Abstract
Current Internet architecture is becoming inadequate for new requirements of highly scalable and efficient distribution of contents. Information Centric Networking (ICN) is one of the alternatives for the Next Generation Internet (NGI), which focuses mainly on contents. In-network caching is one of the major attributes of ICN, which allows contents to be cached in any ICN node. Any user can access ICN contents from different distributed locations. This attribute maximizes the problem of unauthorized access to ICN contents. In this paper, we propose a Decentralized Access Control Protocol for ICN architectures (DACPI). In this protocol, fewer public messages are needed for access control enforcement between ICN subscribers and ICN nodes than the existing access control protocols. DACPI depends on ICN self-certifying naming scheme. We perform security analysis on DACPI for the following attacks: man-in-the-middle, forward security, replay attacks, integrity, and privacy violations. According to the security analysis, DACPI prevents unauthorized access to ICN contents with fewer messages passed.
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