Publish/subscribe scheme for content centric MANETs

It is allowed that data of the content producer is cached anywhere in Content Centric MANET (CCMANET). This scheme decoupling of data from the data source make traditional end-end authentication transmission unavailable in CCMANET. So, it is a challenge how to ensure content publishing or subscribing only by legitimate users. In this paper, we firstly design a new Yaksha system on Elliptic Curve (EC-Yaksha), and then a secure Content Publish/Subscribe System based on EC-Yaksha (ECY-CPS) for CCMANET is proposed. In ECY-CPS, EC-Yaksha server manages joining or leaving of network users and distributes “license” only to legitimate user for content publishing or subscribing. Such, it is guaranteed that only the legitimate users can publish content to network or access content cached in network. In addition, using of the license can efficiently defend common attacks such as the interest flooding and the content pollution etc. Finally, we prove security properties of ECY-CPS in PCL and make a simple comparison between our system and the related solution.