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14th International Conference on Information security and Cryptology, Inscrypt 2018

作者： Anada, Hiroaki Matsushima, Tomohiro Su, Chunhua Meng, Weizhi Kawamoto, Junpei Bag, Samiran Sakurai, Kouichi Department of Information Security University of Nagasaki Nagasaki Japan Department of Informatics Graduate School and Faculty of Information Science and Electrical Engineering Kyushu University Fukuoka Japan Division of Computer Science University of Aizu Aizuwakamatsu Japan Department of Applied Mathematics and Computer Science Technical University of Denmark Kongens Lyngby Denmark School of Computing Science Newcastle University Newcastle upon Tyne United Kingdom

ISBN: (纸本)9783030142339

Recently, Bitcoin is becoming one of the most popular decentralized cryptographic currency technologies, and Bitcoin mining is a process of adding transaction records to Bitcoin’s public ledger of past transactions or blockchain. To obtain a bitcoin, the mining process involves compiling recent transactions into blocks and trying to solve a computationally difficult puzzle, e.g., proof of work puzzle. A proof of work allows miners the ability to quantify how much work a given proof contains. Basically, the required time for mining is decided in advance, but problems will occur if the value is large for dispersion. In this paper, we first accept that the required time between consecutive blocks follows the exponential distribution. That is, the variance is stable as long as the expected time is fixed. Then, we focus on the graph clique mining technique proposed by the literature, like Tromp (BITCOIN 2015) and Bag-Ruj-Sakurai (Inscrypt 2015), which is based on a computational difficulty problem of searching cliques of undirected graphs, where a clique is a subset of vertices. In particular, when the clique size is two, graph clique mining can be used to gain Bitcoins. The previous work also claimed that if the clique size is parameterized and increased, even if the expected time is fixed, the variance would not be stable. However, no qualitative or quantitative results were given to support their claim. Motivated by this issue, in this work, we propose a simple search algorithm for graph cliques mining, and perform a small scale evaluation on Bitcoin and Graph cliques’s solo mining to investigate the variance issue. © 2019, Springer Nature Switzerland AG.

关键词： Blockchain

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The role of semantics in games and simulations

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computers in Entertainment 2008年第4期6卷

作者： Tutenel, Tim Bidarra, Rafael Smelik, Ruben M. De Kraker, Klaas Jan D. Delft University of Technology Netherlands TNO Defense Safety and Security Netherlands Faculty of Electrical Engineering Mathematics and Computer Science Delft University of Technology Netherlands Modeling and Simulation Department TNO Defense Safety and Security Netherlands

Powerful graphics hardware is enabling strong improvements in both the appearance and the complexity of virtual worlds for games and simulations. However, current practices in the design and development of virtual worlds mostly resemble high-tech variants of traditional handcrafts, resulting in increasingly unbearable design costs. In this article we state that an essential key to overcoming these problems lies in the enrichment of object models with several kinds of semantic data. We discuss numerous and promising uses for semantic information in virtual worlds, and show, for many of them, how previous results of recent research can be successfully applied. We also identify the fundamental challenges in this new cross-disciplinary area, and point out a number of open issues lying ahead, including the need for (i) a suitable way of specifying semantic data, providing a powerful vocabulary that is useful and usable for all disciplines involved in game design and development;(ii) a seamless integration of semantic data integrated with procedural generation techniques, in order to provide designers with a new and powerful generation of tools;and (iii) a consistency maintenance among evolving objects in a changeable environment, for which powerful constraint-solving methods will be instrumental. We conclude that, as the expectancy for future games and simulations steadily shifts from improved graphics and appearance towards improved character behavior, plausible realism and coherent gameplay, embedding the game world and its objects with richer semantics is going to play a crucial role. We can therefore expect that, in the near future, increasing research efforts and influential results will be emerging in this new exciting area. © 2008 ACM.

关键词： Semantics

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Data Preprocessing Technology in Network Traffic Anomaly Detection

Data Preprocessing Technology in Network Traffic Anomaly Det...

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作者： Duan, Xueyuan Fu, Yu Wang, Kun Department of Information Security Naval University of Engineering Wuhan430033 China College of Computer and Information Technology Xinyang Normal University Xinyang464000 China Henan Key Laboratory of Analysis and Applications of Education Big Data Xinyang464000 China School of Mathematics and Information Engineering Xinyang Vocational and Technical College Xinyang464000 China

computer network plays a very important role in today’s world. With the development of network technology and the increasing popularity of network topology, network management is facing huge challenges. Among them, finding network traffic anomalies is one of the most important tasks in network monitoring, and is an important technology in network intrusion, security monitoring, and performance maintenance. This paper aims to study data preprocessing techniques in network traffic anomaly detection. This paper firstly introduces the network traffic measurement characteristics completely, and then selects and applies the data preprocessing algorithm, constructs a complete data preprocessing framework, and conducts experiments for the abnormal detection of network multi-dimensional characteristic traffic and the abnormal detection of unit-level characteristic traffic. The superiority of the data preprocessing technology in this paper, by reducing the data, determines the data preprocessing threshold of this paper to ensure that the data preprocessing is maximized. Experiments show that the data preprocessing technology constructed in this paper has about 20% more data filtering than traditional data filtering, which shortens the amount of detection data. The threshold is around 0.6, and data preprocessing can maximize the reduction of data without destroying the integrity of the attacked data. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Data mining

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Application of Finite Partially Ordered Sets in the Determination of Production Chain Planning Strategy 7

Application of Finite Partially Ordered Sets in the Determin...

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7th International Symposium on Multidisciplinary Studies and Innovative Technologies, ISMSIT 2023

作者： Sobchuk, Valentyn Laptiev, Oleksandr Tsyganivska, Iryna Zhuravlev, Viktor Taras Shevchenko National University of Kyiv Engineering Sciences Mechanical and Mathematical Faculty Department of Integral and Differential Equations Kyiv Ukraine Taras Shevchenko National University of Kyiv Technical Sciences Faculty of Information Tehnology Department of Cyber Security and Information Protection Kyiv Ukraine Taras Shevchenko National University of Kyiv Physics and Mathematics Sciences Mechanical and Mathematical Faculty Department of Algebra and Computer Mathematics Kyiv Ukraine

ISBN: (纸本)9798350342154

Using the implemented planning mechanisms in modern IAMS, an approach has been developed for the application of elements of the apparatus of the mathematical theory of categories for the automation of production processes of enterprises. The use of elements of the mathematical theory of categories in IAMS provides an opportunity to build a system model that allows analyzing and predicting the behavior of subsystems, providing automatic process control, identifying and eliminating problems, and optimizing resources and processes. Category theory provides formal tools for describing the structure and relationships between objects in a system. In the context of automation of production processes, it can be applied to describe system components, their relationships and interactions between them. For manufacturing enterprises, in which the number of production divisions or production centers of a separate division (production site) is limited, the peculiarities of the application of the mathematical apparatus of the theory of categories for planning production processes and the distribution of costs in the formation of the cost of finished products have been investigated. The conditions for building strategies for utilization of technological resources of the enterprise to ensure their effective use have been obtained. © 2023 IEEE.

关键词： Automation

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A new secret sharing scheme based on commutative encrypted function

A new secret sharing scheme based on commutative encrypted f...

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International Forum on Information Technology and Applications

作者： He, Jun Li, Ximei Li, Lijuan Tang, Chunming Computer and Information Engineering Department HuaiHua Vocational and Technical College Huaihua Hunan 418000 China School of Computer and Communication Hunan University Changsha Hunan 410082 China School of Mathematics and Information Science Guangzhou University Guangzhou Guangdong 510006 China State Key Laboratory of Information Security Institute of Software Science CAS Beijing 100080 China

ISBN: (纸本)9780769541150

With the characteristic that the commutativity of modular exponential function makes the specific order of secret distribution process less important and on basis of the abstruseness of discrete logarithm, this paper proposed a new secret sharing scheme. In the scheme, the participants themselves select the private keys, which can avoid the distributor's fraud and reduce the distribution's burden as well as ensure the scheme's reuse. The credible participants can join in or leave the participants collection at any time without restarting the scheme procedures. © 2010 IEEE.

关键词： Exponential functions

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A new forward-secure proxy signature scheme

A new forward-secure proxy signature scheme

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2010 International Forum on Information Technology and Applications, IFITA 2010

ISBN: (纸本)9780769541150

Based on the shortcomings of WCF scheme, this paper proposed an improved forward-secure proxy signature scheme. The new scheme does not evolve the authorized keys, but the proxy signer's private key, making it have the forward security. Even if the proxy signer's signature key at a certain time segment is given away, the attacker could not get the proxy signer's signature key in the previous time segment. Under these assumptions of strong RSA problem, computational Diffie-Hellman problem being hard, and discrete logarithm problem being hard in a finite field, the scheme has favorable security. © 2010 IEEE.

关键词： Authentication

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3D CAD Drawing Watermarking Based on Three Components

3D CAD Drawing Watermarking Based on Three Components

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IEEE International Conference on Image Processing

作者： Ki-ryong Kwon Hey-jung Chang Gwang S. Jung Kwang-seok Moon Suk-hwan Lee Divisiorn of Electronic Computer and Telecommuication Engineering Pukyong National University South Korea Department of Mathematics and Computer Science CUNY USA Department of Information Security Tongmyong University South Korea

This paper proposed a watermarking for copyright protection of 3D CAD design drawing based on 3 basic components that are Line, ARC, and 3DFACE. The watermark is embedded into the length in Line, the radius of curvature in Arc, and the length ratio of two sides in 3DFACE. Selecting the embedding component can be done by the distribution of 3D drawing or preference of owners. By experimental result, we confirmed the invisibility of embedded watermarks as well as the robustness in various attacks.

关键词： Watermarking Design automation Solid modeling Copyright protection engineering drawings Robustness Graphics Construction industry Moon Telecommunication computing

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The Immense Impact of Reverse Edges on Large Hierarchical Networks

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engineering 2024年第5期36卷 240-249页

作者： Haosen Cao Bin-Bin Hu Xiaoyu Mo Duxin Chen Jianxi Gao Ye Yuan Guanrong Chen Tamás Vicsek Xiaohong Guan Hai-Tao Zhang MOE Engineering Research Center of Autonomous Intelligent Unmanned Systems State Key Laboratory of Intelligent Manufacturing Equipment and TechnologySchool of Artificial Intelligence and AutomationHuazhong University of Science and TechnologyWuhan 430074China School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore Jiangsu Key Laboratory of Networked Collective Intelligence School of MathematicsSoutheast UniversityNanjing 210096China Department of Computer Science Rensselaer Polytechnic InstituteTroyNY 12180USA Department of Electronic Engineering City University of Hong KongHong Kong 999077China Department of Biological Physics Eötvös UniversityBudapest 1117Hungary MOE Key Laboratory for Intelligent Networks and Network Security School of Automation Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China

Hierarchical networks are frequently encountered in animal groups,gene networks,and artificial engineering systems such as multiple robots,unmanned vehicle systems,smart grids,wind farm networks,and so *** structure of a large directed hierarchical network is often strongly influenced by reverse edges from lower-to higher-level nodes,such as lagging birds’howl in a flock or the opinions of lowerlevel individuals feeding back to higher-level ones in a social *** study reveals that,for most large-scale real hierarchical networks,the majority of the reverse edges do not affect the synchronization process of the entire network;the synchronization process is influenced only by a small part of these reverse edges along specific *** surprisingly,a single effective reverse edge can slow down the synchronization of a huge hierarchical network by over 60%.The effect of such edges depends not on the network size but only on the average in-degree of the involved *** overwhelming majority of active reverse edges turn out to have some kind of“bunching”effect on the information flows of hierarchical networks,which slows down synchronization *** finding refines the current understanding of the role of reverse edges in many natural,social,and engineering hierarchical networks,which might be beneficial for precisely tuning the synchronization rhythms of these *** study also proposes an effective way to attack a hierarchical network by adding a malicious reverse edge to it and provides some guidance for protecting a network by screening out the specific small proportion of vulnerable nodes.

关键词： Synchronizability Large hierarchical networks Reverse edges Information flows Complex networks

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Energy optimal selection of access points in wireless sensor networks

Energy optimal selection of access points in wireless sensor...

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2011 5th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing, IMIS 2011

作者： Xin, Qin Yao, Xiaolan He, Wei Universite Catholique de Louvain Department of Applied Mathematics Louvain-la-Neuve Belgium National University of Defense Technology School of Computer Science Changsha China State Key Laboratory of Power Transmission Equipment and System Security and New Technology College of Electrical Engineering Chongqing University China

ISBN: (纸本)9780769543727

In a Wireless Sensor Networks (WSN), there are normally one or several sensor nodes working as Access Points (AP), which are able to provide a relay for other sensors to an external Internet connection. Since WSNs are resource-constrained, the selection of APs is very crucial in economizing power usage. In this paper, we study the optimal selection of APs to maximize the WSN lifetime. This issue is closely related to routing protocols in WSN. We propose a new adaptive multi-path routing protocol to reduce the energy consumption and guarantee QoS requirements with respect to transmission delay. In this paper, we formulate the issues we mentioned above as a non-linear NP-hard optimization problem. Due to the high computation complexity of this problem, we proposed two polynomial-time approximation algorithms to optimally select APs in the WSN that based on the framework in [41]. Combining with our new adaptive multi-path routing protocol, our preliminary simulation results show that our schemes can save more than 20% energy compared with the existing APs selection schemes with single-path routing protocols. © 2011 IEEE.

关键词： Routing protocols

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Distributed Privacy-Preserving Secure Aggregation in Vehicular Communication

Distributed Privacy-Preserving Secure Aggregation in Vehicul...

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International Conference on Intelligent Networking and Collaborative Systems (INCOS)

作者： Bo Qin Qianhong Wu Josep Domingo-Ferrer Willy Susilo Department of Mathematics School of Science Xi'an University of Technology China Department of Computer Engineering and Mathematics Universitat Rovira i Virgili Tarragona Spain School of Computer Wuhan University of China China Centre for Computer and Information Security Research School of Computer Science and Software Engineering University of Wollongong Wollongong Australia

Vehicular ad hoc networks (VANETs), formed by computers embedded in vehicles and the traffic infrastructure, are expected to develop in the near future to improve traffic safety and efficiency. To this end, VANETs should be designed to be resistant against various abuses and attacks. In this paper, we first review the existing proposals to provide security, privacy, and data aggregation in vehicle-to-vehicle communication. We then address the fundamental issue of achieving these conflicting properties in a unified solution, having observed that separate efforts cannot fulfill the VANET design objectives. A set of new mechanisms are suggested for efficiently managing identities and securely compressing cryptographic witnesses, which are among the major obstacles to the deployment of strong security mechanisms in VANETs.

关键词： Vehicles Public key Privacy Aggregates Authentication

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