5 papers
More is Merrier: Relax the Non-Collusion Assumption in Multi-Server PIR
Tiantian Gong, Ryan Henry, Alexandros Psomas +1
A long line of research on secure computation has confirmed that anything that can be computed, can be computed securely using a set of non-colluding parties. Indeed, this non-coll…
V3rified: Revelation vs Non-Revelation Mechanisms for Decentralized Verifiable Computation
Tiantian Gong, Aniket Kate, Alexandros Psomas +1
In the era of Web3, decentralized technologies have emerged as the cornerstone of a new digital paradigm. Backed by a decentralized blockchain architecture, the Web3 space aims to…
Attacking and Improving the Tor Directory Protocol
Zhongtang Luo, Adithya Bhat, Kartik Nayak +1
The Tor network enhances clients' privacy by routing traffic through an overlay network of volunteered intermediate relays. Tor employs a distributed protocol among nine hard-coded…
Optimal Sharding for Scalable Blockchains with Deconstructed SMR
Jianting Zhang, Zhongtang Luo, Raghavendra Ramesh +1
Sharding is proposed to enhance blockchain scalability. However, a size-security dilemma where every shard must be large enough to ensure its security constrains the efficacy of in…
The Case of FBA as a DEX Processing Model
Tiantian Gong, Zeyu Liu, Aniket Kate
We investigate the welfare loss of continuous and discrete order matching models in blockchain-based decentralized exchanges (DEX) that utilize order books to record outstanding or…