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深入贯彻二十届三中全会精神推进出版业高质量发展

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北京印刷学院学报 2024年第8期32卷 1-5页

作者：李治堂北京印刷学院经济管理学院北京102600

深入贯彻二十届三中全会精神,推进出版业高质量发展,是建设文化强国和推进中国式现代化的重要任务。根据三中全会精神并结合出版业发展实际,本文提出应增强文化自信,自觉承担文化使命;培养优秀出版人才,激发出版创新创造活力;贯彻新发... 详细信息

深入贯彻二十届三中全会精神,推进出版业高质量发展,是建设文化强国和推进中国式现代化的重要任务。根据三中全会精神并结合出版业发展实际,本文提出应增强文化自信,自觉承担文化使命;培养优秀出版人才,激发出版创新创造活力;贯彻新发展理念,深化出版供给侧结构性改革;发展新质生产力,推动出版深度融合发展。

关键词：出版业全面深化改革高质量发展

Anomaly Detection System Based on Principal Component Analysis and Support Vector Machine

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Wuhan University Journal of Natural Sciences 2006年第6期11卷 1769-1772页

作者： li Zhanchun li zhitang liU Bin Network and Computing Center Huazhong University of Science and Technology Wuhan 430074 Hubei China

This article presents an anomaly detection system based on principal component analysis （PCA） and support vector machine （SVM）. The system first creates a profile defining a normal behavior by frequency-based scheme, and then compares the similarity of a current behavior with the created profile to decide whether the input instance is norreal or anomaly. In order to avoid overfitting and reduce the computational burden, normal behavior principal features are extracted by the PCA method. SVM is used to distinguish normal or anomaly for user behavior after training procedure has been completed by learning. In the experiments for performance evaluation the system achieved a correct detection rate equal to 92.2% and a false detection rate equal to 2.8%.

关键词： anomaly detection principal component analysis (PCA) support vector machine (SVM)

A Scalable Intrusion Detection System for IPv6

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Wuhan University Journal of Natural Sciences 2006年第6期11卷 1723-1726页

作者： liU Bin li zhitang li Zhanchun Network and Computing Center Huazhong University of Science and Technology Wuhan 430074 Hubei China

The next generation protocol IPv6 brings the new challenges to the information security. This paper presents the design and implementation of a network based intrusion detection system that support both IPv6 protocol and IPv4 protocol. This system＇s architecture is focused on performance, simplicity, and scalability. There are four primary subsystems that make it up： the packet capture, the packet decoder, the detection engine, and the logging and alerting subsystem. This paper further describes a new approach to packet capture whose goal is to improve the performance of the capture process at high speeds. The evaluation shows that the system has a good performance to detect IPv6 attacks and IPv4 attacks, and achieves 61% correct detection rate with 20% false detection rate at the speed of 100 Mb·s^-1.

关键词： intrusion detection system ipv6 packet capture

Improved Non-Sieving Quadratic Sieve

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Wuhan University Journal of Natural Sciences 2007年第1期12卷 67-70页

作者： HUANG Qingfeng li zhitang liN Huaiqing YANG Xiangdong Network and Computer Center Huazhong Universityof Science and Technology Wuhan 430074Hubei China College of Electronic Engineering Naval Universityof Engineering Wuhan 430033 Hubei China

In this paper, we give about prime numbers and Blum two theorems and one guess *** prove the two theorems about Blum *** the guess with the primitive non-sieving quadratic sieve,we proposed a improved non-sieving quadratic sieve（INQS）.In INQS,we not only reduce the times of squares and modulo n, but also imply another important conclusion,that is,we don＇t need to find the greatest common divisor of two integers as we do in *** some examples,we compare it with the primitive non-sieving quadratic sieve（PNQS）. It＇s faster to factor a integer by using improved non-sieving quadratic sieve than the primitive one.

关键词： primitive non-sieving quardratic sieve INQS ecllipse curve

An Efficient Multicast Source Authentication Protocol

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Wuhan University Journal of Natural Sciences 2006年第6期11卷 1831-1834页

作者： WANG Weidong li zhitang LU Chuiwei ZHANG Yejiang College of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 Hubei China College of Computer Science and Technology Huangshi Institute of Technology Huangshi 435003 Hubei China

We propose an efficient multicast source authentication protocol called efficient multi-tree-chains scheme （EMTC）, which shows more loss resistibility, less communication cost, and no delay at receivers. The EMTC scheme is based on combination of single Chain scheme and Hash Tree Chains scheme, and integrates the advantages of both. In this scheme, stream is firstly divided into blocks with n packets, and each block consists of m clusters, everyone of which contains a tree of packets. All clusters are chained together. Through EMTC, packets of one cluster can be authenticated by any packet of the previous cluster. Compared to other multicast authentication protocols, the proposed scheme has the following advantages： ① dramatically improves the resistance to burst packets loss; ② low computation and communication overhead; ③ imposes low delay on the sender side and no delay on the receiver side.

关键词： source authentication multi-tree-chains multicast

An Image Encryption Method Based on Bit Plane Hiding Technology

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Wuhan University Journal of Natural Sciences 2006年第5期11卷 1283-1286页

作者： liU Bin li zhitang TU Hao Network and Computing Center Huazhong Universityof Science and Technology Wuhan 430074 Hubei China

A novel image hiding method based on the correlation analysis of bit plane is described in this paper. Firstly, based on the correlation analysis, different bit plane of a secret image is hided in different bit plane of several different open images. And then a new hiding image is acquired by a nesting ＂Exclusive-OR＂ operation on those images obtained from the first step. At last, by employing image fusion technique, the final hiding result is achieved. The experimental result shows that the method proposed in this paper is effec rive.

关键词： image hiding image fusion bit plane correlation analysis

Dynamical Immune Intrusion Detection System for IPv6

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通讯和计算机（中英文版） 2005年第11期2卷 43-48页

作者： zhitang li Yao li Computer Science School Huazhong University of Science and Technology. Wuhan 430074 China

We have set up a project aiming at developing a dynamical immune intrusion detection system for IPv6 and protecting the next generation Internet from intrusion. We focus on investigating immunological principles in designing a dynamic multi-agent system for intrusion detection in IPv6 environment, instead of attempting to describe all that is intrusion in the network try and describe what is normal used and defined non-self as intrusion. The proposed abnormal detection model is designed as flexible, extendible and adaptable in order to meet the needs and preferences of network administrators for IPv6 environment.

关键词： Fuzzy Immune IPv6 Intrusion Detection

An Efficient Fair Electronic Cash System

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High Technology Letters 2003年第3期9卷 1-5页

作者：郭涛 li zhitang Tan Yunmeng Wu Shizhong Department of Computer Science & Technology Huazhong University of Science and Technology Wuhan 430074 P.R.China Department of Communication Science & Technology Huazhong University of Science and TechnologyWuhan 430074 P.R.China China National Information Security Testing Evaluation & Certification Center Beijing 100091P.R.China

In this paper, an efficient fair e-cash system is presented. Based on the improved Brands’ e-cash scheme, it is expanded by adding two roles, government and judges. The user can keep unconditionally anonymous in normal transactions. Authorized by the judges, the government can remove the identity of an illegal user with the help of the bank. So such misuse as blackmailing or money laundering can be prevented. Therefore, this scheme is more efficient, more suitable for adopting pre-processing and post-processing and more practical. In the paper, the details of the scheme are described, its security is proved, and its efficiency is analyzed.

关键词： e-cash electronic payment electronic commerce

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多卡并行加密VPN的性能分析

华中科技大学学报（自然科学版） 2005年第5期33卷 13-15页

作者：李芝棠孙诚华中科技大学计算机科学与技术学院湖北武汉430074

在对原有的IPsec模块设计进行性能分析的基础上,结合linux2.4系统的软中断机制,提出多卡并行加密的设计方案.为了适应该并行设计,采取对原有的IPsec模块细分,添加缓冲链表,以及关键区保护等修改,在linux2.4上实现了并行系统原型.最后对... 详细信息

在对原有的IPsec模块设计进行性能分析的基础上,结合linux2.4系统的软中断机制,提出多卡并行加密的设计方案.为了适应该并行设计,采取对原有的IPsec模块细分,添加缓冲链表,以及关键区保护等修改,在linux2.4上实现了并行系统原型.最后对原型性能进行理论分析,总结出并行加密VPN性能的计算公式,并根据实测数据验证了计算公式的正确性,为进一步提高利用并行技术提高VPN性能提供理论依据.

关键词：虚拟专用网高性能多卡并行