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4篇 您的检索式:作者名="HUI Lucas C.K."
    题名 作者 年代 出处 被引量
1Differential-algebraic cryptanalysis of reduced-round of Serpent-256显示文摘Differential cryptanalysis is a general cryptanalytic tool that makes use of diFFerentials over some rounds of a cipher, combined with some key bit guesses of one or two rounds. This paper introduces a new cryptanalysis strategy of block ciphers named differential-algebraic cryptanalysis. The idea of differential-algebraic cryptanalysis is to find a differential with high probability and build the multivariable system equations for the last few rounds. The subkey values of the last few rounds can be obtained by filtering the solutions of system equations instead of guessing all possible subkey values. We use the differential-algebraic cryptanalysis to break 8-round Serpent-256. Our attack can recover the 256-bit key with 283 chosen plaintexts, 2180.4 8-round Serpent- 256 encryptions and 2176.7 bytes memory. Compared with the previous differential cryptanalysis results, both the data complexity and the time complexity are reduced, but the memory requirements are increased. The time complexity and the memory requirements are very close, and a time-memory tradeoff is exploited.WANG MeiQin WANG XiaoYun HUI Lucas C.K. 2010Science China(Information Sciences)2010,53,3:2
2Checking key integrity efficiently for high-speed quantum key distribution using combinatorial group testing显示文摘Junbin Fang Zoe Lin Jiang S.M. Yiu Lucas C.K. Hui 2010Optics Communications2010,,1:1
3VANET-based secure taxi service显示文摘T.W. Chim S.M. Yiu Lucas C.K. Hui Victor O.K. Li 2013Ad Hoc Networks2013,,:1
4Integration of User-system View for Cyber Crime Analysis: A Semi-automatic Approach显示文摘There is a rapid rise in cybercrime cases. There does not exist any effective forensic methods to deal with these eybercrime cases. Investigators are required to study the details of a large amount of tedious source in order to understand the crime model and dig out the evidence. This requires a lot of effort and may result in human errors. In order to overcome these potential errors that may cause by the investigators, we propose a semi-automatic approach that integrates the user view (based on a high level study of the forensic investigator) and the system view (based on the automatic analysis of the source codes) to assist investigators in refining the scope of the investigation. The approach has been verified using a real cybercrime case and the method has been shown to be effective in assisting the investigators in refining the scope of investigation and understanding the crime model. The semi-automatic approach has improved the efficiency and reliability of the digital forensic analysis of cybercrime cases involving large volume of digital evidence from multiple sources.K.P. Chow Erica S.L. Ho Lucas C.K. Hui S.M. Yiu Tom Y.M. Lai R.S. Xu Y Mai Xiaoxi Fan 2012中国司法鉴定2012,,5:0
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