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Seal-based secure boot scheme for trusted computing platform

Journal of China Universities of Posts and Telecommunications 2010年第SUPPL. 2期17卷 16-21页

作者： Song, Cheng Peng, Wei-Ping Xin, Yang Luo, Shou-Shan Zhu, Hong-Liang Information Security Center Beijing University of Posts and Telecommunications Beijing 100876 China Key Laboratory of Network and Information Attack and Defence Technology Beijing University of Posts and Telecommunications Beijing 100876 China Beijing Safe-Code Technology Co. Ltd Beijing 100876 China

Secure boot is one important way to ensure the security of system for the terminal computing platform. The existing solutions for platform secure boot are based on verification by matching the reference measurements with the runtime measurements. These solutions are complex and inefficient. Based on the existing secure boot scheme, a secure boot model based on trusted personal computer (PC) is designed. Through the use of the existing trusted computing technology, a seal-based secure boot scheme for trusted computing platform is proposed in this paper. In this scheme, it is not necessary to generate the certificates on components of the reference measurements;it is also not necessary for verification proxy to verify the integrity of the runtime measurements. At the same time, the security of platform system is effectively guaranteed during booting. © 2010 The Journal of China Universities of Posts and Telecommunications.

关键词： Trusted computing

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A vulnerability test method for speech recognition systems based on frequency signal processing 3

A vulnerability test method for speech recognition systems b...

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3rd IEEE International Conference on Data Science in Cyberspace, DSC 2018

作者： Yang, Honghao Liang, Dong Kuang, Xiaohui Xu, Changqiao Institute of Network Technology Beijing University of Posts and Telecommunications Beijing China National Key Laboratory of Science and Technology on Information System Security Beijing China

ISBN: (纸本)9781538642108

With the development of information technology and the popularity of smart devices, voice recognition system, which is installed in many devices such as smartphones and automatic control equipment, is playing an increasingly important role in people's lives. Its appearance has greatly facilitated people's lives. However, their potential safety issues should also receive sufficient attention. Human perception of speech signals is affected by prior knowledge and context. It is natural for a people to unconsciously make up the obscure part of a voice signals he heard. But it doesn't work this way for a voice recognition software. In this condition, wrong results which are far from normal people's recognition will be returned from the software. That case rose above shows that voice recognition systems have potential vulnerability, which makes it possible that designed dangerous commands may be executed without operator's conscious. This paper firstly proposes a method to process voice signal and produce a lot of processed signals which are similar in human auditory but different in actual. Then, we propose a strategy to select processed voice signals aiming at a target speech recognition system. Finally, a way to test the vulnerability of voice recognition system is proposed in passing. Experimental results revealed that the above strategies effectively changed the output texts from speech recognition systems while the input voices were auditory changed little. This result confirmed the vulnerability of voice recognition system. © 2018 IEEE.

关键词： Speech recognition

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An efficient access control scheme based on CP-ABE with supporting attribute change in cloud storage systems

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International Journal of Wireless and Mobile Computing 2019年第1期16卷 41-49页

作者： Ye, Tao Cai, Yongquan Zhao, Xu Yang, Yongli Wang, Wei Zhu, Yi Faculty of Information Technology Beijing University of Technology Beijing China College of Computer Qinghai Nationalities University Xining China Faculty of Information Technology Beijing University of Technology Beijing Key Laboratory of Trusted Computing Natl. Engineering Laboratory for Critical Technologies of Information Security Classified Protection Beijing100124 China College of Applied Sciences Beijing University of Technology Beijing100124 China

The CP-ABE-based access control scheme, which can better realise the access control of many-to-multi-ciphertext shared in the cloud storage architecture, is still facing the problems that the system cost is too large, and the policy attribute revocation or restore is not flexible. This paper proposes an efficient access control scheme based on CP-ABE with supporting attribute change in cloud storage system. The fine-grained access control can be achieved by re-encryption mechanism which takes the minimum shared re-encryption key for policy attribute set. And then the access structure tree is expanded by creating a corresponding virtual attribute for each leaf node attribute. The analysis results of the scheme indicate that the efficient and flexibility of the attribute change is not only improved, but also the system cost is reduced. Copyright © 2019 Inderscience Enterprises Ltd.

关键词： Access control

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network traffic classification based on semi-supervised clustering

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Journal of China Universities of Posts and Telecommunications 2010年第SUPPL. 2期17卷 84-88页

作者： Lin, Guan-Zhou Xin, Yang Niu, Xin-Xin Jiang, Hui-Bai Information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China Key Laboratory of Network and Information Attack and Defence Technology Beijing University of Posts and Telecommunications Beijing 100876 China National Engineering Laboratory for Disaster Backup and Recovery Beijing 100876 China Beijing Safe-Code Technology Co. Ltd Beijing 100876 China

The diminished accuracy of port-based and payload-based classification motivates use of transport layer statistics for network traffic classification. A semi-supervised clustering approach based on improved K-Means clustering algorithm is proposed in this paper to partition a training network flows set that contains a huge number of unlabeled flows and scarce labeled flows. The variance of flow attributes is used to initialize clusters centers instead of the random selection of the cluster centers in initialization. Scarce labeled flows are selected to construct a mapping from the clusters to the predefined traffic classes set. The experimental results show that both the overall accuracy and square error (SSE) value of our algorithm present better than those based on normal K-Means algorithm defined in Ref. [5]. © 2010 The Journal of China Universities of Posts and Telecommunications.

关键词： Clustering algorithms

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Quantum secure direct communication with cluster states

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Science China(Physics,Mechanics & Astronomy) 2010年第7期53卷 1271-1275页

作者： CAO WeiFeng YANG YuGuang WEN QiaoYan College of Electric and Information Engineering Zhengzhou University of Light IndustryZhengzhou 450002China State Key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing 100876China College of Computer Science and Technology Beijing University of TechnologyBeijing 100124China State Key Laboratory of Integrated Services Network Xidian UniversityXi’an 710071China State key Laboratory of Information Security Gradute University of Chinese Academy of Sciences Beijing 100049China

A quantum secure direct communication protocol with cluster states is *** with the deterministic secure quantum communication protocol with the cluster state proposed by Yuan and Song(***.,2009,7:689),this protocol ca... 详细信息

关键词： quantum secure direct communication deterministic secure quantum communication cluster state

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Variable-rate convolutional network coding

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The Journal of China Universities of Posts and Telecommunications 2010年第3期17卷 91-96,117页

作者： MA Song-ya CHEN Xiu-bo LUO Ming-xing Information Security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and Telecommunications Beijing 100876 China Key Laboratory of Network and Information Attack and Defense Technology Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China National Engineering Laboratory for Disaster Backup and Recovery Beijing University of Posts and Telecommunications Beijing 100876 China School of Mathematics and Information Sciences Henan University Kaifeng 475004 China

Four types of variable-rate convolutional network codes are investigated over a single-source finite cyclic network. It is found that variable-rate generic, dispersion and broadcast can be implemented on the same network without changing the local encoding kernels of the non-source nodes. The efficient implementation has the advantage that each non-source node only needs to store one copy of the local encoding kernel within a session. However, it is also shown by an example that variable-rate multicast may not always be implemented under the above condition.

关键词： variable-rate convolutional generic convolutional dispersion convolutional broadcast convolutional multicast

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Secure AODV Routing Protocol Using SL Multi-Signcryption

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电子学报(英文版) 2007年第2期16卷 311-314页

作者： ZHANG Chuanrong YIN Zhonghai ZHANG Yuqing XIAO Guozhen Telecommunication Engineering Institute A irforce Engineering University Xi ＇ an 710077 China National Computer Network Intrusion Protection Center GUCAS Beijing 100049 China State Key Laboratory of Integrated Service Networks Xidian University Xi＇an 710071 China The Ministry of Education Key Laboratory of Computer Network and Information Security Xidian University Xi＇an 710071 China

Routing security is an important issue in secure ad hoc networks, and it appears to be a problem that is not trivial to solve. In this paper, we consider secure routing protocol and applied new cryptographic mechanism: multi-signcryption to routing protocol for ad hoc networks. SL multi-signcryption scheme efficiently provides message flexibility, order flexibility, message verifiability, order verifiability, message confidentiality, message unforgeability, non-repudiation and robustness. It is suitable for protecting messages and multi-signers from malicious attacks in networks. For this reason, using SL multi-signcryption, we propose a new secure AODV (Ad hoc on-demand distance vecter) routing protocol: SCRP (Signcryption based routing protocol). SCRP indeed enhances the security of AODV routing protocol and provides confidentiality, integrity, authentication, and non-repudiation to the routing message. Moreover, compared with other secure AODV, SCRP provides some other advantages such as lower computational cost and communicational overhead, flexibility of route message, and partially anonymous route.

关键词：安全AODV 路由协议 SL多重签密 ad-hoc网络

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Passive Beamforming Design for Intelligent Reflecting Surface Assisted MIMO Systems

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China Communications 2021年第3期18卷 18-28页

作者： Chenghao Feng Wenqian Shen Xinyu Gao Jianping An School of Information and Electronics Beijing Institute of TechnologyBeijing 100081China Shaanxi Key Laboratory of Information Communication Network and Security Xian University of Posts and TelecommunicationsXianShaanxi 710121China Huawei Technologies Co.Ltd. Beijing 100085China

Intelligent reflecting surfaces(IRSs)constitute passive devices,which are capable of adjusting the phase shifts of their reflected signals,and hence they are suitable for passive *** this paper,we conceive their design with the active beamforming action of multiple-input multipleoutput(MIMO)systems used at the access points(APs)for improving the beamforming gain,where both the APs and users are equipped with multiple ***,we decouple the optimization problem and design the active beamforming for a given IRS *** we transform the optimization problem of the IRS-based passive beamforming design into a tractable non-convex quadratically constrained quadratic program(QCQP).For solving the transformed problem,we give an approximate solution based on the technique of widely used semidefinite relaxation(SDR).We also propose a low-complexity iterative *** further prove that it can converge to a locally optimal ***,considering the practical scenario of discrete phase shifts at the IRS,we give the quantization design for IRS elements on basis of the two *** simulation results demonstrate the superiority of the proposed solutions over the relevant benchmarks.

关键词： intelligent reflecting surface MIMO systems passive beamforming

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An Overview of General Theory of security

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China Communications 2017年第7期14卷 1-10页

作者： Min Lei Yixian Yang Xinxin Niu Yu Yang Jie Hao Information Security Center Beijing University of Posts and Telecommunications Guizhou University Guizhou Provincial Key Laboratory of Public Big Data Jiangsu Engineering Center of Network Monitoring Nanjing University of Information Science & Technology

Cyber security lacks comprehensive theoretical guidance. General security theory, as a set of basic security theory concepts, is intended to guide cyber security and all the other security work. The general theory of security aims to unify the main branches of cyber security and establish a unified basic theory. This paper proposal an overview on the general theory of security, which is devoted to constructing a comprehensive model of network security. The hierarchical structure of the meridian-collateral tree is described. Shannon information theory is employed to build a cyberspace security model. Some central concepts of security, i.e., the attack and defense, are discussed and several general theorems on security are presented.

关键词： cyber security network attack and defense meridian-collateral theory

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Construction of Integrated protection System for Industrial Control System Based on Trusted Computing

Construction of Integrated Protection System for Industrial ...

引用

2021 International Conference on Intelligent Computing, Automation and Applications, ICAA 2021

作者： Tao, Yuan Hu, Wei Li, Sheng Third Research Institute of Ministry of Public Security Shanghai China National Engineering Laboratory for Key Technology of Classified Information Security Protection Beijing China

ISBN: (纸本)9781665437301

Industrial control system requires high availability. In principle, security measures should not adversely affect the basic functions of high availability industrial control system. The method of building a secure and trusted PLC are proposed based on trusted computing. Under the premise of ensuring business security, the security protection system of industrial control system is built through trusted computing, and hardware solutions are provided on the security master controller. In order to prevent the attack from the industrial control system network, the encryption technology is used to ensure the confidentiality and integrity of the communication session, which are between the field of control equipment layer and the process monitoring equipment layer, so as to make the industrial control system in a stable and reliable state. © 2021 IEEE.

关键词： Trusted computing

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