A Layered Architecture for Checking Rewriting Attacks in Resource Constrained Networks

A layered architecture is necessary for choosing the level of security in resource constrained networks (RCNs). Depending upon the resource constraints and the required trust level, users can then select any/all of the layers. This paper presents a layered architectural approach for checking the rewriting attacks in RCNs. It consists of two layers. The rewriting attacks are checked using policy specifications in the lower layer where as the checking in the upper layer is done using a modified accounting information. This scheme is based on a format for data representation with reduced number of bytes, derived from the YAML Aint Markup Language (YAML), a light weight data serialization language. The performance of this format is evaluated in comparison with the existing standard formats and the results are encouraging.