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06/09/2023
Front-running Attack in Distributed Sharded Ledgers and Fair Cross-shard Consensus
Sharding is a prominent technique for scaling blockchains. By dividing t...
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05/06/2023
DORA: Distributed Oracle Agreement with Simple Majority
Oracle networks feeding off-chain information to a blockchain are requir...
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04/11/2023
EESMR: Energy Efficient BFT-SMR for the masses
Modern Byzantine Fault-Tolerant State Machine Replication (BFT-SMR) solu...
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02/02/2023
Order but Not Execute in Order
We explore combining batch order-fair atomic broadcast (of-ABC) and freq...
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12/07/2022
Last Mile of Blockchains: RPC and Node-as-a-service
While much research focuses on different methods to secure blockchain, i...
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04/20/2022
The Danger of Small Anonymity Sets in Privacy-Preserving Payment Systems
Unlike suggested during their early years of existence, Bitcoin and simi...
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01/19/2022
Relax the Non-Collusion Assumption for Multi-Server PIR
For distributed protocols involving many servers, assuming that they do ...
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09/03/2020
HACCLE: An Ecosystem for Building Secure Multi-Party Computations
Cryptographic techniques have the potential to enable distrusting partie...
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08/26/2020
"My Friend Wanted to Talk About It and I Didn't": Understanding Perceptions of Deletion Privacy in Social Platforms
There is a growing concern and awareness about the right-to-be-forgotten...
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07/22/2020
Undercutting Bitcoin Is Not Profitable
A fixed block reward and voluntary transaction fees are two sources of e...
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05/28/2020
Deceptive Deletions for Protecting Withdrawn Posts on Social Platforms
Over-sharing poorly-worded thoughts and personal information is prevalen...
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01/02/2020
Reparo: Publicly Verifiable Layer to Repair Blockchains
Although blockchains aim for immutability as their core feature, several...
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11/20/2019
Concurrency and Privacy with Payment-Channel Networks
Permissionless blockchains protocols such as Bitcoin are inherently limi...
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09/04/2019
A Tale of Two Trees: One Writes, and Other Reads. Optimized Oblivious Accesses to Large-Scale Blockchains
The Bitcoin network has offered a new way of securely performing financi...
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02/16/2019
Brief Note: Asynchronous Verifiable Secret Sharing with Optimal Resilience and Linear Amortized Overhead
In this work we present hbAVSS, the Honey Badger of Asynchronous Verifia...
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10/23/2018
SATE: Robust and Private Allegation Escrows
For fear of retribution, the victim of a crime may be willing to report ...
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10/30/2017