The crowdsourcing-based parking reservation system is a new computing paradigm, where private owners can rent their parking\nspots out. Security is the main concern for parking reservation systems. However, current schemes cannot provide user privacy\nprotection for drivers and have no key agreement functions, resulting in a lot of security problems. Moreover, current schemes\nare typically based on the time-consuming bilinear pairing and not suitable for real-time applications. To solve these security and\nefficiency problems, we present a novel security protocol with user privacy called SCPR. Similar to protocols of this field, SCPR can\nauthenticate drivers involved in the parking reservation system. However, different from other well-known approaches, SCPR uses\npseudonyms instead of real identities for providing user privacy protection for drivers and designs a novel pseudonym-based key\nagreement protocol. Finally, to reduce the time cost, SCPR designs several novel cryptographic algorithms based on the algebraic\nsignature technique. By doing so, SCPR can satisfy a number of security requirements and enjoy high efficiency. Experimental\nresults show SCPR is feasible for real world applications.
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