The dynamic group authentication scheme for P2P based mobile commerce

Sunghyun Yun, Heuiseok Lim

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


In a typical server-client business model, a server should be in charge of both the authentication of the paid customer and the distribution of the contents. The drawback of it is that if the customers' requests go on growing rapidly for the specific contents, the quality of service is degraded due to the server overload or bandwidth restriction. On the contrary, in a P2P network, if more and more users participate in the service, the quality of service is improved, because a peer (a customer) that has same contents can act as a seeder (a server). But, the drawback of the P2P is that there are too many servers to manage, thus it’s more prone to occur illegal distribution of contents. In this paper, we propose the dynamic group authentication scheme suited to P2P based contents streaming. The proposed scheme consists of group key generation, key update, signature generation, and verification protocols. It can control the seeder's state whether the seeder is joining or leaving the network. The proposed scheme can be applied to hybrid P2P based business model where the index server covers sales transactions and the contents are distributed by the P2P protocol.

Original languageEnglish
Title of host publicationComputer Science and Its Applications - Ubiquitous Information Technologies
EditorsHwa Young Jeong, Ivan Stojmenovic, James J. Park, Gangman Yi
PublisherSpringer Verlag
Number of pages7
ISBN (Electronic)9783662454015
Publication statusPublished - 2015
Event6th FTRA International Conference on Computer Science and its Applications, CSA 2014 - Guam, United States
Duration: 2014 Dec 172014 Dec 19

Publication series

NameLecture Notes in Electrical Engineering
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119


Other6th FTRA International Conference on Computer Science and its Applications, CSA 2014
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© Springer-Verlag Berlin Heidelberg 2015.


  • Dynamic Authentication
  • Group Signature
  • Hybrid P2P
  • Mobile Commerce
  • P2P Security

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering


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