Yan-Qin Zhu

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Given the emergence of veriflable computation, it has made an approach to deal with the security bottlenecks in cloud computing. In this paper, we present two public veriflable delegation schemes for polynomials and matrix multiplication. Since cloud providers may not be trusted, a weak client will outsource a function f and encoded input sx. After(More)
Active measurement on peer-to-peer system is the best way to provide the real data for the system simulation and optimization. Based on coupon collector's problem, an optimized tracing model was proposed to guide the active measurement on BitTorrent swarm. With the optimization of lowering expectations and requesting concurrently, the information repetition(More)
In a P2P video-on-demand (VoD) system, the asynchronous characteristic of users' random seeking makes data sharing among peers more challenging, and raises very high capability requirement of the source video server. In this paper, we propose adding one more server in a P2P VoD system to support the random seeking operations and investigate the capacity(More)
Multicast over MPLS networks can merge the their advantages, but is still accompanied many problems mainly on scalability. In this paper, we propose an architecture for deploying bidirectional multicast shared trees in MPLS networks (BIDIR-MMST). Tree manager server (TMS) collects the positions of all multicast group members and computes the topology of(More)
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