Distributed Parameter Generation for Bilinear Diffie Hellman Exponentiation and Applications

Aggelos Kiayias, Ozgur Oksuz, Qiang Tang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Distributed parameter and key generation plays a fundamental role in cryptographic applications and is motivated by the need to relax the trust assumption on a single authority that is responsible for producing the necessary keys for cryptographic algorithms to operate. There are many well-studied distributed key generation protocols for the discrete logarithm problem. In this paper, building upon previous distributed key generation protocols for discrete logarithms, we provide two new building blocks that one can use them in a sequential fashion to derive distributed parameter generation protocols for a class of problems in the bilinear groups setting, most notably the n-Bilinear Diffie Hellman Exponentiation problem. Based on this we present new applications in distributed multi-party oriented cryptographic schemes including decentralized broadcast encryption, revocation systems and identity based encryption.
Original languageEnglish
Title of host publicationInformation Security: 18th International Conference
Subtitle of host publicationISC 2015, Trondheim, Norway, September 9-11, 2015, Proceedings
EditorsJavier Lopez, Chris J. Mitchell
Place of PublicationCham
PublisherSpringer International Publishing
Pages548-567
Number of pages20
ISBN (Electronic)978-3-319-23318-5
ISBN (Print)978-3-319-23317-8
DOIs
Publication statusPublished - Aug 2015

Publication series

NameLecture Notes in Computer Science (LNCS)
PublisherSpringer International Publishing
Volume9290
ISSN (Print)0302-9743

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