Sai Lakshmi Bhavana Obbattu
Assistant Professor
Computer Science and Engineering Department
IIT (BHU), Varanasi
Professional Recognition
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
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.