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Proofs of Retrievability (POR) is a scheme to build a verifiable storage on a remote server that a client can access the data randomly, and periodically execute an efficient Audit protocol to ensure that the data is intact. In dynamic POR, the difficulties are to maintain the latest version of the data while achieving efficient Update and Audit. In this paper, we propose PDPOR that achieves the best...
Security verification and performance analysis are both crucial aspects for designing effective and efficient authentication protocols. However, in most authentication protocol design practice, two independent models are often adopted for individual security verification and performance analysis, which could not guarantee that performance improvements taking no harm to its security functionalities...
In this paper, first, the technology of virtual private network (VPN) is presented, and a comparison of several tunnel technology is given. Secondly the structure of IPSec protocol is introduced, and FreeS/WAN software realization IPSec protocol based Linux is made a particular analysis. At last, the VPN gateway is realized by applying FreeS/WAN soft under Linux.
A distributed communication gateway, which can be used in distribution system, is proposed in this paper, and a new mechanism used with network gateway to adapt to multilevel and multi-node integrative networks. Many types of GPS terminals in navigation system result in division in navigational resources and information. To solve this problem, communication gateways are employed in navigation system...
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