Professional

SQIsign:

SQIsign is a digital signature scheme based on the on the presumed hardness of finding isogenies between supersingular elliptic curves  (with security proven in the random oracle model). SQIsign is currently under submission to round-2 of NIST's ongoing process for standardization of additional post-quantum digital signature schemes. I am part of the team that contributes to the design and analysis of SQIsign. 

Useful links/references:

• Website: https://sqisign.org/

• Latest specification: https://sqisign.org/spec/sqisign-20250707.pdf

• Latest (stable) implementation: https://github.com/SQIsign/the-sqisign/tree/nist-v2 

• Latest security analysis: https://eprint.iacr.org/2025/379 

Selected Talks:

• [2024] Cryptoplexity in a Quantum World. ACM India ARCS (invited early career research talk).

•  [2024] MPC with a Friend: Fairness in an Unfair World. IIT Kharagpur (Workshop on Architectures for Security and Privacy). 

• [2023-2024] Isogenies for Dummies: Post-Quantum Cryptography from Group Actions. IIT Kharagpur, IISc (department seminar). 

• [2022-2023] Cryptographic Primitives with Hinting Property. IACR ASIACRYPT 2022 (conference talk), NYU (crypto reading group), IISc Bangalore (crypto seminar).

• [2022] Efficient Searchable Symmetric Encryption for Join Queries. IACR ASIACRYPT 2022 (conference talk), Brown University (encrypted databases reading group), Bangalore Crypto Day. 

• [2022] Statistical Security in Two-Party Computation Revisited. IISc Bangalore (MPC reading group). 

• [2022] Rethinking Searchable Symmetric Encryption. IISc Bangalore (EECS symposium). 

• [2021] Designing Secure Cryptographic Systems: Journey from Theory to Practice. IISc Bangalore, IBM Research India, IIT Bombay, IIT Madras (department seminars).

• [2021] Searchable Symmetric Encryption: Recent Progress and Challenges. Microsoft Research India. 

• [2021] Forward and Backward Private Conjunctive Searchable Symmetric Encryption. NDSS 2021 (conference talk), Monash University (crypto/security seminar), ISI Kolkata (crypto webinar), VISA Research USA (crypto reading group), ETH Zürich (crypto reading group). 

• [2021] SWiSSSE: System-Wide Security for Searchable Symmetric Encryption. IACR Real World Crypto Symposium (RWC) (contributed talk). 

• [2020] Cryptographic Group Actions and Applications. IACR ASIACRYPT 2020 (conference talk), VISA Research USA (crypto reading group), ETH Zürich (crypto reading group). 

• [2019-2020] Minicrypt Primitives with Structure. IACR EUROCRYPT 2019 (conference talk), UC Berkeley (crypto reading group), VISA Research USA (invited talk), IISc Bangalore (department seminar), ISI Kolkata (crypto webinar), Royal Holloway (invited talk), IIT Kharagpur (crypto reading group).

• [2018] Result Pattern Hiding Searchable Encryption for Conjunctive Queries. ACM CCS 2018 (conference talk), VISA Research USA (invited talk), IIT Kharagpur (department seminar).

• [2015] Fault Analysis of Cryptosystems. Attacks, Countermeasures and Metrics. IACR CHES 2015 (invited tutorial).

Program Committees and and Editorial Boards:

I have served/am serving on the following conference program committees and journal editorial boards:

• 2026: USENIX Security, ACM AsiaCCS (Track chair), IACR TCHES, IACR CiC

• 2025: ACM CCS,  ESORICS, IACR (T)CHES, IACR CiC, ACNS , CT-RSA, SPACE

• 2024: CODASPY, AFRICACRYPT, ARES, ICBC, SPACE

• 2023: IACR ASIACRYPT, IACR PKC, CANS, AFRICACRYPT,  CBC, SPACE

• 2022: (Po)PETS, ESORICS, SPACE, CANS

• 2021:  IACR CRYPTO, ESORICS, SPACE, FDTC

• 2020: IEEE ASIANHOST, SPACE

External Reviewing: 

I have served as an external reviewer for the following conferences and journals:

• Conferences: ACM CCS, USENIX Security Symposium, IACR CRYPTO, IACR EUROCRYPT, IACR ASIACRYPT, IACR TCC, IACR (T)CHES, IACR PKC, ESORICS, IEEE/ACM DAC

• Journals: IACR Journal of Cryptology (JoC), IEEE Transactions on Computers (TC), IEEE Transactions on Information Forensics and Security (TIFS), IEEE Transactions on Dependable and Secure Computing (TDSC), IEEE Transactions on Circuits and Systems (TCAS)- I/II, IEEE Transactions on Knowledge and Data Engineering (TKDE), IEEE Transactions on VLSI (TVLSI), Design, Codes and Cryptography (DESI)

Bangalore Crypto Day:

I help co-organize the Bangalore Crypto Day (BCD)  -- a recurring one-day workshop-style gathering about cryptography and related research, held at different locations in Bangalore. The aim of the event is to bring together researchers and students based in Bangalore with interest in cryptography (theoretical and applied), and have us share our work.