Abstract
Wireless sensor networks (WSNs) consist of a large number of autonomous sensor nodes, spatially distributed to monitor environmental and physical conditions. As such networks use wireless environment for communication, they are highly vulnerable to security attacks. Various security solutions based on public key infrastructure (PKI) have been proposed in past. In this paper, we proposed an RSA-based certificateless signature scheme using service-oriented architecture (SOA). SOA is a type of middleware that supports application development and communication through various services deployed at every sensor node constituting the network. Random oracle model is a way to prove the security, correctness of cryptography based algorithms, which use exponential operations and hash functions. Proposed scheme provides security against type I and type II attack and reducing computation cost in signature generation phase. It has additional features viz., authentication, integrity, non-repudiation, scalability, heterogeneity, flexibility, interoperability, and reusability.
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