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XIANG Guang-li CHEN Xin-meng ZHU Ping MA Jie 《武汉大学学报:自然科学英文版》2006,11(1):181-184
The existing homomorphie eneryption scheme is based on ring of the integer, and the possible operators are restricted to addition and multiplication only. In this paper, a new operation is defined Similar Modul. Base on the Similar Modul, the number sets of the homomorphic encryption scheme is extended to real number, and the possible operators are extended to addition, subtraction, multiplication and division. Our new approach provides a practical ways of implementation because of the extension of the operators and the number sets. 相似文献
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A Method of Homomorphic Encryption 总被引:2,自引:1,他引:2
XIANG Guang-li~ CHEN Xin-meng~ ZHU Ping~ MA Jie~ . Department of Computer Hubei Institute of Education Wuhan Hubei China . School of Computer Wuhan University Wuhan Hubei China . School of Information Zhongnan University of Economics Law Wuhan Hubei China 《武汉大学学报:自然科学英文版》2006,11(1):181-184
0 IntroductionWittahliz tahtieo nde,vtehloepi mmepnotrt oanfc ien foofr tmhaet isoenciuzraittiyo nan adnsdec driegciy-of informationis increasingly recognized. Ordinary encryptioncan’t compute the ciphertext data, however , homomorphicencryption scheme can doit andfurthermore encrypt operationvalue automatically. Therefore, homomorphic encryptionscheme can be widely used in multi-party computation,elec-tronic voting,and mobile cryptography[1-3].Inthis paper ,theinterrelated technology of homo… 相似文献
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CHEN Gang TAN Hui CHEN Xin-meng 《武汉大学学报:自然科学英文版》2005,10(5):833-837
A formula to compute the similarity between two audio feature vectors is proposed, which can map arbitrary pair of vectors with equivalent dimension to [0,1). To fulfill the task of audio segmentation, a self-similarity matrix is computed to reveal the inner structure of an audio clip to be segmented. As the final result must be consistent with the subjective evaluation and be adaptive to some special applications, a set of weights is adopted, which can be modified through relevance feedback techniques. Experiments show that satisfactory result can be achieved via the algorithm proposed in this paper. 相似文献
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铁路货物快运服务网络鲁棒性优化方案 《山东科学》2017,30(3):65-72
针对计划期间货运需求的波动情况,构建了铁路货物快运服务网络设计鲁棒优化模型。通过对比传统铁路货物快运服务网络设计基础模型,以总运输成本最小为目标,决策内容隐含车流的中转方案和摘挂方案、列车编组计划、运到期限等运输服务约束,采用和声搜索算法对模型求解,循环迭代至获取较优结果。研究结果表明,鲁棒优化模型对运输需求变动的适应性较强,且运到期限增大,总成本减少。 相似文献
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Routing and wavelength assignment for online real-time multicast connection setup is a difficult task due to the dynamic change
of availabilities of wavelengths on links and the consideration of wavelength conversion delay in WDM networks. This paper
presents a distributed routing and wavelength assignment scheme for the setup of real-time multicast connections. It integrates
routing and wavelength assignment as a single process, which greatly reduces the connection setup time. The proposed routing
method is based on the Prim’s MST (Minimum Spanning Tree) algorithm and the K-restricted breadth-first search method, which
can produce a sub-minimal cost tree under a given delay bound. The wave-length assignment uses the least-conversion and load
balancing strategies. Simulation results show that the proposed algorithm is suitable for online multicast connection establishment
in WDM networks.
Biography: Huang Chuan-he(1963-), male, Associate professor, research direction: computer networks, distributed computing
systems, quantum computation. 相似文献