An Secure Anonymous Group Communication in Mobile Ad-Hoc Networks

Abstract: Secure group communication with efficient self-organizing key agreement and key establishment is essential to distributed applications in mobile ad-hoc networks (MANETs). In this paper, we propose a Secure Anonymous Routing Protocol (SARP) which is able to provide confidentiality service and non-repudiation service simultaneously. SARP based on Group signature and ID-based cryptosystem for ad hoc networks. The design of SARP offers strong privacy protection completes unlinkability and content unobservability for ad hoc networks. In the proposed scheme, all group members contribute their own public keys to negotiate a shared encryption public key, which corresponds to all different decryption keys. By using the shared public key and the respective secret key, confidentiality and non-repudiation can be obtained, respectively. Both are essential to secure group communication in MANETs. Compared with the exiting anonymous routing schemes for multiple recipients. Accordingly, it is quite suitable to secure group communication in self-organizing, distributed and resource-constrained MANETs.

Keywords: Anonymous routing, key establishment, non-ruputation, group communication, MANET.