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Symposia and Workshops on Ubiquitous, Autonomic and Trusted Computing, UIC-ATC

作者： Jiawei Zhu Zhengang Wu Zhi Guan Zhong Chen Institute of Software Peking University Beijing China MoE Key Lab of Network and Software Security Assurance (PKU) Beijing China China Academy of Information and Communications Technology Beijing China

ISBN: (纸本)9781467372121

To mitigate security problem brought by Android malware, various work has been proposed such as behavior based malware detection and data mining based malware detection. In this paper, we put forward a novel Android malware detection model using data mining techniques. We design an algorithm with two steps. The first step is modeling Android application code into graph structure, called API control flow graph by us. Next step is calculating API sequences fulfilling minimum intra-family support in each malware family because malware in malware family usually share similar behavior pattern. Finally, supervised learning method is took advantage in building our malware detecting model with API sequences as input features. We evaluate this model with 1200 applications, half of them are malicious and half are benign, and find it effective in identifying Android malware and even unknown malware.

关键词： Malware Androids Humanoid robots Feature extraction Data mining Support vector machines Training

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Energy-balanced clustering routing protocol based on task separation in wireless sensor networks

Energy-balanced clustering routing protocol based on task se...

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International Conference on BioMedical Engineering and Informatics (BMEI)

作者： Wei Sun Xiaoying Song Fasheng Wang Software Center Northeastern University Shenyang China Liaoning Key Lab of Network Security and Computing Technology Dalian Neusoft University Information Dalian China

Clustering protocol for data gathering is one of the effective ways to solve the energy hole problem in wireless sensor networks. However, most of the existing clustering protocols focus on the network model with uniform node distribution. They cannot effectively apply to the real network where the sensor nodes are randomly non-uniformly deployed. In this paper, we propose an energy-balanced clustering routing protocol (EBCRP) based on task separation. In this scheme, the network is firstly divided into clusters by using global information. And each of them has the same number of sensor nodes in order to balance the energy consumption of intra-cluster. In succession, task separation, the tasks of traditional single cluster head are separated and achieved by two cluster heads respectively, is proposed to reduce the traffic burden for single cluster head. Then, we explore an energy-efficient and reliable inter-cluster routing algorithm, which considers comprehensively three factors: residual energy, distance and available buffer space of nodes. Simulation results and performance evaluation of EBCRP show significant improvement in network lifetime and energy balance.

关键词： Energy consumption Protocols Head Clustering algorithms Routing Algorithm design and analysis Wireless sensor networks

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Enhancing problem frames with trust and reputation for analyzing smart grid security requirements 1

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2nd International Workshop on Smart Grid security, SmartGridSec 2014

作者： Moyano, Francisco Fernández-Gago, Carmen Beckers, Kristian Heisel, Maritta Network Information and Computer Security Lab University of Malaga Malaga29071 Spain Paluno - The Ruhr Institute for Software Technology University of Duisburg-Essen Essen Germany

ISBN: (数字)9783319103297

ISBN: (纸本)9783319103280

Smart grids are expected to scale over millions of users and provide numerous services over geographically distributed entities. Moreover, smart grids are expected to contain controllable local systems (CLS) such as fridges or heaters that can be controlled using the network communication technology of the grid. security solutions that prevent harm to the grid and to its stakeholders from CLS are essential. Moreover, traditional security approaches such as static access control systems cause a lot of administrative workload and are difficult to maintain in fast growing and changing systems. In contrast, trust management is a soft security mechanism that can reduce this workload significantly. Even though there is not any accepted definition of trust, it is agreed that it can improve decision-making processes under risk and uncertainty, improving in turn systems’ security. We use the problem frames notation to discuss requirements for a trust-based security solution concerning CLS. © Springer International Publishing Switzerland 2014.

关键词： Smart power grids

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Addressing the energy hole problem based on heterogeneous clustering size for wireless sensor networks

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Journal of Computational Information Systems 2014年第9期10卷 3973-3980页

作者： Song, Xiaoying Wen, Tao Guo, Quan Ma, Fengming Zhang, Dongqing Software Center Northeastern University Shenyang 110819 China Liaoning Key Lab. of Network Security and Computing Technology Dalian Neusoft Information Institute Dalian 116023 China School of Management Science Qufu Normal University Rizhao Shandong 276800 China

Clustering is one of the effective ways to solve energy hole problem for Wireless Sensor network. So far, the approaches of heterogeneous cluster size mainly have concentrated on the design of unequal cluster protocol rather than the optimal cluster radius theoretically. Furthermore, the existing protocols of data gathering fall short in the extra energy dissipation of the rotating cluster head frequently. To overcome these limitations, in this paper, we first present the theoretical analysis to obtain the optimal number of cluster when the energy dissipation is balancing in the whole network. Then, the optimal cluster radius of different rings is obtained by theoretical analysis as well. In succession, a simple and effective strategy is proposed to further prolong the network lifetime on basis of the optimal cluster radius obtained theoretically. Finally, the simulation results demonstrate the performance advantages of our approach. © 2014 Binary Information Press.

关键词： Wireless sensor networks

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A Provably secure Certificate based ring signature without pairing

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International Journal of network security 2014年第4期16卷 278-285页

作者： Qin, Zhiguang Xiong, Hu Li, Fagen School of Computer Science and Engineering University of Electronic Science and Technology of China No. 4 North Jianshe Road Chenghua District chengdu Sichuan 610054 China Key Lab of Network Security and Cryptology Fujian Normal University No. 8 Shangsan Road Cangshan District Fuzhou Fujian 350007 China State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences No. 19 Yuquan Road Shijingshan District Beijing 100190 China

In Eurocrypt 2003, Gentry introduced the notion of certificate-based encryption. The merit of certificate-based encryption lies in implicit certificate and no private key escrow. This feature is desirable especially for the efficiency and the real spontaneity of ring signature, which involve a large number of public keys in each execution. In this paper, we propose an efficient certificate-based ring signature scheme which does not require any pairing computation. Furthermore, this scheme is proven secure under the Discrete Logarithm assumption in the random oracle model. To the best of authors' knowledge, this is the first construction of certificate-based ring signature scheme in the literature that has such kind of feature.

关键词： Authentication

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security flaw of an ECC-based signcryption scheme with anonymity

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International Journal of network security 2013年第4期15卷 317-320页

作者： Xiong, Hu Hu, Jianbin Chen, Zhong School of Computer Science and Engineering University of Electronic Science and Technology of China No. 4 North Jianshe Road Chenghua District Chengdu Sichuan 610054 China Key Lab of Network Security and Cryptology Fujian Normal University No. 8 Shangsan Road Cangshan District Fuzhou Fujian 350007 China Institute of Software School of Electronics Engineering and Computer Science Peking University No. 5 Yiheyuan Road Haidian District Beijing 100085 China

Signcryption is a cryptographic primitive that performs digital signature and public key encryption simultaneously, at lower computational costs and communication overhead than signing and encrypting separately. Recently, Chung et al. proposed an anonymous ECC-based signcryption scheme. We show that their scheme is not secure even against a chosen-plaintext attack.

关键词： Public key cryptography

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On the resistance of Boolean functions against fast algebraic attacks

On the resistance of Boolean functions against fast algebrai...

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14th International Conference on Information security and Cryptology, ICISC 2011

作者： Du, Yusong Zhang, Fangguo Liu, Meicheng School of Information Science and Technology Sun Yat-sen University Guangzhou 510006 China Key Lab. of Network Security and Cryptology Fujian Normal University Fuzhou 350007 China State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences Beijing 100190 China

ISBN: (纸本)9783642319112

Boolean functions with large algebraic immunity resist algebraic attacks to a certain degree, but they may not resist fast algebraic attacks (FAA's). It is necessary to study the resistance of Boolean functions against FAA's. In this paper, we localize the optimal resistance of Boolean functions against FAA's and introduce the concept of e-fast algebraic immunity (e-FAI) for n-variable Boolean functions against FAA's, where e is a positive integer and . We give the sufficient and necessary condition of e-FAI. With e-FAI the problem of deciding the resistance of an n-variable Boolean function against FAA's can be converted into the problem of observing the properties of one given matrix. An algorithm for deciding e-FAI and the optimal resistance against FAA's is also described. © 2012 Springer-Verlag.

关键词： Boolean functions

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Fuzzy identity-based threshold signature scheme based on bilinear maps

Fuzzy identity-based threshold signature scheme based on bil...

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2012 5th International Conference on Biomedical Engineering and Informatics, BMEI 2012

作者： Wang, Chang-Ji Kim, Jung-Tae School of Information Science and Technology Sun Yat-sen University Guangzhou 510275 China Research Center of Software Technology for Information Service South China Normal University Guangzhou 501631 China Department of Electronic Engineering Network and Information Security Lab Mokwon University Taejon 302729 Korea Republic of

ISBN: (纸本)9781467311816

Threshold signature is a useful tool for sharing the power to sign, which has been extensively studied in the certificate-based public key setting and identity-based setting. Inspired by the work of Sahai and Waters's fuzzy identity-based encryption, we introduce the concept of fuzzy identity-based threshold signature. In this notion, the trusted dealer's identity-based private key is shared among n participating parties who are identified by their attribute sets, any subset of t participating parties out of n can generate a signature on behalf the dealer, but fewer than t participating parties can not create a valid signature on behalf of the dealer. The definition and security model of fuzzy identity-based threshold signature scheme are formalized, and a provably secure fuzzy identity-based threshold signature based on the bilinear maps is presented in this paper. © 2012 IEEE.

关键词： Cryptography

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A Trust Model Based on Cloud Model and Bayesian networks

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Procedia Environmental Sciences 2011年 11卷 452-459页

作者： Bo Jin Yong Wang Zhenyan Liu Jingfeng Xue Key Lab of Information Network Security of Ministry of Public Security(The Third Research Institute of Ministry of Public Security) Shanghai China School of Software Beijing Institute of Technology Beijing China

the Internet has been becoming the most important infrastructure for distributed applications which are composed of online services. In such open and dynamic environment, service selection becomes a challenge. The approaches based on subjective trust models are more adaptive and efficient than traditional binary logic based approaches. Most well known trust models use probability or fuzzy set theory to hold randomness or fuzziness respectively. Only cloud model based models consider both aspects of uncertainty. Although cloud model is ideal for representing trust degrees, it is not efficient for context aware trust evaluation and dynamic updates. By contrast, Bayesian network as an uncertain reasoning tool is more efficient for dynamic trust evaluation. An uncertain trust model that combines cloud model and Bayesian network is proposed in this paper.

关键词： trust model cloud model Bayesian network context aware unceratinty

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A Trust Model Based on Cloud Model and Bayesian networks

A Trust Model Based on Cloud Model and Bayesian Networks

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2011 2ND International Conference on Innovative Computing and Communication and 2011 Asia-Pacific Conference on Information technology and Ocean Engineering(CICC-ITOE 2011)

关键词： trust model cloud model Bayesian network context aware unceratinty

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