kukkala and S.R.S Iyengar.
Poster/Workshop
Shield: Secure Allegation Escrow System with Stronger Guarantees.
PETS 2023 (Poster).
Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, and Bhavish Raj Gopal.
Vogue: Faster Computation of Private Heavy Hitters.
ACM CCS 2022 (Poster).
Pranav Jangir, Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, Bhavish Raj Gopal, and Somya Sangal.
PentaGOD: Stepping beyond Traditional GOD with Five Parties.
CANS 2022 (Poster).
Nishat Koti, Varsha Bhat Kukkala, Arpita Patra, and Bhavish Raj Gopal.
You Share Because We Care: Secure Allegation Escrow System.
CANS 2022 (Poster), IEEE S&P 2022 (Poster).
Nishat Koti, Varsha Bhat Kukkala, and Arpita Patra.
Secure multiparty graph computation
COMSNETS 2016 (Poster)
Varsha Bhat Kukkala, Jaspal Singh Saini, and S. R. S. Iyengar