International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Duong Hieu Phan

Affiliation: University of Limoges, France

Publications

Year
Venue
Title
2018
ASIACRYPT
Decentralized Multi-Client Functional Encryption for Inner Product
We consider a situation where multiple parties, owning data that have to be frequently updated, agree to share weighted sums of these data with some aggregator, but where they do not wish to reveal their individual data, and do not trust each other. We combine techniques from Private Stream Aggregation (PSA) and Functional Encryption (FE), to introduce a primitive we call Decentralized Multi-Client Functional Encryption (DMCFE), for which we give a practical instantiation for Inner Product functionalities. This primitive allows various senders to non-interactively generate ciphertexts which support inner-product evaluation, with functional decryption keys that can also be generated non-interactively, in a distributed way, among the senders. Interactions are required during the setup phase only. We prove adaptive security of our constructions, while allowing corruptions of the clients, in the random oracle model.
2017
CRYPTO
2014
CRYPTO
2014
EPRINT
2009
EUROCRYPT
2007
PKC
2005
EUROCRYPT
2004
ASIACRYPT
2003
ASIACRYPT

Program Committees

Asiacrypt 2019
Asiacrypt 2014
PKC 2010
Eurocrypt 2009