On-demand public-key management for mobile ad hoc networks

Ruidong Li, Jie Li, Peng Liu, Hsiao Hwa Chen

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


A mobile ad hoc network (MANET) is the cooperative engagement of a collection of wireless mobile nodes without the aid of any established infrastructure or centralized administration. The conventional security solutions to provide key management through accessing trusted authorities or centralized servers are infeasible for this new environment since mobile ad hoc networks are characterized by the absence of any infrastructure, frequent mobility, and wireless links. In this paper, we propose an on-demand, fully localized, and hop-by-hop public key management scheme for MANETs. It can be performed by generating public/private key pairs by nodes themselves, issuing certificates to neighboring nodes, holding these certificates in their certificate repositories, and providing authentication service adaptive quickly to the dynamic topology of the network without relying on any servers. Also, our scheme can be performed successfully as long as there is a physical communication line between two nodes, and it is accustomed well to the on-demand routing for MANETs.

Original languageEnglish (US)
Pages (from-to)295-306
Number of pages12
JournalWireless Communications and Mobile Computing
Issue number3
StatePublished - May 2006

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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