Simple secure PKI-based scheme for wireless sensor networks

This paper describes a simple secure scheme for wireless sensor motes. The purpose of the proposed scheme is to securely exchange data among motes by using Public Key Infrastructure (PKI) with a central authority. Key pairs are pre-distributed and signed by the Certification Authority (CA). The subsequent communication between the motes utilizes symmetric cryptography for efficiency reasons. In the first phase the scheme has been modeled and simulated by TOSSIM simulator to validate and measure its performance. Afterwards, a practical test in our Test bed has been conducted. The initial results are presented in the following paper.