Abstract
Recently, the communication of healthcare monitoring data through wireless sensor networks has become a common practice. However, the authenticity, integrity and confidentiality of communicated data are great challenges. To solve the challenges, this article presents an efficient and provably secure proxy signature scheme with message recovery from pairings. The scheme is proven secure under adaptively chosen message attack in the random oracle model. Due to message recovery, the length of communicated signature is very short and thus our scheme is the best choice to deploy in WSN in e-healthcare monitoring systems. We prove the efficiency in terms of bandwidth required and computational cost.
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