4 papers
Audit-or-Cast: Enforcing Honest Elections with Privacy-Preserving Public Verification
Aman Rojjha, Gaurang Tandon, Varul Srivastava +1
Electronic voting systems must balance public verifiability with voter privacy and coercion resistance. Existing cryptographic protocols typically achieve end-to-end verifiability…
Optimal Strategies for Federated Learning Maintaining Client Privacy
Uday Bhaskar, Varul Srivastava, Avyukta Manjunatha Vummintala +2
Federated Learning (FL) emerged as a learning method to enable the server to train models over data distributed among various clients. These clients are protective about their data…
Towards Rational Consensus in Honest Majority
Varul Srivastava, Sujit Gujar
Distributed consensus protocols reach agreement among players in the presence of adversaries; different protocols support different values of . Existing works study this…
Centralization in Proof-of-Stake Blockchains: A Game-Theoretic Analysis of Bootstrapping Protocols
Varul Srivastava, Sankarshan Damle, Sujit Gujar
Proof-of-stake (PoS) has emerged as a natural alternative to the resource-intensive Proof-of-Work (PoW) blockchain, as was recently seen with the Ethereum Merge. PoS-based blockcha…