6533b872fe1ef96bd12d3021

RESEARCH PRODUCT

Secure Group Communication Using Fractional Public Keys

Sigurd EskelandVladimir A. Oleshchuk

subject

VDP::Mathematics and natural science: 400::Information and communication science: 420::Security and vulnerability: 424TheoryofComputation_MISCELLANEOUSScheme (programming language)business.industryComputer scienceKey spaceTheoryofComputation_GENERALCryptographyPublic-key cryptographySymmetric-key algorithmCommunication in small groupsCollusionbusinessKey managementcomputerComputer networkcomputer.programming_language

description

Published version of a paper presented at the ARES '10 International Conference on Availability, Reliability, and Security (c) 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. Paper also available from the publisher:http://dx.doi.org/10.1109/ARES.2010.13 In this paper, we present the novel concept of fractional public keys and an efficient zero-round multi-party Diffie-Hellman key agreement scheme that is based on fractional public keys. Shared group keys are computed highly efficiently by using the fractional public keys of multiple participants as exponents. The scheme provides therefore an efficient and elegant way of multi-party key agreement without key establishment data transmissions. The presented cryptographic scheme is collusion resistant to any number of users.

yearjournalcountryeditionlanguage
2010-02-012010 International Conference on Availability, Reliability and Security
https://doi.org/10.1109/ares.2010.13