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Key management is one of the most important issues of any secure communication. With the increasing demand for the transmission security in wireless sensor networks (WSNs), it is urgent to introduce the secure and reliable key management scheme into the WSNs. In this paper, we proposed a hierarchical key management scheme to ensure the security of the network services and applications in WSNs. Comparing...
Secure scalar product protocol is an important fundamental protocol in secure multi-party computation. Serving as a basic building block for many other secure protocols, it is widely used in data mining, statistical analysis and scientific computation. Based on additive homomorphism public key cryptosystem, we develop a new secure scalar product protocol under semi-honest model with low communication...
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