Past Events
2022 CBER Conference
In collaboration with Management Science, the Questrom School of Business at Boston University, FinTech at Cornell – an Initiative of the SC Johnson College of…
2022-05-12
Tag: Privacy
Outlooks
Crypto in France: Structuring of the Sector and Adoption by the General Public
The Blockchain & B2B Platforms Chair at Ecole Polytechnique aims to combine academic excellence with institutional and scientific prestige in order to foster innovation in blockchain. Pioneer in its field and supported by Capgemini, Nomadic Labs and Caisse des Dépôts, is proud to have supported the production of this study conducted by KPMG France for the ADAN Association on the French and Crypto.
2022-03-18
Past Events
Cryptoeconomics Seminar
Blockchain & Digital Market Design Seminar – We consider blockchain adoption in a multiple firm market. The blockchain cost per firm decreases with the adoption rate as the cost of verification and recording is distributed…
2022-02-10
Publications
Efficient Multivariate Low-Degree Tests via Interactive Oracle Proofs of Proximity for Polynomial Codes
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 perform such low degree test for multivariate polynomials, with the…
2022-01-01
Past Events
CBER Forum – Aggelos Kiayias (IOHK/ CARDANO)
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…
2021-12-02
Outlooks
Zero-knowledge: Trust and Privacy on an Industrial Scale
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 contradiction. These technologies can be implemented either by deploying a blockchain specifically designed to integrate zero-knowledge…
2021-11-18
Past Events
Tokenomics 2021: November 18-19
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…
2021-11-18
Publications
Proceedings of Tokenomics 2020
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 outstanding invited talks and academic presentations.
2021-11-01
Publications
Multi-client Inner-product Functional Encryption in the Random-Oracle Model
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 possible mix-and-match that can take place during the decryption. This…
2021-02-01
Publications
2-Step Multi-client Quadratic Functional Encryption from Decentralized Function-Hiding Inner-Product
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, which clearly breaches the security. To overcome this challenge, we…
2021-02-01