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Technical advances in ubiquitous sensing, embedded computing, and wireless communication are leading to a new generation of engineered systems called cyber-physical systems (CPS). CPS promises to transform the way we interact with the physical world just as the Internet transformed how we interact with one another. Before this vision becomes a reality,(More)
Proxy signatures are signature schemes that a signer (called original signer) delegates his signing capability to other people (called proxy signer), and the proxy signer creates signatures on behalf of the original signer. In application such as electronic voting and electronic commerce, the privacy may be concerned by the original signer. The original(More)