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Steganalysis and improvement of a quantum steganography protocol via a GHZ_4 state

Chinese Physics B 2013年第6期22卷 199-202页

作者：徐淑奖陈秀波钮心忻杨义先 Information Security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and Telecommunications Shandong Provincial Key Laboratory of Computer Network Shandong Computer Science Center State Key Laboratory of Information Security (Institute of Information EngineeringChinese Academy of Sciences)

Quantum steganography that utilizes the quantum mechanical effect to achieve the purpose of information hiding is a popular topic of quantum information. Recently, E1 Allati et al. proposed a new quantum steganography using the GHZ4 state. Since all of the 8 groups of unitary transformations used in the secret message encoding rule change the GHZ4 state into 6 instead of 8 different quantum states when the global phase is not considered, we point out that a 2-bit instead of a 3-bit secret message can be encoded by one group of the given unitary transformations. To encode a 3-bit secret message by performing a group of unitary transformations on the GHZ4 state, we give another 8 groups of unitary transformations that can change the GHZ4 state into 8 different quantum states. Due to the symmetry of the GHZ4 state, all the possible 16 groups of unitary transformations change the GHZ4 state into 8 different quantum states, so the improved protocol achieves a high efficiency.

关键词： quantum steganography GHZ4 entangled state quantum cryptography quantum communication

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A forensics method of web browsing behavior based on association rule mining

A forensics method of web browsing behavior based on associa...

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International Conference on Systems and Informatics (ICSAI)

作者： Yiyun Zhang Guolong Chen College of Mathematics and Computer Science Fuzhou University Fujian Provincial Key Laboratory of Network Computing and Intelligent Information Processing Fuzhou Fujian China

ISBN: (纸本)9781479954599

With the development of network, web forensics is becoming more and more important due to the rampant cybercrime. In this paper, a forensics method of web browsing behavior based on association rule mining is presented. The method aims at providing the necessary data support to build the behavior pattern library for investigation. The records of the user's browsing history are collected to be analyzed. The obtained original data are pretreated to transactional data which are suitable for association rule mining. Frequent browsing time and frequent web browsing sequences are obtained from the transactional data by Apriori algorithm. The mining results are helpful for identification and recognition of anonymous or suspicious web browsing behavior patterns.

关键词： History Browsers Forensics Association rules Libraries Uniform resource locators

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Data Replication Placement Strategy Based On Bidding Mode for Cloud Storage Cluster

Data Replication Placement Strategy Based On Bidding Mode fo...

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2014 11th Web information System and Application Conference(第十一届全国web信息系统及其应用学术会议)

作者： Hong Zhang Bing Lin Zhanghui Liu Wenzhong Guo College of Mathematics and Computer Science Fujian Provincial Key Laboratory of Network Computing and Intelligent Information Processing Fuzhou University Fuzhou 350116 China

ISBN: (纸本)9781479957286

The data availability in large-scale cloud storage has been increasing by means of data *** provide cost-effective availability, minimize the response time of applications and make load balancing for cloud storage, a new replica placement policy with bidding thought is *** policy combines the own characteristics of replica and factors of bidding mode(e.g, bidding time, bidding standard, bidding price etc.) and starts replica bidding activity when the file data availability cannot meet the given *** placement is based on capacity and accessing probability of data *** experimental results show that our policy has a better performance in both load balance and response time comparing to the static replica policy and CDRM scheme.

关键词： Data Replica Bidding Mode Cloud Storage Load Balance

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Dynamics Nature and Link Prediction Methods in Opportunistic networks

Dynamics Nature and Link Prediction Methods in Opportunistic...

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IEEE International Conference on Computational Science and Engineering, CSE

作者： Yin Li Xuebing Zhao Hao Tang Qi Wang Sanfeng Zhang College of Software Engineering Southeast University Nanjing China Key Laboratory of Computer Network and Information Ministry of Education Southeast University Nanjing China

ISBN: (纸本)9781479979820

With the increasing popularization of low-cost smart mobile devices, which have the capability of short-range wireless communication, opportunistic networks aimed to meet different requirements start to put into practice. However, because of the mobility of nodes, links in opportunistic networks is intermittent and dynamic, which results in the problems of long delay time and low success rate of delivery. And these problems limit the further development of opportunistic networks. To solve these problems, this paper proposes a solution framework based on prediction, explores potential methods that are applicable to opportunistic networks and compares their performance and suitable application model.

关键词： Indexes Time series analysis Computational modeling Predictive models Prediction algorithms Complex networks

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Independent component analysis based on information bottleneck

Abstract and Applied Analysis

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Abstract and Applied Analysis 2015年第1期2015卷

作者： Ke, Qiao Zhang, Jiangshe Srivastava, H.M. Wei, Wei Chen, Guang-Sheng School of Mathematics and Statistics Xi'An Jiaotong University Xi'an 710049 China Department of Mathematics and Statistics University of Victoria Victoria V8W3R4 BC Canada School of Computer Science and Engineering Xi'An University of Technology Shaanxi Key Laboratory for Network Computing and Security Technology Xi'an 710048 China Department of Construction and Information Engineering Guangxi Modern Vocational Technology College Hechi Guangxi 547000 China

The paper is mainly used to provide the equivalence of two algorithms of independent component analysis (ICA) based on the information bottleneck (IB). In the viewpoint of information theory, we attempt to explain the two classical algorithms of ICA by information bottleneck. Furthermore, via the numerical experiments with the synthetic data, sonic data, and image, ICA is proved to be an edificatory way to solve BSS successfully relying on the information theory. Finally, two realistic numerical experiments are conducted via FastICA in order to illustrate the efficiency and practicality of the algorithm as well as the drawbacks in the process of the recovery images the mixing images. © 2015 Qiao Ke et al.

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Chip waveforms attribute recognition model research and design

Chip waveforms attribute recognition model research and desi...

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2014 International Conference on Manufacturing Technology and Electronics Applications, ICMTEA 2014

作者： Xiao, Da Feng, Jing Zhu, Yue Fei Peng, Fei Lan, Jing Hong Computer network department ZhengZhou Information Science University ZhengZhouHeNan China State Key Laboratory of Mathematical Engineering and Advanced Computing ZhengZhouHeNan China Urumqi General Hospital of PLA.Urumqi 7 Jianxue Street Xinjiang Uygur Zizhiqu Jinshui District ZhengZhouHeNan China

ISBN: (纸本)9783038353287

For hardware Trojan detection process is difficult to effectively extract the exact equivalent logic function of the target chip logic function is proposed based on contradictory truth table equivalent extraction scheme and key Enabling technologies. Designed to target chip waveforms attribute recognition model, through the analysis of multiple properties of the model and proof, the work is given waveform attribute recognition model parameter setting principles. © (2014) Trans Tech Publications, Switzerland.

关键词： Malware

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High-efficiency quantum steganography based on the tensor product of Bell states

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Science China(Physics,Mechanics & Astronomy) 2013年第9期56卷 1745-1754页

作者： XU ShuJiang CHEN XiuBo NIU XinXin YANG YiXian Information Security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and Telecommunications Shandong Provincial Key Laboratory of Computer Network Shandong Computer Science Center State Key Laboratory of Information Security Institute of Information EngineeringChinese Academy of Sciences

In this paper,we first propose a hidden rule among the secure message,the initial tensor product of two Bell states and the final tensor product when respectively applying local unitary transformations to the first particle of the two initial Bell states,and then present a high-efficiency quantum steganography protocol under the control of the hidden *** the proposed quantum steganography scheme,a hidden channel is established to transfer a secret message within any quantum secure direct communication(QSDC) scheme that is based on 2-level quantum states and unitary *** secret message hiding/unhiding process is linked with the QSDC process only by unitary *** accurately describe the capacity of a steganography scheme,a quantitative measure,named embedding efficiency,is introduced in this *** performance analysis shows that the proposed steganography scheme achieves a high efficiency as well as a good ***,it is shown that this scheme can resist all serious attacks including the intercept-resend attack,measurement-resend attack,auxiliary particle attack and even the Denial of Service *** improve the efficiency of the proposed scheme,the hidden rule is extended based on the tensor product of multiple Bell states.

关键词： quantum steganography embedding efficiency quantum secure direct communication tensor product Bell state

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A Novel Quantum Covert Channel Protocol Based on Any Quantum Secure Direct Communication Scheme

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Communications in Theoretical Physics 2013年第5期59卷 547-553页

By analyzing the basic properties of unitary transformations used in a quantum secure direct communication (QSDC) protocol, we show the main idea why a covert channel can be established within any QSDC channel which employs unitary transformations to encode information. On the basis of the fact that the unitary transformations used in a QSDC protocol are secret and independent, a novel quantum covert channel protocol is proposed to transfer secret messages with unconditional security. The performance, including the imperceptibility, capacity and security of the proposed protocol are analyzed in detail.

关键词： quantum information hiding quantum covert channel quantum cryptography quantum communication

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A Background Prior Based Saliency Detection for JPEG Image

A Background Prior Based Saliency Detection for JPEG Image

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International Symposium on Computational Intelligence and Design, ISCID

作者： Xiaolong Sun Zhanghui Liu Wenzhong Guo College of Mathematics and Computer Science Fuzhou University Fuzhou China Fujian Province Key Laboratory of Network Computing and Intelligent Information Process Fuzhou China

ISBN: (纸本)9781479970063

Image saliency detection, which is aiming at locating meaningful objects in image and extracting the corresponding saliency map, has been attracting considerable attention. Most of existing saliency detection algorithms are dealing with uncompressed images, while numerous images are distributed and stored in JPEG format over Internet. Thus, this paper proposes a novel image saliency detection method dealing with JPEG images, which directly extracts 3 image low-level features (intensity, texture and color) from JPEG DCT blocks and then evaluates image saliency by calculating the shortest path from each internal point to the background. We compare our method with some state-of-the-art methods on the publicly available dataset MSRA-1000. Experimental results show that our method exhibits better performance in terms of all four evaluations than some state-of-the-art methods in our experiments. The final saliency maps indicate that our method can also produce satisfied saliency maps directly in compressed domain.

关键词： Image color analysis Discrete cosine transforms Transform coding Feature extraction Image coding Detection algorithms computer vision

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Implementation and evaluation of a backtracking algorithm for finding all justifications in OWL 2 EL

Implementation and evaluation of a backtracking algorithm fo...

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7th Chinese Semantic Web Symposium and the 2nd Chinese Web ScienceConference, CSWS 2013

作者： Zhou, Zhangquan Qi, Guilin Key Laboratory of Computer Network and Information Integration of State Education Ministry School of Computer Science and Engineering Southeast University China

ISBN: (纸本)9783642540240

Finding justifications plays an important role in the development and maintenance of ontologies. It helps users or developers to understand the entailments by presenting the minimal subsets of the ontology which are responsible for the entailment (called justification). In our previous work, we have proposed a backtracking algorithm for finding justifications in description logic ΕL+, which underpins OWL 2 EL, a profile of the latest version of Web Ontology Language (OWL). However, the algorithm is not implemented. In this paper, we implement this algorithm and conduct experiments on some real world ontologies, including Snomed-CT. We compare our algorithm with a black-box algorithm for finding all justification in OWL 2 EL. The experimental results show that in most cases, the backtracking algorithm outperforms the black-box one. © Springer-Verlag Berlin Heidelberg 2013.

关键词： Ontology

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