Concept
Blockchain
Related publications (91)
Breaking Blockchain Rationality with Out-of-Band Collusion
Bryan Alexander Ford, Verónica del Carmen Estrada Galiñanes, Louis-Henri Manuel Jakob Merino, Haoqian Zhang, Mahsa Bastankhah
Blockchain systems often rely on rationality assumptions for their security, expecting that nodes are motivated to maximize their profits. These systems thus design their protocols to incentivize nodes to execute the honest protocol but fail to consider ou ...
Cham2024Towards General-Purpose Decentralized Computing with Permissionless Extensibility
Smart contracts have emerged as the most promising foundations for applications of the blockchain technology. Even though smart contracts are expected to serve as the backbone of the next-generation web, they have several limitations that hinder their wide ...
EPFL2024DIABLO: A Benchmark Suite for Blockchains
Rachid Guerraoui, Gauthier Jérôme Timothée Voron, Vincent Gramoli, Andrei Lebedev
With the recent advent of blockchains, we have witnessed a plethora of blockchain proposals. These proposals range from using work to using time, storage or stake in order to select blocks to be appended to the chain. As a drawback it makes it difficult fo ...
ASSOC COMPUTING MACHINERY2023Byzantine Fault-Tolerance in Federated Local SGD Under 2f-Redundancy
In this article, we study the problem of Byzantine fault-tolerance in a federated optimization setting, where there is a group of agents communicating with a centralized coordinator. We allow up to Byzantine-faulty agents, which may not follow a prescr ...
Piscataway2023Building Strongly-Consistent Systems Resilient to Failures, Partitions, and Slowdowns
Distributed systems designers typically strive to improve performance and preserve availability despite failures or attacks; but, when strong consistency is also needed, they encounter fundamental limitations. The bottleneck is in replica coordination, whi ...
EPFL2023Making Classical (Threshold) Signatures Post-quantum for Single Use on a Public Ledger
Serge Vaudenay, Laurane Chloé Angélina Marco, Abdullah Talayhan
The Bitcoin architecture heavily relies on the ECDSA signature scheme which is broken by quantum adversaries as the secret key can be computed from the public key in quantum polynomial time. To mitigate this attack, bitcoins can be paid to the hash of a pu ...
2023Diablo-v2: A Benchmark for Blockchain Systems
Rachid Guerraoui, Gauthier Jérôme Timothée Voron, Vincent Gramoli, Andrei Lebedev
With the recent advent of blockchains, we have witnessed a plethora of blockchain proposals. These proposals range from using work to using time, storage or stake in order to select blocks to be appended to the chain. As a drawback it makes it difficult fo ...
2022Infochain: A Decentralized, Trustless and Transparent Oracle on Blockchain
Boi Faltings, Naman Goel, Aris Filos Ratsikas
Blockchain based systems allow various kinds of financial transactions to be executed in a decentralized manner. However, these systems often rely on a trusted third party (oracle) to get correct information about the real-world events, which trigger the f ...
2022Toward Mobile Distributed Ledgers
Boi Faltings, Sujit Prakash Gujar, Dimitrios Chatzopoulos, Anurag Jain
Advances in mobile computing have paved the way for new types of distributed applications that can be executed solely by mobile devices on Device-to-Device (D2D) ecosystems (e.g., crowdsensing). Sophisticated applications, like cryptocurrencies, need distr ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022