Provably secure certificateless authenticated asymmetric group key agreement

  • Lei Zhang
  • , Qianhong Wu
  • , Bo Qin
  • , Hua Deng
  • , Jianwei Liu
  • , Wenchang Shi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

13 Scopus citations

Abstract

Asymmetric group key agreement allows a group of members to establish a public group encryption key while each member has a different secret decryption key. Knowing the group encryption key, a sender can encrypt to the group members so that only the members can decrypt. This paper studies authenticated asymmetric group key agreement in certificateless public key cryptography. We formalize the security model of certificateless authenticated asymmetric group key agreement and capture typical attacks in the real world. We next present a strongly unforgeable stateful certificateless batch multi-signature scheme as building block and realize a one-round certificatless authenticated asymmetric group key agreement protocol to resist active attacks. Both the new multi-signature scheme and the resulting group key agreement protocol are shown to be secure under the well-established computational Diffie-Hellman and the k-Bilinear Diffie-Hellman exponent assumptions in the random oracle model, respectively.

Original languageEnglish
Title of host publicationInformation Security Practice and Experience - 10th International Conference, ISPEC 2014, Proceedings
PublisherSpringer Verlag
Pages496-510
Number of pages15
ISBN (Print)9783319063195
DOIs
StatePublished - 2014
Event10th International Conference on Information Security Practice and Experience, ISPEC 2014 - Fuzhou, China
Duration: 5 May 20148 May 2014

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume8434 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference10th International Conference on Information Security Practice and Experience, ISPEC 2014
Country/TerritoryChina
CityFuzhou
Period5/05/148/05/14

Keywords

  • Certificateless public key cryptography
  • asymmetric group key agreement
  • group key agreement

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