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IEEE Global Communications Conference

作者： Dawei Chu Kaijie Zhu Quanwei Cai Jingqiang Lin Fengjun Li Le Guan Lingchen Zhang State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences School of Cyber Security University of Chinese Academy of Sciences National Digital Switching System Engineering & Technological R&D Center CHINA Data Assurance and Communication Security Research Center Chinese Academy of Sciences Department of Electrical Engineering and Computer Science The University of Kansas USA Department of Computer Science University of Georgia USA

ISBN: (数字)9781728109626

ISBN: (纸本)9781728109633

Information systems are deployed in clouds as virtual machines (VMs) for better agility, elasticity and reliability. It is necessary to safekeep their cryptographic keys, e.g., the private keys used in TLS and SSH, against various attacks. However, existing virtualization solutions do not improve the cryptography facilities of in-cloud systems. This paper presents SECRIN, a secure cryptography infrastructure for VMs in the cloud. SECRIN is composed of a) virtual cryptographic devices implemented in VM monitors (VMMs), and b) a device management tool integrated in the virtualization management system. A virtual device receives requests from VMs, computes with cryptographic keys within the VMM and returns results. The keys appear only in the VMM's memory space, so that they are kept secret even if the VMs were compromised. With the management tool, the operator of virtualization management systems assigns virtual cryptographic devices to a VM as well as other resources, while the tenant (or owner) of a VM still holds proper controls on the keys. The virtual devices work compatibly with live migration, and the cryptographic computations are not interrupted when the VMs are moving from a host to another. We develop the SECRIN prototype with KVM-QEMU and oVirt. Experimental results show that, it works compatibly with existing virtualization solutions, provides reliable cryptographic computing services for applications, and is secure against attacks happening in VMs.

关键词： Cryptography Virtualization Cloud computing Virtual machine monitors Password Reliability Tools

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TEAGS: Time-aware text embedding approach to generate subgraphs

arXiv

引用

arXiv 2019年

作者： Hosseini, Saeid Najafipour, Saeed Cheung, Ngai-Man Yin, Hongzhi Kangavari, Mohammad Reza Zhou, Xiaofang ST Electronics - SUTD Cyber Security Lab. Singapore University of Technology and Design Singapore School of Information Technology and Electrical Engineering University of Queensland Brisbane Australia Computational Cognitive Model Research Lab. School of Computer Engineering Iran University of Science and Technology Iran

Given a graph over which the contagions (e.g. virus, gossip) propagate, leveraging subgraphs with highly correlated nodes is beneficial to many applications. Yet, challenges abound. First, the propagation pattern between a pair of nodes may change in various temporal dimensions. Second, not always the same contagion is propagated. Hence, state-of-the-art text mining approaches ranging from similarity measures to topic-modeling cannot use the textual contents to compute the weights between the nodes. Third, the word-word co-occurrence patterns may differ in various temporal dimensions, which increases the difficulty to employ current word embedding approaches. We argue that inseparable multi-aspect temporal collaborations are inevitably needed to better calculate the correlation metrics in dynamical processes. In this work, we showcase a sophisticated framework that on the one hand, integrates a neural network based time-aware word embedding component that can collectively construct the word vectors through an assembly of infinite latent temporal facets, and on the other hand, uses an elaborate generative model to compute the edge weights through heterogeneous temporal attributes. After computing the intra-nodes weights, we utilize our Max-Heap Graph cutting algorithm to exploit subgraphs. We then validate our model through comprehensive experiments on real-world propagation data. The results show that the knowledge gained from the versatile temporal dynamics is not only indispensable for word embedding approaches but also plays a significant role in the understanding of the propagation behaviors. Finally, we demonstrate that compared with other rivals, our model can dominantly exploit the subgraphs with highly coordinated nodes. Copyright © 2019, The Authors. All rights reserved.

关键词： Embeddings

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Intelligence security Check System Using Face Recognition Algorithm: A Review

Intelligence Security Check System Using Face Recognition Al...

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International Conference on Electronics, computer and Computation (ICECCO)

作者： Lateefah Abdul-azeez Abiodun Musa Aibinu Sodiq Olanrewaju Akanmu Taliha Abiodun Folorunso Momoh-Jimoh E. Salami Department of Cyber Security Science Federal University of Technology Minna Niger state Nigeria Department of Mechatronics Engineering Federal University of Technology Minna Niger state Nigeria Elizade University Ilara-Mokin Ondo State Nigeria

ISBN: (数字)9781728151601

ISBN: (纸本)9781728151618

One of the famous biometric in use is the facial recognition, which uses statistical measurement of an individual face features to discover or determine his/her identity. Human are prone to errors or mistakes, therefore, using only security personnel cannot give us a perfect security mechanism. This paper explains the importance of biometric and also present various methods which biometric application can applied in solving various problem. It focuses on face recognition and face detection techniques which include Principle Components Analysis (PCA), Hidden Markov Model (HMM), and the Discrete Wavelet Transform (DWT). It briefly explains how the use of symmetry of the face can be used for recognition, the combination of audio and video in face recognition and also show that a face can be detected in a video. It also shows the various strengths and weaknesses from each method used.

关键词： biometrics (access control) discrete wavelet transforms face recognition feature extraction hidden Markov models principal component analysis video signal processing Facial Recognition discrete wavelet transform Hidden Markov models Video signal processing Feature extraction principal components analysis safety check Statistical Measurement Videotapes face recognition algorithm security Personnel

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An algorithm for computing the factor ring of an ideal in a Dedekind domain with finite rank

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Science China Mathematics 2018年第5期61卷 783-796页

作者： Dandan Huang Yingpu Deng Department of Cyber Space Security School of Software EngineeringJinling Institute of Technology Key Laboratory of Mathematics Mechanization National Center for Mathematics and Interdisciplinary SciencesAcademy of Mathematics and Systems Science Chinese Academy of Sciences School of Mathematical Sciences University of Chinese Academy of Sciences

We give an algorithm for computing the factor ring of a given ideal in a Dedekind domain with finite rank, which runs in deterministic and polynomial time. We provide two applications of the algorithm:judging whether a given ideal is prime or prime power. The main algorithm is based on basis representation of finite rings which is computed via Hermite and Smith normal forms.

关键词： deterministic polynomial-time test Dedekind domains basis representation Hermite and Smith normal forms

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Corrigendum to “Fabrication of efficient and economical dye-sensitized solar cells using carbon-coated nanotextured silicon wafers counter electrodes” [Synth. Met. 301 (2024) 117537]

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Synthetic Metals 2024年 302卷

作者： Ahmed F. Abdelaal Muhammad Younas Ryan N. Iman Asrar Damdam Amal M. Al-Amri Turki N. Baroud Department of Mechanical Engineering King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia Core Research Facilities King Fahd University of Petroleum & Minerals 31261 Dhahran Saudi Arabia Department of Physics King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia Computer Electrical and Mathematical Science and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia Department of Physics College of Science and Arts King Abdulaziz University Rabigh 21911 Saudi Arabia Materials Science and Engineering Department King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia Interdisciplinary Research Center for Membranes and Water Security KFUPM Dhahran 31261 Saudi Arabia

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A Vigorous Chaotic Function Based Image Authentication Structure

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Journal of Physics: Conference Series 2021年第1期1854卷

作者： Amit Kumar Singh Vaibhav C. Gandhi M. Madhusudhana Subramanyam Sarvesh Kumar Sandeep Aggarwal Shivam Tiwari Department of Information Technology Amity institute of Information Technology Amity University Rajasthan Jaipur India Department of Computer Science & Engineering Department Navrachana University Vadodara Gujarat Department of Computer Science College of Arts & Science King Khalid University Dhahran Al janoub Kingdom of Saudi Arabia Department of Cloud Technology & Information Security Integral University Lucknow Uttar Pradesh Department of Computer Science and Applications DAV College Abohar

In this work framework request picture square size and tumultuous capacity control as a piece of information. Here this builds the adaptability and mix of a secret phrase. As the quality of a secret key relies upon number bits or characters. So proposed work store entire square as the mystery key of the client. For creating an alternate arrangement of pictures proposed work utilize tumultuous capacity where an alternate arrangement of muddling is feasible for a similar picture. The proposed plan will be usable anyplace and whenever with a low mistake rate just as a quicker outcome confirmation. This exposition work primarily centered around the snap-based methodology and mix with the proposed algorithmic disorderly approach. A test was done on a genuine arrangement of pictures and results that that proposed work has high join rate, low execution time when contrasted with past secret word creation calculation.

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Solution Path Algorithm for Twin Multi-class Support Vector Machine

arXiv

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arXiv 2020年

作者： Chen, Liuyuan Zhou, Kanglei Jing, Junchang Fan, Haiju Li, Juntao Journal Editorial Department Henan Normal University Xinxiang453007 China School of Computer Science and Engineering Beihang University Beijing100191 China Henan International Joint Laboratory of Cyberspace Security Applications Information Engineering College Henan University of Science and Technology Luoyang471023 China College of Computer and Information Engineering Henan Normal University Xinxiang453007 China College of Mathematics and Information Science Henan Normal University Xinxiang453007 China

The twin support vector machine and its extensions have made great achievements in dealing with binary classification problems. However, it suffers from difficulties in effective solution of multi-classification and fast model selection. This work devotes to the fast regularization parameter tuning algorithm for the twin multi-class support vector machine. Specifically, a novel sample data set partition strategy is first adopted, which is the basis for the model construction. Then, combining the linear equations and block matrix theory, the Lagrangian multipliers are proved to be piecewise linear w.r.t. the regularization parameters, so that the regularization parameters are continuously updated by only solving the break points. Next, Lagrangian multipliers are proved to be 1 as the regularization parameter approaches infinity, thus, a simple yet effective initialization algorithm is devised. Finally, eight kinds of events are defined to seek for the starting event for the next iteration. Extensive experimental results on nine UCI data sets show that the proposed method can achieve comparable classification performance without solving any quadratic programming problem. Copyright © 2020, The Authors. All rights reserved.

关键词： Iterative methods

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Heterogeneity of human brain tumor with lesion identification, localization, and analysis from MRI

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Informatics in Medicine Unlocked 2018年 13卷 139-150页

作者： Roy, Sudipta Bhattacharyya, Debnath Bandyopadhyay, Samir Kumar Kim, Tai-Hoon Department of Computer Science & Engineering Institute of Computer Technology Ganpat University Kherva Mehsana 384012 Gujarat India Department of Computer Science & Engineering Vignan's Institute of Information Technology Visakhapatnam 530049 India Department of Computer Science & Engineering Calcutta University Technology Campus Kolkata 700098 India Department of Convergence Security Sungshin Women's University Seoul 136-742 South Korea

Objective: Accurate identification of brain tumor and its heterogeneity is a critical task in planning for proper therapy. A reliable fully automatic detection and analysis method for the brain tumor is necessary for an efficient measurement of the tumors and its extent. This paper presents a computerized approach to brain tumor-edema detection and analysis from the MRI of brain sequences. Method: computer-aided diagnosis systems are focused on several research activities and the ideas of the study of brain images with the diverse modality of heterogeneity by applying better image analysis algorithms. The proposed automated modern approach includes several stages of image segmentation, area and volume calculation, and its location findings using statistical and unsupervised clustering prediction method. Result: The outcome of the proposed computerized method is compared with reference images and gives very promising results. Performance of our proposed methodology is also assessed with the gold standard recent comparable method and our method gives better results in context to accuracy and error metrics. Conclusion: The proposed method is capable of improving the overall detection, segmentation, and quantification of a variety of tumors for different cases from multiple standard datasets. © 2018

关键词： Abnormality detection Accuracy estimation Brain tumor Heterogeneity Magnetic resonance imaging Segmentation

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Problems and Prospects of Internet of Things to the Automobile Industry in Nigeria

Problems and Prospects of Internet of Things to the Automobi...

引用

International Conference of the IEEE Nigeria computer Chapter (NigeriaComputConf)

作者： Aliyu Mustapha Abdullahi Kutiriko Abubakar Haruna Dokoro Ahmed Isah Abubakar Ndakara Abubakar Mohammed Idris Abdullahi Raji Egigogo Mohammed Abdulkadir Department of Industrial and Technology Education Federal University of Technology Minna Nigeria Department of Informatics Kings College London Department of Computer Science Gombe State Polytechnic Bajoga Nigeria Electrical and Electronics Department Federal University of Technology Minna Nigeria Department of Cyber Security Science Federal University of Technology Minna Nigeria

ISBN: (纸本)9781728107141

This study was carried out to identify the problems and prospects of the Internet of Things to the automobile industry in Nigeria. Two research questions were answered. The descriptive survey design was employed and the target population was made up of experts in Automobile technology and Information and Communication technology (ICT). The instrument used for data collection was a structured questionnaire. The questionnaire was subjected to face and content validation by five experts; 2 in Automobile technology and 3 in computer/ cyber security. Cronbach Alpha was used to determine the reliability coefficient of the questionnaire and it was found to be 0.87. The data collected from the respondents we r e analyzed using mean. The findings on the problems of IoT to the automobile industry in Nigeria include among others security, availability and stability of internet network service. The Findings related to the prospects of IoT in the automobile industry in Nigeria include among others, IoT connects and adds security to the vehicles, it also turns a vehicle into a hub of infotainment. Based on the findings, it was recommended among others that the government should provide financial support to strengthen data confidentiality, availability and stability of Internet network service.

关键词： Automobile industry Internet of things Innovation and technology Problems and prospects automobile industry Internet of things Nigeria reliability coefficient Prospecting Thing Target Population Online resources vehicle Information and communication technology

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A Hole Repairing Method Based on Edge-Preserving Projection 12th

A Hole Repairing Method Based on Edge-Preserving Projection

引用

12th International Conference on e-Learning and Games, Edutainment 2018

作者： Wang, Yinghui Zhao, Yanni Wang, Ningna Ning, Xiaojuan Shi, Zhenghao Zhao, Minghua Lv, Ke Huang, Liangyi Institute of Computer Science and Engineering Xi’an University of Technology Xi’an China Shaanxi Key Laboratory of Network Computing and Security Technology Xi’an China Department of Computer Science Shannxi Vocational and Technical College Xi’an China Booking B.V. Herengracht 597 Amsterdam1017 CE Netherlands Institute of Automation Chinese Academy of Sciences Beijing China School of Engineering and Applied Science George Washington University Washington D.C. United States

ISBN: (纸本)9783030237110

A point cloud hole repairing method based on edge-preserving projection is proposed in order to maintain sharp features of holes. First, the hole boundary points are acquired by quadrants and angles, then connections among 3D hole boundary points are projected onto the two-dimensional plane using the edge-preserving projection. Secondly, the two-dimensional region obtained from projection is subjected to point collectivization for obtaining filling points, at the same time, the radial-basis interpolation mapping technique is used to construct the hole surface according to the 3D hole boundary point. Finally, the two-dimensional filling points are reflected onto the surface of the constructed hole to complete hole repairing. Experimental results show that our method can effectively repair the hole of the point cloud and restore the sharp features of the hole. © 2019, Springer Nature Switzerland AG.

关键词： Repair

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