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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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Study of Secure Complicated Information System Architecture Model

Study of Secure Complicated Information System Architecture ...

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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 new approach for early detection of Internet worms based on connection degree

A new approach for early detection of Internet worms based o...

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Chen Bo Bin-Xing Fang Xiao-Chun Yun National Computer Information Content Security Key Laboratory Harbin Institute of Technology Harbin China National Computer Network and Information System Security Administration Center Beijing China

In recent years, Internet-scale worm incidents occurred many times. People wonder at the speediness of the worm spread and the severe damage to the Internet. So people began to find methods to detect worms as quickly as possible. The paper first describes a worm behavior and propagation model. And then based on it, a new approach for early detection of Internet worms is proposed. This approach determines whether a worm incident has occurred by the change of the computers' connection degree. The approach is proved to be effective on early detection of unknown worms by experiments.

关键词： Internet Computer worms Computer networks Computer security Information security National security Economics Web server Intrusion detection Computer hacking

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Efficient secret sharing scheme realizing graph-based adversary structures

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Jisuanji Yanjiu yu Fazhan/Computer Research and Development 2005年第5期42卷 877-882页

作者： Guo, Yuanbo Ma, Jianfeng Wang, Yadi Key Laboratory of Computer Networks and Information Security Xidian University Xi'an 710071 China School of Electronic Technology Information Engineering University of PLA Zhengzhou 450004 China School of Computing and Automatization Tianjin Polytechnic University Tianjin 300160 China

Most of the existing secret sharing schemes are constructed to realize general access structure, which is defined in term of authorized groups of participants, and is unable to be applied directly to the design of an intrusion tolerant system. Instead, the generalized adversary structure, which specifies the corruptible subsets of participants, can be determined directly by exploiting the system setting and the attributes of all participants. An efficient secret sharing scheme realizing graph-based adversary structures is proposed. The scheme requires less computational costs and storage overhead than the existing ones. Furthermore, it is proved that the scheme satisfy both the required properties of the secret sharing scheme, i.e., the reconstruction property and the perfect property.

关键词： Adversary structure Graph-based Secret sharing

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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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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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The precaution of the network virus and the quantitative analysis of the epidemic situation

The precaution of the network virus and the quantitative ana...

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Bai-Ling Wang Bin-Xing Fang Xiao-Chun Yun National Computer Information Content Security Key Laboratory Harbin Institute of Technology Harbin Heilongjiang China National Computer Network and Information System Security Administration Center Beijing China

ISBN: (纸本)0780378652

Comparing with the traditional host virus, the network virus has more attack ability and is more infectious in open network environment. So it is necessary to set a national virus precaution system to detect and control the network virus epidemic situation. In this paper, a distributed broadband network virus precaution model is introduced. It analyzes the data in the network and discovers the coming virus epidemic situation in time. The quantitative analysis of broadband network virus epidemic situation is given, too. According to the result, we can collect the scale, the speed and the direction of the epidemic situation. Consequently, we can establish effect control policy to reduce harm.

关键词： Internet Computer networks Control systems Broadband communication Computer security Information security National security Distributed computing Information analysis Information systems

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An architecture for intrusion detection using honey pot

An architecture for intrusion detection using honey pot

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Zhi-Hong Tian Bin-Xing Fang Xiao-Chun Yun National Computer Information Content Security Key Laboratory Harbin Institute of Technology Harbin Heilongjiang China National Computer Network and Information System Security Administration Center Beijing China

ISBN: (纸本)0780378652

The most common shortcomings in the existing intrusion detection systems (IDSs) are information overload, unknown attacks, false positives and false negatives. We present the design of AAIDHP (an architecture for intrusion detection using honey pot). This approach solves the problems previously mentioned. As a component, the honey pot cooperates with IDS, which increases flexibility, configurability and security of IDS. We also present the definition of the honey pot, the description of this approach and a discussion of design and implementation issues.

关键词： Intrusion detection Computer security Information security Distributed computing Production Telecommunication traffic Computer architecture Computer networks Protection Laboratories

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Dynamic right-sizing in FTP (drsFTP): Enhancing Grid performance in user-space

Dynamic right-sizing in FTP (drsFTP): Enhancing Grid perform...

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International Symposium on High Performance Distributed computing

作者： M.K. Gardner Wu-chun Feng M. Fisk Research & Development in Advanced Network Technology (RADIANT) Computer & Computational Sciences Division Los Alamos National Laboratory Los Alamos NM USA Network Security Team Network Engineering Group Computing Communications & Networking Division Los Alamos National Laboratory Los Alamos NM USA

With the advent of computational grids, networking performance over the wide-area network (WAN) has become a critical component in the grid infrastructure. Unfortunately, many high-performance grid applications only use a small fraction of the available bandwidth because operating systems and their associated protocol stacks are still tuned for yesterdays WAN speeds. As a result, network gurus undertake the tedious process of manually, tuning system buffers to allow TCP flow control to scale to today's WAN grid environments. Although recent research has shown how to set the size of these system buffers automatically at connection set-up, the buffer sizes are only appropriate at the beginning of the connection's lifetime. To address these problems, we describe an automated and scalable technique called dynamic right-sizing. We implement this technique in user space (in particular for bulk-data transfer) so that end users do not have to modify the kernel to achieve a significant increase in throughput.

关键词： Wide area networks Computer networks Grid computing Bandwidth Operating systems Protocols Automatic control Control systems Kernel Throughput

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Multisequence synthesis over an integral domain 1

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International Conference on Cryptography and Lattices, CaLC 2001

作者： Wang, Li-Ping Zhu, Yue-Fei State Key Laboratory of Information Security Graduate School University of Science and Technology of China Beijing100039 China Department of Network Engineering Information Engineering University Zhengzhou450002 China

ISBN: (数字)9783540446705

ISBN: (纸本)3540424881

We first give an extension of F[x]-lattice basis reduction algorithm to the polynomial ring R[x] where F is a field and R an arbitrary integral domain. So a new algorithm is presented for synthesizing minimum length linear recurrence (or minimal polynomials) for the given multiple sequences over R. Its computational complexity is O(N2) multiplications in R where N is the length of each sequence. A necessary and sufficient conditions for the uniqueness of minimal polynomials are given. The set of all minimal polynomials is also described. © Springer-Verlag Berlin Heidelberg 2001.

关键词： Polynomials

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