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International Conference on Semantics, Knowledge and Grid (SKG)

作者： Kun Wang Ruidan Su Zengxin Li Zhen Cai Lihua Zhou Key Laboratory of Computer Network and Information Security of the Ministry of Education Xidian University Xi'an China National Info Security Engineering and Technology Research Center Beijing China

Complicated information system (CIS) contains many inhomogeneous applications which require security, interoperability, extensibility. The paper presents a secure CIS architecture model to conduct the construction or reconstruction of CIS. Using layered method, it divides CIS into modules and reduces system complexity. Web service technology is widely adopted in layers to fulfill interoperability and extensibility. It uses encryption support layer, security protection and reliability support layer to guarantee system security and stability in different aspects. It uses system management layer to make CIS administrable. It suits highly security-critical environment such as government and bank. Been properly simplified, it can be applied to relative simple information system too.

关键词： information systems information security Computational Intelligence Society Communication system security National security Electronic government Operating systems Protocols Communication standards computer security

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A Disaster Recovery System Model in an E-government System

A Disaster Recovery System Model in an E-government System

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IEEE International Conference on Parallel and Distributed Computing, Applications and Technologies (PDCAT)

作者： Kun Wang Lihua Zhou Zhen Cai Zengxin Li Key Laboratory of Computer Network and Information Security of the Ministry of Education Xidian University Xi'an China National Info Security Engineering and Technology Research Center Beijing China

We present a Robust Disaster Recovery System Model (RDRSM) for highly security-critical systems to realize continuous service. Through strengthening safe communication ability, RDRSM guarantees secure and reliable command on disaster recovery. It uses selfsupervision function to monitor the integrality and security of system itself. Through GIS, this model makes disaster recovery system easier to use, manage and maintain. RDRSM possesses features of security, robustness and controllability and can be applied to environments such as e-government and bank. This model successfully conducted the construction of an important e-government disaster recovery system, which verified its feasibility and the significance of its components, such as disaster recovery planning, system supervision and robust communication support.

关键词： Electronic government Robustness Communication system security Stability Disaster management computer networks information security Monitoring Geographic information Systems Protection

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Development of an Internet Home Automation System using Java and Dynamic DNS Service

Development of an Internet Home Automation System using Java...

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IEEE International Conference on Parallel and Distributed Computing, Applications and Technologies (PDCAT)

作者： Ximin Zhang Junding Sun Lihua Zhou Minstry of Education Key Lab of Computer and Information Security Xidian Univ. Multimedia Technology Institute Xidian University Xi'an China

This paper presents the design and implementation of an Internet home automation system. The design is based on an embedded controller which is connected to a PC-based home Web server via RS232 serial port. The home appliances are connected to the input/output ports and the sensors are connected to the analog/digital converter channels of the embedded controller. The software of the system is based on the combination of Keil C, Java Server Pages, and JavaBeans, and dynamic DNS service (DDNS) client. Password protection is used to block the unauthorized from accessing to the server. The system is scalable and allows additional appliances to be added to it with no major changes to its core, the home appliances can be monitored and controlled locally, or remotely through a web browser from anywhere in the world provided that an Internet access is available.

关键词： Web and internet services Home automation Java Home appliances Automatic control Web server Analog-digital conversion Software systems Protection Remote monitoring

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Authenticated public-key encryption based on elliptic curve

Authenticated public-key encryption based on elliptic curve

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International Conference on Embedded Software and Systems

作者： Yiliang Han Xiaoyuan Yang Yupu Hu Key Laboratory of Network and Information Security A.P.FDepartment of Electronic Technology Engineering College of A. P. F Xi'an China College of Computer Science Xidian University Xi'an China

An efficient scheme so called authenticated public key encryption that performs signature and encryption simultaneously is designed. The scheme is the first scheme that based on the standardized signature algorithm ECDSA and achieves both privacy and authenticity in the method of ECDLP which is the most practical cryptographic primitive in the future. The scheme saves 78%-82% computation costs in all. It also saves 14% storage costs for current security parameters and 9% storage costs for high level security in average. The saving is significant potentially, especially in power restricted applications such as embedded systems and mobile computing. Arguments show that the scheme is secure at present. Compared with RFC1421 and existed results, the scheme for multiple users also discussed.

关键词： Public key Elliptic curves Secure storage Costs Power system security Privacy Public key cryptography Elliptic curve cryptography Computational efficiency Embedded system

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Effective strategy of worm dynamic defence and containment

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Dalian Ligong Daxue Xuebao/Journal of Dalian University of Technology 2005年第SUPPL.期45卷 S176-S179页

作者： Zhao, Yuan-Dong Yang, Xiong Yun, Xiao-Chun Information and Communication Dept. Nanjing University of Information Science and Technology Nanjing 210044 China National Computer Emergency Resolution Technology/Coordination Center Beijing 100029 China National Key Lab. on Computer Context Information Security Harbin Institute of Technology Harbin 150001 China

Based on the comparison and analysis of several worms containment strategy, a new and effective strategy of dynamic defence and worm containment (DDWC) is proposed. The effectiveness for containing top-speed scan worm and slow-speed scan worm is demonstrated. The impact of normal network traffic on the containment strategy is also analyzed so that it brings down false positives largely. The simulation results have verified that the improved two-rotation quarantine algorithm can contain worms effectively and create lower false alarms.

关键词： computer worms

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An approach to the formal verification of the three-principal cryptographic protocols

An approach to the formal verification of the three-principa...

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作者： Zhang, Yuqing Liu, Xiuying State Key Laboratory of Information Security GSCAS Beijing 100039 China National Computer Network Intrusion Protection Center GSCAS Beijing 100039 China

Based on the model checking theory, we derive the Running-Mode Analysis of three-principal cryptographic protocols from the Running-Mode Analysis of two-principal cryptographic protocols. To test this method, we analyze the Davis Swick protocol and successfully prove the security of this protocol. Therefore, we can draw a conclusion that Running-Mode Analysis of three-principal cryptographic protocol is available.

关键词： Cryptography

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Enhancing the content of the intrusion alerts using logic correlation

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Advanced Workshop on Content Computing, AWCC 2004

作者： Wang, Liang-Min Ma, Jian-Feng Zhan, Yong-Zhao The Key Laboratory of Computer Network and Information Security Xidian University Ministry of Education Xian710071 China The Computer School of Jiangsu Univ Zhenjiang212013 China

ISBN: (纸本)3540238980

To solve the problem of the alert flooding and information semantics in the existing IDS, the approach using the logic correction to enhance the content of the alerts is presented. The Chronicle based on time intervals is presented to describe the temporal time constrains among intrusion alerts, and the Chronicle patterns are designed to integrate the alerts of the sequence generated by an attacker into a high-level alert. Then the preparing relation between the high-level alerts is defined and the one-order logic algorithm is applied to correlate these high-level alerts with the preparing relationship. The attack scenario is constructed by drawing the attack graph. In the end an example is given to show the performance of this algorithm in decreasing the number and improving the information semantics of the intrusion alerts. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Semantics

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Signcryption based on elliptic curve and its multi-party schemes 04

Signcryption based on elliptic curve and its multi-party sch...

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3rd International Conference on information security, InfoSecu '04

作者： Han, Yiliang Yang, Xiaoyuan Hu, Yupu Department of Electronic Technology Engineering College of APF Xi'an China Key Lab. on Network and Information Security of Educational Ministry Xidian University Xi'an China

ISBN: (纸本)1581139551

A new signcryption based on elliptic curve cryptosystems that combines ECDSA and PSCE-1 is presented. The signcryption scheme is a publicly verifiable scheme which can be verified by the third party after the specific recipient removes his key information. Analysis shows that the proposed scheme is secure against the adaptive chosen ciphertext attack. The signcryption saves the communication cost at least 1.25 times and enhances computation cost 1.19 times over ECDSA-then-PSCE-1. Compared with other signcryption schemes, such as Y. Zheng's ECSCS, the new signcryption uses a uniform elliptic curve cryptosystem platform instead of four kinds of cryptosystem components: hash function, keyed hash function, symmetric cipher and elliptic curve. While keeping high security and efficiency, the scheme can be implemented in software and hardware at low price because of above advantages. Based on the presented signcryption, a broadcast scheme for multiple recipients and a threshold scheme with key Distributed Generation for multiple senders are also proposed. Copyright 2004 ACM.

关键词： Hash functions

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A risk assessment approach for network information system

A risk assessment approach for network information system

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Yong-Zheng Zhang Bin-Xing Fang Xiao-Chun Yun National Computer Information Content Security Key Laboratory Harbin Institute of Technology Harbin Heilongjiang China Research Center of Computer Network and Information Security Technology Harbin Institute of Technology Harbin Heilongjiang China

ISBN: (纸本)0780384032

Currently, risk assessment has been an effective technology of protecting network information system. In order to achieve more accurate result, a new assessment approach is presented in this paper. Our approach introduces the idea of network node correlation (NNC), and based on NNC, we give the conception and characteristic of risk propagation. Also, we design a quantitative taxonomy of network node, and describe the assessment process. Compared with other works, our approach more truly reflects the existence of the correlative risk.

关键词： Risk management information systems computer networks information security Taxonomy computer security National security laboratories Electronic mail Protection

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Aggregating local behaviors based upon a discrete lagrange multiplier method

Aggregating local behaviors based upon a discrete lagrange m...

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Proceedings - IEEE/WIC/ACM International Conference on Intelligent Agent Technology. IAT 2004

作者： Tang, Yi Liu, Timing Jin, Xiaolong Department of Information Science Guangzhou University Guangzhou 510405 China State Key Lab of Info. Security Institute of Software CAS Beijing 100039 China Department of Computer Science Hong Kong Baptist University Kowloon Tong Hong Kong

ISBN: (纸本)0769521010

When solving a distributed problem based on a multiagent system, the local behaviors of agents will be aggregated to the global behaviors of the multi-agent system towards a solution state. This paper presents a distributed discrete Lagrange multiplier (DDLM) method for solving distributed constraint satisfaction problems (distributed CSPs). In this method, the local behaviors of agents are aggregated as a descent direction of an objective function corresponding to the problem at hand. Thus, a trend to a solution state will be formed. Furthermore, we provide three techniques to speed up the aggregation of agents' local behaviors. Through experiments on benchmark graph coloring problems, we validate the effectiveness of the presented DDLM method as well as the three techniques in solving distributed CSPs. © 2004 IEEE.

关键词： Lagrange multipliers

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