Research Theme: distributed algorithms

The Blockchain & B2B Platforms Chair at École Polytechnique, supported by Capgemini, Nomadic Labs and Caisse des Dépôts, is commited to the Blockchain for Good association, which actively contributes to a global mapping of impactful blockchain projects and will soon...

In STARK-like zero -knowledge proofs, like those of the Starware company, the major algorithmic and mathematical breakthrough which enables such great performance in applications is the invention of very efficient "low degree test" of univariate polynomials. Our work enables to...

This webinar features Aggelos Kiayias (IOHK/ Cardano) and will be hosted by Brett Falk (UPenn CS). Topic Rethinking Information Technology from a Decentralisation Perspective Abstract...

One of the main obstacles to the deployment of blockchains is the fact that the data managed on a blockchain is publicly accessible. This is unthinkable in the health or banking sectors, for example. Zero-knowledge technologies can resolve precisely this...

Tokenomics is an international forum for theory, design, analysis, implementation and applications of blockchains and smart contracts. The goal of the conference is to bring...

Tokenomics is an international forum for theory, design, analysis, implementation and applications of blockchains and smart contracts. The goal of the conference is to bring together economists, computer science researchers and practitioners working on blockchains in a unique program featuring...

Tokens and ICOs: A review of the Economic Literature, with Andrea Canidio, Vincent Danos and Stefania Marcassa, This article is a part of Principles of Blockchain Systems, Synthesis Lectures on Computer Science, 2021, Vol. 9, No. 2 About the book...

Multi-client functional encryption (MCFE) is an extension of functional encryption (FE) in which the decryption procedure involves ciphertexts from multiple parties. In this paper, we consider MCFE schemes supporting encryption labels, which allow the encryptor to limit the amount of...

In this paper, we present a multi-client quadratic functional encryption (MCQFE) scheme from function-hiding inner-product (FHIP). The main challenge in such construction is that all the clients require the access to the master secret key of the underlying FHIP scheme...

A double-authentication preventing signature(DAPS)scheme is a digital signature scheme equipped with a self-enforcement mechanism. Messages consist of an address and a payload component, and a signer is penalized if she signs two messages with the same addresses but different payloads...