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Polar differential power attacks and evaluation

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Science China(information Sciences) 2012年第7期55卷 1588-1604页

作者： TANG Ming 1 ,QIU ZhenLong 1 ,GAO Si 1,2.,YI Mu 3 ,LIU ShuBo 1 ,ZHANG HuanGuo 1 & JIN YingZhen 1 1 School of Computer Science,Wuhan University,Wuhan 4.0072.China 2.state {2. laboratory of {2. {4.,institute of software,chinese academy of Sciences,beijing 100190,China 3 Centre for Computer and {2. {4. Research School of Computer Science and {12. Engineering University of Wollongong,Wollongong,NSW 2.2.,Australia School of Computer Science Wuhan University Wuhan China state key {2. of {2. {4. Institute of Software Chinese Academy of Sciences Beijing China Centre for Computer and information security Research School of Computer Science and {2. Engineering University of Wollongong Wollongong Australia

Side channel attacks (SCAs) on security software and hardware have become major concerns on computer and system *** existing SCAs generally require the knowledge of the corresponding cryptographic algorithm and implementation adopted in the target; therefore,they are not fully suitable for practical *** this paper,we propose a novel SCA-polar differential power attack (polar DPA).We found that DPA peaks have different biases for different cryptographic algorithms and *** on these biases,we can successfully attack a block cipher,assuming that the cipher algorithm uses a secret {2. in its first round,without the knowledge of the cipher algorithm or *** rounds can be treated as a black *** present a detailed theoretical analysis and experiment to demonstrate the correctness and efficiency of our ***,our scheme has demonstrated an improvement over the leakage evaluation scheme due to Ichikawa et al.(CHES 2.05).Our evaluation method can be used in electronic design automatic (EDA) flows and can help security circuit designers to understand the data leakage due to SCAs.

关键词： computer security differential power attack side channel attack

Transport network and flow mechanism of shallow ore-bearing magma in Tongling ore cluster area

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Science China Earth Sciences 2006年第4期49卷 397-407页

作者： DENG Jun1,2. WANG Qingfei1,2., HUANG Dinghua3 , WAN Li4. YANG Liqiang1,2.& GAO Bangfei1,2.1. state {2. laboratory of Geological Processes and Mineral Resources, China University of Geosciences, {2. 100083, China 2. {2. laboratory of Lithosphere Tectonics and Lithoprobing Technology of Ministry of Education, China University of Geo- sciences, {2. 100083, China 3. Faculty of Earth Sciences, China University of Geosciences, Wuhan 4.0074. China 4. School of Mathematics and information Science, Guangzhou University, Guangzhou 5104.5, China state key {2. of Geological Processes and Mineral Resources China University of Geosciences Beijing China key laboratory of Lithosphere Tectonics and Lithoprobing Technology of Ministry of Education China University of Geosciences Beijing China Faculty of Earth Sciences China University of Geosciences Wuhan China School of Mathematics and information Science Guangzhou University Guangzhou China

Abundant studies revealed that shallow intrusions of the Yanshanian epoch resulted in the mass mineralization of the Tongling region. Various evidences showed there existed a concealed magma chamber at ?10 km depth in the middle part of this region during Yanshanian epoch, from which the ore-forming magma was generated and then transported to the superficial layer. Yet the transport network and flow mechanism of the shallow ore-bearing magma, the key problem associ- ated with ore-forming process, was relatively little focused on. Integrate analysis of structural me- chanics, statistical fractal and geological facts suggested that NE trending high-angle fold-related thrust faults and the tessellated basement ones served as the main pathways for the shallow magma’s transporting, moreover, the saddle void spaces among adjacent strata in the folds upon this fault system provided the place for magma’s emplacement. So the folds in the upper part and faults in the lower part of the upper crust constituted the fluid’s transport and emplacement network. During the deformation of geologic body with multi-layer structure, the layers in the upper part tended to fold when received the jacking stress from the lower part, while the lower one inclined to fault undergoing loads of the upper part. And the producing probability of this structure assemblage was highly in- creased in the condition, such as in the Tongling area, that the mechanic rigidity of the lower layers was stronger than that of the upper ones. For the pre-existence of fluid-conducting network, the top magma with high volatile in the magma chamber transported rapidly to the superficial layer in dyking pattern, located in the void spaces of folds, filled and reconstructed them. The sudden drop of pres- sure caused the fluid unmixing from the magma and mass ore-forming elements concentration. Pulse activity of the dyking may be the principal reason why magmatic bodies in the Tongling area were spatially-temporally con

关键词： Tongling, structural network, magma intrusion, fractal, dyke.

Entropy product measure for multipartite pure states

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Science China(Physics,Mechanics & Astronomy) 2006年第5期49卷 606-615页

作者： CAO Wancang1,2. LIU Dan2. PAN Feng3 & LONG Guilu2.4.1. Department of Physics, Chifeng College, Chifeng 02.0}01, China 2. {2. laboratory for Quantum information and Measurements, Department of Physics, Tsinghua University, {2. 100084. China 3. Department of Physics, Liaoning Normal University, Dalian 11602., China 4. {2. laboratory for Atomic and Molecular Nano-Sciences, Tsinghua University, {2. 100084. China Correspondence should be addressed to Long Guilu Department of Physics Chifeng College Chifeng China key laboratory for Quantum {2. and Measurements Department of Physics Tsinghua University Beijing China Department of Physics Liaoning Normal University Dalian China key laboratory for Atomic and Molecular Nano-Sciences Tsinghua University Beijing China

An entanglement measure for multipartite pure states is formulated using the product of the von Neumann entropy of the reduced density matrices of the constituents. Based on this new measure, all possible ways of the maximal entanglement of the triqubit pure states are studied in detail and all types of the maximal entanglement have been compared with the result of ‘the average entropy’. The new measure can be used to calculate the degree of entanglement, and an improvement is given in the area near the zero entropy.

关键词： multipartite pure state von Neumann entropy entanglement measure

Polynomial analysis of canopy spectra and biochemical component content inversion

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Science China Earth Sciences 2005年第10期48卷 1780-1791页

作者： YAN Chunyan1, LIU Qiang1, NIU Zheng1, WANG Jihua2. HUANG Wenjiang2.& LIU Liangyun 2.1. state key {2. of Remote Sensing Science, Jointly Sponsored by the {2. of Remote Sensing Applications of {4. academy of Sciences and beijing Normal University, beijing 100101, China 2. National Engineering Research Center for information Technology in Agriculture, beijing 100089, China Jointly Sponsored by the institute of Remote Sensing Applications of chinese {2. of Sciences and beijing Normal University National Engineering Research Center for information Technology in Agriculture

A polynomial expression model was developed in this paper to describe directional canopy spectra, and the decomposition of the polynomial expression was used as a tool for re-trieving biochemical component content from canopy multi-angle spectra. First, the basic formula of the polynomial expression was introduced and the physical meaning of its terms and coeffi-cients was discussed. Based on this analysis, a complete polynomial expression model and its decomposition method were given. By decomposing the canopy spectra simulated with SAILH model, it shows that the polynomial expression can not only fit well the canopy spectra, but also show the contribution of every order scattering to the whole reflectance. Taking the first scattering coefficients a10 and a01 for example, the test results show that the polynomial coefficients reflect very well the hot spot phenomenon and the effects of viewing angles, LAI and leaf inclination angle on canopy spectra. By coupling the polynomial expression with leaf model PROSPECT, a canopy biochemical component content inversion model was given. In the simulated test, the canopy multi-angle spectra were simulated by two different models, SAILH and 4.SCALE re-spectively, then the biochemical component content was retrieved by inverting the coupled polynomial expression + PROSPECT model. Results of the simulated test are promising, and when applying the algorithm to measured corn canopy multi-angle spectra, we also get relatively accurate chlorophyll content. It shows that the polynomial analysis provides a new method to get biochemical component content independent of any specific canopy model.

关键词： polynomial expression, canopy spectra, decomposition, biochemical component content, inversion.

Capability description and discovery of Internetware entity

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Science China(information Sciences) 2010年第4期53卷 685-703页

作者： WANG PuWei1*, JIN Zhi2.3* & LIU HongYan4.1key {2. of Data Engineering and Knowledge Engineering of the Ministry of Education, Renmin University of China, beijing 100872. China 2.1} {2. of High Confidence software Technologies of the Ministry of Education, Peking University, beijing 100871, China 3academy of Mathematics and System Sciences, chinese academy of Sciences, beijing 100190, China 4.epartment of Management Science and Engineering, Tsinghua University, beijing 100084. China key laboratory of Data Engineering and Knowledge Engineering of the Ministry of Education Renmin University of China Beijing China key laboratory of High Confidence {2. Technologies of the Ministry of Education Peking University Beijing China academy of Mathematics and System Sciences Chinese Academy of Sciences Beijing China Department of Management Science and Engineering Tsinghua University Beijing China

Internetware can be formed through aggregation of Internetware entities bottom-up to satisfy the user's requirements. In the process, capability description of Internetware entity plays an important role. This paper proposes a capability description of Internetware entity based on environment ontology. The environment ontology includes environment entities and possible interactions with the environment entities in a particular domain. Tree-like hierarchical state machines are also included in the ontology to describe domain life-cycle of the environment entities. On the basis of the ideas, the capability of Internetware entity is embodied by interacting with environment entities and the changes of the environment entities during the interactions. Finally, this paper describes the matchmaking between capability descriptions of Internetware entities to support the discovery of Internetware entity. An example of online education course is given to illustrate the ideas.

关键词： Internetware capability description domain environment ontology tree-like hierarchical state machine

Optimization of mathematical models for thematic maps

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Science China(Technological Sciences) 2010年第S1期53卷 15-24页

作者： QI QingWen1,ZHANG An1,JIANG LiLi1,ZOU XiuPing2.XU Li3 & CHENG Xi1,4.1 institute of Geographical Sciences and Natural Resources Research,{2. {2. of Sciences,beijing 100101,China 2.institute of Policy and Management,{2. {2. of Sciences,beijing 100080,China 3 Taishan University,Taian 2.102.,China 4.Graduate University of {2. {2. of Sciences,{12.,China institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China institute of Policy and Management Chinese Academy of Sciences Beijing China Taishan University Taian China Graduate University of chinese academy of Sciences Beijing China

The thematic map is a major class of maps designed to demonstrate particular features or concepts,functioning as an indispensable tool in geographical *** process of thematic mapping is one into which geographical research goes deeply and *** key activity and course of thematic map production is the use of mathematical models to create thematic data ***,the selection and optimization of mathematical models is in the forefront of thematic map *** theoretical foundations,mechanisms and methods of mathematical model optimization are expounded in this paper,including two approaches,the phase by phase mode and the multi-aim scheme balance *** studies in eco-environment mapping and emergency mapping are described and analyzed,with a hierarchical analysis method being used in the model optimization for eco-environment fragility and sensitivity assessment mapping in Beibuwan (Guangxi) District,the dynamic system (DS) method being used in the model optimization for ecological security adjustment mapping in Xishuang Banna,Yunnan province,and the multi-phase mode being used in the models for forest fire and infectious diseases mapping.

关键词： thematic map mathematic model optimization

A novel quantum information hiding protocol based on entanglement swapping of high-level Bell states

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chinese Physics B 2015年第5期24卷 231-238页

作者：徐淑奖陈秀波王连海钮心忻杨义先 Shandong Provincial key laboratory of Computer Networks Shandong Computer Science Center (National Supercomputer Center in Jinan) information security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and Telecommunications state key {2. of {2. {4. Institute of Information Engineering Chinese Academy of Sciences

Using entanglement swapping of high-level Bell states, we first derive a covert layer between the secret message and the possible output results of the entanglement swapping between any two generalized Bell states, and then propose a novel high-efficiency quantum {2. hiding protocol based on the covert layer. In the proposed scheme, a covert channel can be built up under the cover of a high-level quantum secure direct communication （QSDC） channel for securely transmitting secret messages without consuming any auxiliary quantum state or any extra communication resource. It is shown that this protocol not only has a high embedding efficiency but also achieves a good imperceptibility as well as a high {4..

关键词： quantum information hiding quantum covert'channel entanglement swapping high-level Bell states

Lithosphere types in North China:Evidence from geology and geophysics

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Science China Earth Sciences 2005年第11期48卷 1809-1827页

作者： QIU Ruizhao1,2. DENG Jinfu3, ZHOU Su3, LI Jinfa4. XIAO Qinghui1,5, WU Zongxu6 & LIU Cui3 1. institute of Geology, {2. {2. of Geological Sciences, beijing 100037, China 2. Development and Research Center, China Geological Survey, beijing 100037, China 3. China University of Geosciences, beijing 100083, China 4. China University of Geosciences, Wuhan 4.0074. China 5. information Center of Ministry of Land and Resources, beijing 100812. China 6. institute of Geology, state Seismological Bureau, beijing 10002., China institute of Geology Chinese Academy of Geological Sciences Beijing China Development and Research Center China Geological Survey Beijing China China University of Geosciences Beijing China China University of Geosciences Wuhan China information Center of Ministry of Land and Resources Beijing China institute of Geology State Seismological Bureau Beijing China

On the basis of the characteristics of geology and geophysics in North China, three types of lithosphere, namely, the cratonic, the orogenic and the rift lithospheres can be classified. In terms of petrological method (based on the information from Precambrian rock assemblages, igneous activities, deep-seated enclaves, etc.) and the relationship between seismic velocity and rock compositions, the crust-mantle petrological and chemical structure models can be set up. Researching results indicate that the geology and geophysics of North China platform bears the similar characteristics in comparison with those of the global typical cratons. The Eerduosi(Ordos) block located in the west of the North China Platform is a remnant of cratonic lithosphere after the North China platform had undergone “activation” in Mesozoic and “reconstruction” in Cenozoic times. The continental crust consists mainly of TTG rock assemblage while the subcontinental lithosphere mantle mainly consists of strongly depleted harzburgite. The craton was finally formed in late Archaean and early Proterozoic, and has been kept in stability up to present; its crustal-mantle petrological structures of lithosphere can be set up as a reference for the study of North China craton and even Sino-Korean craton. In the Mesozoic period, the middle and east areas of North China platform were activated in the Yanshanian orogenic process, the continental crust was reformed by material and heat-transfer of convective mantle and the original crustal TTG component was reconstructed to be granitic crust, and the subcontinental lithosphere man- tle was replaced by the Yanshanian harzburgite-lherzolite. The Yanshan-Taihang Mountains were the remnants of orogenic lithosphere after the rifting in eastern North China in Cenozoic. The present thickness of continental crust and lithosphere in the Yanshan-Taihang Mountains is not equal to their thickness during the Yanshanian orogenic movement because they had undergone the

关键词： lithospheric types,evidence of geology and geophysics,crust-mantle petrological structure,deep process

Screening of Proteins Interacting with Nonstructural 1 Protein of H5N1 Avian Influenza Virus from T7-phage Display Library

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Chemical Research in chinese Universities 2012年第1期28卷 103-107页

作者： ZHU Chun-yu1,2. SUN Ting-ting2. ZHAO Jian1,2. WANG Ning1,2. ZHENG Fang-liang1, AI Hai-xin1, ZHU Jun-feng1,2. WANG Xiao-ying3, ZHU Ying4. WU Jian-guo4.and LIU Hong-sheng1,2.1. {2. laboratory of Animal Resource and Epidemic Disease Prevention of Liaoning Province, 2. Research Center for Computer Simulating and information Processing of Bio-macromolecules of Liaoning Province, {2. of Science, Liaoning University, Shenyang 110036, P. R. China 3. {4. of Nutrition and Food Safety, chinese Center for Disease Control and Prevention, beijing 100050, P. R. China 4. state {2. laboratory of Virology, Wuhan University, Wuhan 4.0072. P. R. China Research Center for Computer Simulating and information Processing of Bio-macromolecules of Liaoning Province Academy of Science Liaoning University Key Laboratory of Animal Resource and Epidemic Disease Prevention of Liaoning Province Shenyang 110036 Research Center for Computer Simulating and information Processing of Bio-macromolecules of Liaoning Province Academy of Science Liaoning University Shenyang 110036 Liaoning University Key Laboratory of Animal Resource and Epidemic Disease Prevention of Liaoning Province Shenyang 110036 institute of Nutrition and Food Safety Chinese Center for Disease Control and Prevention Beijing 100050 Wuhan University State Key Laboratory of Virology Wuhan 430072

Avian influenza virus（AIV） nonstructural 1（NS1） gene was amplified by real-time polymerse chain reac tion（RT-PCR） and inserted into pET2.a, then transformed into E. coli BL2.（DE3） competent cell. With the induction of isopropyl-β-D-thiogalactoside（IPTG） and the purification of Ni-NTA column, we finally obtained purified NS1 protein. T7-phage display system was used to screen the proteins that interacted with NS1 from lung cell cDNA li brary. The selected positive clones were identified by DNA sequencing and analyzed by BLAST program in Gene Bank. Two proteins were obtained as NS1 binding proteins, Homo sapiens nucleolar and coiled-body phosphoprotein 1（NOLC1） and Homo sapiens similar to colon cancer-associated antigen. By co-immunoprecipitation and other me thods, Homo sapiens NOLC1 was found to interact with the NS1 protein, the results would provide the basis for fur ther studying biological function of NS1 protein.

关键词： T7-phage display Nonstructural 1 (NS 1) protein Interacting protein