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Trust Model Based on Structured Protection for High Level security System

China Communications 2012年第11期9卷 70-77页

作者： Liao Jianhua Zhao Yong Zhan Jing School of Electronics Engineering and Computer Science Peking University Beijing 100871 P. R. China School of Computer Science and Technology Beijing University of Technology Beijing 100124 P. R. China Key Laboratory of Network Security and Cryptology Fujian Normal University Fuzhou 350007 P. R. China State Key Laboratory of Information Security Institute of So ware Chinese Academy of Sciences Beijing 100049 P. R. China

In order to ensure the security of information systems, it's essential to make sure that system behaviors are trusted. By analyzing threats that exist in executing procedures, a trust model based on structured protection is proposed. We consider that functional components, system actions and message flows between components are three key factors of information systems. Structured protection requirements on components, connections and action parameters are also provided. Four trusted properties of the model are deducted through formal analysis, and trusted system behavior is defined based on these properties. Furthermore, decision theorem of trusted system behavior is proved. The developed prototype system indicates the model is practical. It is a general theory model built on logic deduction and independent on specific environment and the behaviors of the system designed and implemented following the model are trusted.

关键词： trusted computing security assurance structured protection

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Generalized geometry-based optimal power control in wireless networks

Generalized geometry-based optimal power control in wireless...

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2012 9th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and networks, SECON 2012

作者： Wang, Wei Shin, Kang G. Zhang, Zhaoyang Wang, Wenbo Peng, Tao Department of Information Science and Electronic Engineering Zhejiang Provincial Key Laboratory of Information Network Technology Zhejiang University Hangzhou 310027 China Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI 48109-2121 United States Wireless Signal Processing and Networking Lab Beijing University of Posts and Telecommunications Beijing 100876 China

ISBN: (纸本)9781467319058

Geometry-based optimal power control was proposed in [14] to transform the power-control problem to a new geometrical problem on the position relationship between a line and some points. This scheme provides a novel visual perspective and lowers the complexity of optimization. We generalize this scheme to a larger class of power-control optimization problems so as to maximize the network utility with multiple average and peak power constraints in wireless networks. To facilitate the handling of the geometrical model, we define a subset of geometrical models with specified characteristics, called a regular geometrical model, and derive the type of power-control problems eligible for the regular geometrical model. For such a type of problems, two strategies are proposed for the construction of the regular geometrical model. Utilizing geometrical properties, we propose a novel geometry-based optimization scheme for the general power-control problem. Its computational complexity is significantly lower than the conventional algorithms. We also provide a further discussion on irregular geometrical model cases. Finally, we provide two examples of deploying the proposed geometry-based power-control scheme. © 2012 IEEE.

关键词： Geometry

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Filter-Based information Selection Mechanism in Publish/Subscribe Middleware

Filter-Based Information Selection Mechanism in Publish/Subs...

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2012 3rd International Conference on information Technology for Manufacturing Systems(ITMS 2012)

作者： Jigang Xiao Yunqing Chen Zhuowei Shen Systems Engineering Research Institute China State Shipbuilding Corporation Key Lab of Computer Network and Information Integration MOE School of Computer Science and Engineering Southeast University

Publish/Subscribe middleware is getting more and more attentions for its feature of loose *** some scenarios,Subscribersof a topic need not all the information belonging to that topic, but only those of interest. To fulfill this requirement,some kind of information selection mechanism is needed. In this paper, a filter-based information selection mechanism is proposed, which is compliant with OMG DDS specification. Then it is implemented in a publish/subscribe middleware prototype *** the mechanism, a publish/subscribe middleware can use the compiler generated by Flex&Bison to compile the filtering rules of the users,which are conform to SQL-like syntax,and generate the filtering syntax *** the subscriber side, when receiving a sample, the middleware substitute the values of the sample into the corresponding positions in the filtering syntax tree. By traversing the tree, the middleware makes the filtering decision. Experiment results reveal that the proposed mechanism is effective.

关键词： information Filtering Publish/Subscribe middleware Data Distribution Service Filter

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Track-to-Track Association in the Presence of Sensor Bias and the Relative Bias Estimation

Track-to-Track Association in the Presence of Sensor Bias an...

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International Conference on information Fusion

作者： Yulan Han Hongyan Zhu Chongzhao Han Ministry of Education Key Lab For Intelligent Networks and Network Security State Key Laboratory for Manufacturing Systems Engineering Institute of Integrated Automation School of Electronics and Information Engineering Xi'an Jiaotong University Xi'an

ISBN: (纸本)9780982443859

Track to track association problem is crucial for multisensor data fusion, and become complicated in the presence of sensor bias, random errors, false tracks and missed tracks. In this paper, we apply the optimal Bayes joint decision and estimation(JDE) which was proposed in [12] to the track-to-track association in the presence of sensor bias and develop a simplified JDE. The optimal Bayes JDE accounts to the possible association error when estimates the relative sensor bias and takes the estimate error into consideration when chooses the track-to-track association by the association cost having the estimation error. Hence it can enhance the accuracy of track-to-track association and reduce the relative bias estimate error. For computational simplicity, in this paper we proposed another JDE algorithm which can reduce the computation and only is slightly worse than the optimal Bayes JDE. The simulations compare the performance of the JDE association, the simplifed JDE developed in this paper, the method proposed in [8], and verify the feasibility and effectiveness of methods.

关键词： target tracking track-to-track association sensor bias estimation and decision

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Improvement on masked S-box hardware implementation

Improvement on masked S-box hardware implementation

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International Conference on Innovations in information Technology

作者： Juanli Zeng Yi Wang Cheng Xu Renfa Li College of Information Science and Engineering Hunan University Changsha Hunan P. R. China Department of Electrical & Computer Engineering National University of Singapore Singapore Hunan Province Key Laboratory of Network and Information Security

Masking in gate level could efficiently protect AES S-box out of power analysis attack. But there still exists a kind of attack, called glitch attack, to achieve the sensitive information from gate cell leakage. Some works had been done to resist against glitch attack, which carefully masked AND gate or used Wave Dynamic Differential Logic (WDDL) cell. In this paper, we propose an improved masked AND gate, in which the relationship between input masked values and masks is nonlinear. Usually, when converting S-box operations from GF(2 8 ) to GF(((2 2 ) 2 ) 2 ), all the necessary computations become XOR and AND operations. Therefore, to fully mask AES S-box is to substitute the unmasked XOR and AND operations with the proposed masked AND gate and protected XOR gate. Although the proposed masked AND gate take up one extra XOR gate than Trichina's design and Baek's design, it can resist against glitch attack without using specific gate cell, such as WDDL.

关键词： Logic gates Hardware CMOS integrated circuits Encryption Field programmable gate arrays computer architecture

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Construction of Odd-Variable Boolean Function with Maximum Algebraic Immunity Using Univariate Polynomial Representation

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China Communications 2012年第10期9卷 33-39页

作者： Zhao Wentao Fu Shaojing Li Chao Qu Longjiang College of Computer National University of Defense Technology Changsha 410073 P. R. China Department of Mathematics and System Science National University of Defense Technology Changsha 410073 P. R. China Key Laboratory of Network Security and Cryptology Fujian Normal University Fuzhou 350007 P. R. China State key Laboratory of Information Security Chinese Academy of Science Beijing 100049 P. R. China

To protect against algebraic attacks, a high algebraic immunity is now an important criterion for Boolean functions used in stream ciphers. In this paper, a new method based on a univariate polynomial representation of Boolean functions is proposed. The proposed method is used to constmct Boolean functions with an odd number of variables and with maximum algebraic immunity. We also discuss the nonlinearity of the constructed functions. Moreover, a lower bound is deter- mined for the number of Boolean functions with rmximum algebraic immunity.

关键词： cryptography boolean function alge- braic attack algebraic immunity

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Identity-based proxy cryptosystems with revocability and hierarchical confidentialities

Identity-based proxy cryptosystems with revocability and hie...

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作者： Wang, Lihua Wang, Licheng Mambo, Masahiro Okamoto, Eiji Network Security Research Institute Koganei-shi 184-8795 Japan State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China Faculty of Electrical and Computer Engineering Institute of Science and Engineering Kanazawa University Kanazawa-shi 920-1192 Japan School of Systems and Information Engineering University of Tsukuba Tsukuba-shi 305-8573 Japan

Proxy cryptosystems are classified into proxy decryption systems and proxy re-encryption systems on the basis of a proxy's role. In this paper, we propose an ID-based proxy cryptosystem with revocability and hierarchical confidentialities. In our scheme, on receiving a ciphertext, the proxy has the rights to perform the following three tasks according to the message confidentiality levels of the sender's intention: (1) to decrypt the ciphertext on behalf of the original decryptor;(2) to re-encrypt the ciphertext such that another user who is designated by the original decryptor can learn the message;(3) to do nothing except for forwarding the ciphertext to the original decryptor. Our scheme supports revocability in the sense that it allows proxy's decryption and re-encryption rights to be revoked even during the valid period of the proxy key without changing the original decryptor's public information. We prove that our proposal is indistinguishable against chosen identity and plaintext attacks in the standard model. We also show how to convert it into a system against chosen identity and ciphertext attacks by using the Fujisaki-Okamoto transformation. © 2012 The Institute of Electronics, information and Communication Engineers.

关键词： Cryptography

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A load-balanced data aggregation scheduling for duty-cycled wireless sensor networks

A load-balanced data aggregation scheduling for duty-cycled ...

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2012 4th IEEE International Conference on Cloud Computing Technology and Science, CloudCom 2012

作者： Chen, Zhengyu Yang, Geng Chen, Lei Xu, Jian Wang, Haiyong Key Lab of Broadband Wireless Communication and Sensor Network Technology of Ministry of Education Nanjing University of Posts AndTelecommunications Nanjing 210046 China College of Computer Science and Technology Nanjing University of Posts and Telecommunications Nanjing 210046 China School of Information Technology Jinling Institute of Technology Nanjing 211169 China

ISBN: (纸本)9781467345095

To bridge the gap between limited energy supplies of the sensor nodes and the system lifetime, duty-cycle Wireless Sensor networks (WSNs) with data aggregation are studied in this paper. We proposed a load-balanced and latency-efficient data aggregation scheduling for duty-cycled WSNs. A shortest path tree (SPT) is used as the routing structure for data aggregation scheduling. In SPT, parent-children assignments are well-designed to assign nodes from level h+1 to the parents at level h such that every parent has a balanced load, while reducing the sleep latency which is a period of time for a sender to wait for its parent to be active. Finally, through the simulation and comparisons, we prove the effectiveness of our approach. © 2012 IEEE.

关键词： Scheduling

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Tightly secure non-interactive multisignatures in the plain public key model

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Informatica (Netherlands) 2012年第3期23卷 443-460页

作者： Qian, Haifeng Li, Xiangxue Huang, Xinli Department of Computer Science and Technology East China Normal University Shanghai 200241 China Hangzhou Key Lab of E-business and Information Security Hangzhou Normal University Hangzhou 310036 China

Multisignature scheme allows a group of signers to generate a compact signature on a common document that certifies they endorsed the message. However, the existing state of the art multisignatures often suffers from the following problems: impractical key setup assumptions, loose security reductions and inefficient signature verification. In this paper, we propose a non-interactive multisignature scheme with tight security reduction in the random oracle model. Our proposed multisignatures address the above three problems by achieving: provable security in the plain public key model;tight security reduction under the standard Computational Diffie-Hellman (CDH) assumption and (1) computational time for signature verification through pre-computation. Hence, our non-interactive multisignatures are of great use in routing authentication of networks. © 2012 Vilnius University.

关键词： Authentication

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Privacy-Preserving Multi-set Operations

Privacy-Preserving Multi-set Operations

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2012 IEEE 14th International Conference on Communication Technology

作者： Meishan Huang Bogang Lin College of Mathematics and Computer Science Fuzhou University Key Lab of Information Security of Network System Fuzhou University

ISBN: (纸本)9781467321006

We consider several multiset operations in secure two- party setting where Alice and Bob each have a multiset and they want to perform some private computations over the two multisets without revealing and private information which means no one of them would learn more information than what can be deduced from the *** design some methods to compute union,intersection and element reduction operations effectively and securely and apply these techniques to solve the multiset operations problems in semi-honest setting and consider their extension to the malicious setting.

关键词： component multiset operation privacy-preserving secure computation characteristic bit-string

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