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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 Laboratory of information security 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 information 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 security.

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

A new approach toward object-based change detection

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Science china(Technological Sciences) 2010年第S1期53卷 105-110页

作者： ZHANG Guo1,2,LI Yang1 & LI ZhiJiang3 1 State Key Laboratory of information engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,china 2 Satellite of Surveying and Mapping Application center,State Bureau of Surveying and Mapping,beijing 100830,china 3 School of Printing and Packaging,Wuhan University,Wuhan 430079,china Wuhan Univ State Key Lab Informat Engn Surveying Mapping & R Wuhan 430079 Peoples R China State Bur Surveying & Mapping Satellite Surveying & Mapping Applicat Ctr Beijing 100830 Peoples R China Wuhan Univ Sch Printing & Packaging Wuhan 430079 Peoples R China

Object-based change detection has been the hotspot in remote sensing image processing.A new approach toward object-based change detection is *** two different temporal images are unitedly segmented using the mean shift procedure to obtain corresponding *** change detection is implemented based on the integration of corresponding objects’ intensity and texture *** are conducted on both panchromatic images and multispectral images and the results show that the integrated measure is robust with respect to illumination changes and *** color detection is conducted to determine whether the color of the unchanged objects changes or not when dealing with multispectral *** verification work is carried out to show the accuracy of the proposed approach.

关键词： mean shift united segmentation change detection object-based intensity texture integration

Asymmetric encryption and signature method with DNA technology

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Science china(information Sciences) 2010年第3期53卷 506-514页

作者： LAI XueJia1, LU MingXin2, QIN Lei3, HAN JunSong4 & FANG XiWen11Department of Computer Science & engineering, Shanghai Jiao Tong University, Shanghai 200030, china 2School of national information security, Nanjing University, Nanjing 210093, china 3BIOCOMPLEX, 4915 Bathurst St. Unit# 209-366, ON M2R 1X9, Canada 4national engineering center for BioChip at Shanghai, Shanghai 201203, china 1. Department of Computer Science & engineering Shanghai Jiao Tong University Shanghai 200030 China2. School of National Information Security Nanjing University Nanjing 210093 China3. BIOCOMPLEX 4915 Bathurst St. Unit# 209-366 Toronto ON M2R 1X9 Canada4. National Engineering Center for BioChip at Shanghai Shanghai 201203 China

This paper proposes DNA-PKC, an asymmetric encryption and signature cryptosystem by combining the technologies of genetic engineering and cryptology. It is an exploratory research of biological cryptology. Similar to conventional public-key cryptology, DNA-PKC uses two pairs of keys for encryption and signature, respectively. Using the public encryption key, everyone can send encrypted message to a specified user, only the owner of the private decryption key can decrypt the ciphertext and recover the message; in the signature scheme, the owner of the private signing key can generate a signature that can be verified by other users with the public verification key, but no else can forge the signature. DNA-PKC differs from the conventional cryptology in that the keys and the ciphertexts are all biological molecules. The security of DNA-PKC relies on diffcult biological problems instead of computational problems; thus DNA-PKC is immune from known attacks, especially the quantum computing based attacks.

关键词： cryptology asymmetric encryption digital signature biological cryptology DNA

information extraction and CT reconstruction of liver images based on diffraction enhanced imaging

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Progress in Natural Science:Materials International 2009年第8期19卷 955-962页

作者： Chunhong Hua,b, Tao Zhao a, Lu Zhanga, Hui Lia, Xinyan Zhao c, Shuqian Luoa, a College of Biomedical engineering, Capital Medical University, beijing 100069, china b national Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, beijing 100080, china c Liver research center, beijing Friendship Hospital, Capital Medical University, beijing 100050, china [a]College of Biomedical engineering Capital Medical University Beijing 100069 China [b]National Laboratory of Pattern Recognition Institute of Automation Chinese Academy of Sciences Beijing 100080 China [c]Liver Research Center Beijing Friendship Hospital Capital Medical University Beijing 100050 China

X-ray phase-contrast imaging (PCI) is a new emerging imaging technique that generates a high spatial resolution and high contrast of biological soft tissues compared to conventional radiography. Herein a biomedical application of diffraction enhanced imaging (DEI) is presented. As one of the PCI methods, DEI derives contrast from many different kinds of sample information, such as the sample’s X-ray absorption, refraction gradient and ultra-small-angle X-ray scattering (USAXS) properties, and the sample information is expressed by three parametric images. Combinedwith computed tomography (CT), DEI-CT can produce 3D volumetric images of the sample and can be used for investigating micro-structures of biomedical samples. Our DEI experiments for liver samples were implemented at the topography station of beijing Synchrotron Radiation Facility (BSRF). The results show that by using our provided information extraction method and DEI-CT reconstruction approach, the obtained parametric images clearly display the inner structures of liver tissues and the morphology of blood vessels. Furthermore, the reconstructed 3D view of the liver blood vessels exhibits the micro blood vessels whose minimum diameter is on the order of about tens of microns, much better than its conventional CT reconstruction at a millimeter resolution. In conclusion, both the information extraction method and DEI-CT have the potential for use in biomedical micro-structures analysis.

关键词： Diffraction enhanced imaging Computed tomography information extraction X-ray Liver

Novel encryption model for multimedia data

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Journal of Systems engineering and Electronics 2009年第5期20卷 1081-1085页

作者： Ye Dengpan~(1,2) & Lian Shiguo~3 1.The Key Laboratory of Aerospace information security and Trust Computing,Ministry of Education,Wuhan 430072,P.R.china 2.School of Computer Science,Wuhan Univ.,Wuhan 430072,P.R.china 3.France Telecom R&D beijing,beijing 100080,P.R.china The Key Laboratory of Aerospace information security and Trust Computing Ministry of Education Wuhan 430072 P. R. China School of Computer Science Wuhan Univ. Wuhan 430072 P. R. China France Telecom R&D beijing Beijing 100080 P. R. China

A novel encryption model is proposed. It combines encryption process with compression process, and realizes compression and encryption at the same time. The model＇s feasibility and security are analyzed in detail. An... 详细信息

关键词： multimedia encryption model compression feasibility security.

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改进的基于漫游场景的认证密钥交换协议

通信学报 2009年第S2期30卷 61-68页

作者：周涛徐静中国科学院研究生院信息安全国家重点实验室北京100190 信息安全共性技术国家工程研究中心北京100190 中国科学院软件研究所信息安全国家重点实验室北京100190

由于动态性和易受攻击的结构特性,无线网络环境下认证协议的设计面临新的挑战。2006年,全球移动网络漫游场景下的2个双向认证密钥交换协议被提出。经过分析发现,这2个协议都会遭受到一些实际的攻击。进一步的,2个改进的协议被提出用于... 详细信息

由于动态性和易受攻击的结构特性,无线网络环境下认证协议的设计面临新的挑战。2006年,全球移动网络漫游场景下的2个双向认证密钥交换协议被提出。经过分析发现,这2个协议都会遭受到一些实际的攻击。进一步的,2个改进的协议被提出用于抵御这些攻击。这2个协议不仅保留了原方案的优点,还提高了第2个方案的效率。

关键词：无线通信漫游认证密钥交换匿名性

Further research on high-spin structure in ^(161)Lu

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Science china(Physics,Mechanics & Astronomy) 2008年第3期51卷 315-320页

作者： LI YanXia1,2,YU ShaoYing1,2,4,SHEN CaiWan1,5,LI XiaoWei6 & CHEN YongShou3,4 1 School of Science,Huzhou Teachers College,Huzhou 313000,china 2 College of Mathematics,Physics and information engineering,Zhejiang Normal University,Jinhua 321000,china 3 china Institute of Atomic Energy,beijing 102413,china 4 Institute of Theoretical Physics,Chinese Academy of Sciences,beijing 100080,china 5 center of Theoretical Nuclear Physics,national Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,china 6 Department of Physics,Chifeng University,Chifeng 024001,china School of Science Huzhou Teachers College Huzhou 313000 China College of Mathematics Physics information engineering Zhejiang Normal University Jinhua 321000 China china Institute of Atomic Energy Beijing 102413 China Institute of Theoretical Physics Chinese Academy of Sciences Beijing 100080 China center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Accelerator of Lanzhou Lanzhou 730000 China Department of Physics Chifeng University Chifeng 024001 China

The two-dimensional total routhian surface (TRS) calculations were performed to probe into the triaxial superdeformed characteristics of a strongly populated band X2 in 161Lu. This band was identified as a triaxial superdeformed band by using our TRS method. We also got its formation mechanics,i.e. the neutron-shell correction energy plays a crucial role,while the rotating energy and the deformation-driving effect of high j intruder orbit i13/2 also play an additional role.

关键词： TRS method triaxial superdeformation formation mechanism

ON-DEMAND GEO-COMPUTING: AN EASY WAY FOR AGRICULTURAL APPLICATION OF GEO-COMPUTING

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ON-DEMAND GEO-COMPUTING: AN EASY WAY FOR AGRICULTURAL APPLIC...

P2P traffic optimization

第四届智能化农业信息技术国际学术会议

作者： Jian Wang Chunjiang Zhao national engineering research center for information Technology in Agriculture 100097 beijing china

＜正＞By discussing Grid GIS,UbiGIS and OpenGIS, and analyzing the challenges that current geo- computing facing,the paper concludes that geo- computing should be more suitable for common people to understand and *** and supported by on demand computing,the paper presents a geo-computing strategy termed on-demand geo-computing （ODGC）.Comparing with Grid GIS,UbiGIS and OpenGIS,the paper suggests that ODGC focus on the strategy that provides users with geo-computing capabilities on their *** paper breaks the on-demand feature into suitability, temporal-validity and easy-to-use features,and develops a conceptual model termed geo-VO to achieve these ***-VO is the fusion of virtual organization,information supply chain and geospatial information value-add ***-VO functions as both geo-computing domain reference model and coordinative computing model of distributed geo-computing ***-task-VO is another conceptual model that describes how ODGC *** paper discusses ODGC philosophy by geo-VO and geo-task-VO and the ingredients that enable the agileness,easy-to-use and on-demand *** illustrate and provide an intuitive picture of ODGC,an example termed geographical cartography service is developed to explain how an ODGC application and service is developed and *** the end,the paper concludes ODGC and suggests the future studies.

关键词： Geo-computing On demand computing Grid computing Grid GIS Ubiquitous computing UbiGIS Web services

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Science china(information Sciences) 2012年第7期55卷 1475-1492页

作者： ZHANG GuoQiang 1,2 ,TANG MingDong 3 ,CHENG SuQi 2,4 ,ZHANG GuoQing 2 ,SONG HaiBin 5 ,CAO JiGuang 6 & YANG Jing 7 1 School of Computer Science and Technology,Nanjing Normal University,Nanjing 210046,china 2 Institute of Computing Technology,Chinese Academy of Sciences,beijing 1.01.0,china 3 School of Computer Science and engineering,Hunan University of Science and Technology,Xiangtan 411201,china 4 Graduate University of Chinese Academy of Sciences,beijing 1.01.0,china 5 Nanjing R&D center,Huawei Technologies,Nanjing 210012,china 6 china Academy of Telecommunication research of MIIT,beijing 100191,china 7 china Mobile research Institute,beijing 100053,china 1. School of Computer Science and Technology Nanjing Normal University Nanjing 210046 China2. Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China3. School of Computer Science and Engineering Hunan University of Science and Technology Xiangtan 411201 China4. Graduate University of Chinese Academy of Sciences Beijing 100190 China5. Nanjing R&D Center Huawei Technologies Nanjing 210012 China6. China Academy of Telecommunication Research of MIIT Beijing 100191 China7. China Mobile Research Institute Beijing 100053 China

Peer-to-peer (P2P) based content distribution systems have emerged as the main form for content distribution on the Internet,which can greatly reduce the distribution cost of content providers and improve the overall system ***,the mismatch between the overlay and underlay networks causes large volume of redundant traffic,which intensifies the tension between P2P content providers and ***,how to efficiently use network resources to reduce the traffic burden on the ISPs is crucial for the sustainable development of P2P *** paper surveys the state-of-art P2P traffic optimization technologies from three perspectives:P2P cache,locality-awareness and data *** details,comparison between these technologies and their applicabilities are presented,followed by a discussion of the issues that remain to be addressed and the direction of future content distribution research.

关键词： P2P traffic localization P2P traffic optimization P2P cache locality-awareness network coding content-centric network