Professional Recognition

• INAE Young Associate 2024

• Awarded with INSPIRE Faculty Fellowship in the 2022 call

Education

• Ph.D - Indian Institute of Science, Bangalore (Fortunate to be advised by  Dr.Bhavana Kanukurthi)

• Integrated Dual Degree (B.Tech and M.Tech) in Computer Science and Engineering - IIT (BHU), Varanasi

Experience

• Post Doc Researcher at Microsoft Research, India.  

Teaching

• CSE 530: Information Security Odd 2023-24 

• CSO 101: Computer Programming Odd 2022-23, Even 2022-23, Odd 2023-24 

• CSE504: Mathematics for Computer Science Even 2022-23 (post graduate course)

Research Supervision - Resources for students

Publications

2024

• R3PO: Reach-Restricted Reactive Program Obfuscation and its Application to MA-ABE

Kaartik Bhushan, Sai Lakshmi Bhavana Obbattu, Manoj Prabhakaran and       Rajeev Raghunath

PKC2024

2022

• Rate One-Third Non-malleable Codes (solves a long standing open problem!)

Divesh Aggarwal and Bhavana Kanukurthi and Sai Lakshmi Bhavana Obbattu and Maciej Obremski and Sruthi Sekar

STOC 2022

• SIMC: ML Inference Secure Against Malicious Clients at Semi-Honest Cost

Nishanth Chandran and Divya Gupta and Sai Lakshmi Bhavana Obbattu and Akash Shah

USENIX 2022

• Short Leakage Resilient and Non-malleable Secret Sharing Schemes (In Submission) 

Nishanth Chandran and Bhavana Kanukurthi and Sai Lakshmi Bhavana Obbattu and Sruthi Sekar

2021

• Adaptive Extractors and their Application to Leakage Resilient Secret Sharing

Nishanth Chandran, Bhavana Kanukurthi, Sai Lakshmi Bhavana Obbattu, Sruthi Sekar 

CRYPTO 2021

• Efficient Multiparty Private Set Intersection with Linear Communication and Extensions 

Nishanth Chandran, Nishka Dasgupta, Divya Gupta, Sai Lakshmi Bhavana Obbattu, Sruthi Sekar and Akash Shah 

ACM CCS 2021

• Locally Reconstructable Non-malleable Secret Sharing 

Bhavana Kanukurthi, Sai Lakshmi Bhavana Obbattu, Sruthi Sekar and Jenit Tomy

ITC 2021

2019

• Privacy Amplification from Non-malleable Codes

Eshan Chattopadhyay, Bhavana Kanukurthi, Sai Lakshmi Bhavana Obbattu and Sruthi Sekar

Indocrypt 2019

2018

• Non-malleable Randomness Encoders and their Applications

Bhavana Kanukurthi, Sai Lakshmi Bhavana Obbattu and Sruthi Sekar

Eurocrypt 2018

2017

• Four-state Non-malleable Codes with Explicit Constant Rate

Bhavana Kanukurthi, Sai Lakshmi Bhavana Obbattu and Sruthi Sekar

TCC 2017 and was Invited to the Journal of Cryptography

Service

• External reviewer for the confereces - ITC 2022, CRYPTO 2022, Eurocrypt 2022, ITC 2020, Eurocrypt 2020, 

PKC 2019, CRYPTO 2019, CRYPTO 2018, TCC 2018, Indocrypt 2018, CANS 2016

Appointments: If you need an appointment please email me and you will mostly hear back in a day.