Blog Posts

1. How to Remove the Relay in PBS
2. Removing the Epoch Setup in Batched Threshold Encryption
3. New Threshold Encryption Schemes for Mempool Privacy and Timelock Encryption
4. Experimenting with Zero-Knowledge Proofs of Training

Publications

1. A Framework for Witness Encryption from Linearly Verifiable SNARKs and Applications
   Sanjam Garg, Mohammad Hajiabadi, Dimitris Kolonelos, Abhiram Kothapalli, and Guru-Vamsi Policharla
   [CRYPTO 2025]
2. Crescent: Stronger Privacy for Existing Credentials
   Christian Paquin, Guru-Vamsi Policharla, and Greg Zaverucha
   [Manuscript 2024], [RWC 2025], [code], [blog], [demo]
3. Practical Mempool Privacy via One-time Setup Batched Threshold Encryption
   Arka Rai Choudhuri, Sanjam Garg, Guru-Vamsi Policharla, and Mingyuan Wang
   [USENIX Security 2025], [code], [gpu], [blog]
4. Threshold Encryption with Silent Setup
   Sanjam Garg, Dimitris Kolonelos, Guru-Vamsi Policharla, and Mingyuan Wang
   [CRYPTO 2024], [code], [blog 1], [blog 2]
5. Improved Alternating Moduli PRFs and Post-Quantum Signatures
   Navid Alamati, Guru-Vamsi Policharla, Srinivasan Raghuraman, and Peter Rindal
   [CRYPTO 2024]
6. Mempool Privacy via Batched Threshold Encryption: Attacks and Defenses
   Arka Rai Choudhuri, Sanjam Garg, Julien Piet, and Guru-Vamsi Policharla
   [USENIX Security 2024], [code], [blog]
7. Experimenting with Zero-Knowledge Proofs of Training
   Sanjam Garg, Aarushi Goel, Somesh Jha, Saeed Mahloujifar, Mohammad Mahmoody, Guru-Vamsi Policharla, and Mingyuan Wang
   [CCS 2023], [RWC 2024], [code], [blog]
8. zkSaaS: ZK-SNARKs as a Service
   Sanjam Garg, Aarushi Goel, Abhishek Jain, Guru-Vamsi Policharla, and Sruthi Sekar
   [USENIX Security 2023], [code]
9. Post-Quantum Privacy Pass via Post-Quantum Anonymous Credentials
   Guru-Vamsi Policharla, Bas Westerbaan, Armando Faz-Hernández, and Christopher A Wood
   [Manuscript 2023], [RWC 2023], [code], [demo]
10. End-to-End Secure Messaging with Traceability Only for Illegal Content
    James Bartusek, Sanjam Garg, Abhishek Jain, and Guru-Vamsi Policharla
    [EUROCRYPT 2023], [code]
11. ZEBRA: SNARK-based Anonymous Credentials for Practical, Private and Accountable On-chain Access Control
    Deevashwer Rathee, Guru-Vamsi Policharla, Tiancheng Xie, Ryan Cottone, and Dawn Song
    [Manuscript 2022], [code]
12. Group Structure in Correlations and its Applications in Cryptography
    Guru-Vamsi Policharla, Manoj Prabhakaran, Rajeev Raghunath, and Parjanya Vyas.
    [ITC 2021]
13. Algorithmic Primitives for Quantum-Assisted Quantum Control
    Guru-Vamsi Policharla, and Sai Vinjanampathy.
    [Physical Review Letters 2021]
14. Efficient Zero-Knowledge Proofs of Graph Signature for Connectivity and Isolation Using Bilinear-Map Accumulator
    Toru Nakanishi, Hiromi Yoshino, Tomoki Murakami, and Guru-Vamsi Policharla.
    [APKC@AsiaCCS - 2020]
15. Revisiting Deniability in Quantum Key Exchange via Covert Communication and Entanglement Distillation
    Atashpendar, Arash, G. Vamsi Policharla, Peter B. Rønne, and Peter YA Ryan.
    [Nordic Conference on Secure IT Systems - 2018]