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7th ACM SIGDA International Symposium on Field-Programmable Gate Arrays, FPGA'09

作者： Rubin, Raphael DeHon, André Computer and Information Science University of Pennsylvania 3330 Walnut Street Philadelphia PA 19104 United States Electrical and Systems Engineering University of Pennsylvania 200 S. 33rd Street Philadelphia PA 19104 United States

ISBN: (纸本)9781605584102

Aggressive scaling increases the number of devices we can integrate per square millimeter but makes it increasingly difficult to guarantee that each device fabricated has the intended operational characteristics. Without careful mitigation, component yield rates will fall, potentially negating the economic benefits of scaling. The fine-grained reconfigurability inherent in FPGAs is a powerful tool that can allow us to drop the stringent requirement that every device be fabricated perfectly in order for a component to be useful. To exploit inherent FPGA reconfigurability while avoiding full CAD mapping, we propose lightweight techniques compatible with the current single bitstream model that can avoid defective devices, reducing yield loss at high defect rates. In particular, by embedding testing operations and alternative path configurations into the bitstream, each FPGA can avoid defects by making only simple, greedy decisions at bitstream load time. With 20% additional tracks above the minimum routable hannel width, routes can tolerate 0.01% switch defect rates, raising yield from essentially 0% to near 100%. Copyright 2009 ACM.

关键词： Field programmable gate arrays (FPGA)

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Development of an Active Contour Method Based on Contrast Features to Detect Keratitis in the Cornea

Development of an Active Contour Method Based on Contrast Fe...

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International Conference on Informatics and Computing (ICIC)

作者： Wahyu Saptha Negoro Sumijan Saiful Bukhori Faculty of Engineering and Computer Science Universitas Potensi Utama Medan Indonesia Faculty of Engineering and Computer Science Universitas of UPI YPTK Padang Indonesia Faculty of Computer Science Information Systems Universitas of Jember Jember Indonesia

ISBN: (数字)9798331517601

ISBN: (纸本)9798331517618

Digital Image Processing (DIP) is a scientific discipline with techniques for processing images using computers. The digital image is expressed in a two-dimensional matrix. The research object is keratitis on the cornea. The keratitis image was obtained using a slit lamp photo at Rs. Padang Aye Center (PAC), based on the results ofthe diagnosis by looking at the development of the infiltrate or also called hypopyon, by measuring the ulcer borders horizontally and vertically with the aim of evaluating improvements that respond to treatment. The clinical results obtained cannot determine the extent and circumference of the keratitis layer area that responds to keratitis as a whole. The images used were 206 slit lamp images of keratitis. This research provides knowledge in the form of contrast values in the Active Contour method, resulting in an update called Contras Adjustment (CA)/CAimg, in correctly segmenting keratitis objects and providing measurements of the area and circumference of the keratitis area. The results of this study were from 206 slit lamp images, 195 slit lamp images of keratitis that detected keratitis correctly and 11 slit lamp images of keratitis that could not be detected, resulting in an accuracy of $\mathbf{9 5 \%}$.

关键词： Accuracy Cornea Digital images Picture archiving and communication systems Personnel MATLAB Informatics Standards Active contours Testing

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Ciphertext-only fault analysis of GIFT lightweight cryptosystem

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science China(information sciences) 2022年第3期65卷 263-265页

作者： Wei LI Shan CAO Dawu GU Jiayao LI Tianpei CAI Menglin WANG Li SUN Zhiqiang LIU Ya LIU School of Computer Science and Technology Donghua University Department of Computer Science and Engineering Shanghai Jiao Tong University Shanghai Key Laboratory of Computing and Systems Shanghai Jiao Tong University Shanghai Key Laboratory of Integrate Administration Technologies for Information Security Shanghai Jiao Tong University Department of Computer Science and Engineering University of Shanghai for Science and Technology

Dear editor,The GIFT cryptosystem was proposed by Banik et al. [1]in CHES 2017. It can be widely applied to protect RFID tags and other low-resource devices. It has an SPN structure with a fixed 128-bit key size and two flexible variants of 64-bit and 128-bit block sizes. In simulations, GIFT achieves good performance and surpasses both SIMON and SKINNY [1]. In 2013, Fuhr et al. [2] proposed a ciphertextonly fault analysis(CFA) of AES for three types of faults:zero-byte fault, zero-nibble fault,

关键词： lightweight cryptosystem GIFT ciphertext-only fault analysis cryptanalysis fault analysis

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Unveiling the Landscape of Machine Learning and Deep Learning Methodologies in Network Security: A Comprehensive Literature Review 2

Unveiling the Landscape of Machine Learning and Deep Learnin...

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2nd International Conference on Cyber Resilience, ICCR 2024

作者： Saeed, Nouf Majid Sultan Eid Ibrahim, Amer Ali, Liaqat Al-Dmour, Nidal A. Mohammed, Abdul Salam Ghazal, Taher M. American University In The Emirates Dubai United Arab Emirates College Of Engineering And Technology University Of Science And Technology Of Fujairah Fujairah United Arab Emirates College Of Engineering Mutah University Department Of Computer Engineering Jordan Skyline University College University City Sharjah Shariah United Arab Emirates Khalifa University Centre For Cyber Physical Systems Computer Science Department United Arab Emirates Center For Cyber Security Faculty Of Information Science And Technology Selangor Bangi43600 Malaysia

ISBN: (纸本)9798350394962

The dynamic nature of cyber threats offers a continual problem in the field of cybersecurity in the context of the expanding internet environment. This study provides an in-depth assessment of the literature on machine learning (ML) and deep learning (DL) methodologies for network analysis for intrusion detection. This review curates, assesses, and distils method-specific findings while considering temporal or thermal correlations. It provides a recognition of the importance of data in ML and DL approaches, and a comprehensive overview of frequently used network datasets in ML/DL applications, as well as the inherent challenges of adopting ML/DL in the cybersecurity field. The study concludes with well-informed recommendations for future areas of research in this critical domine. © 2024 IEEE.

关键词： Intrusion detection

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Selective opening chosen ciphertext security directly from the DDH assumption

Selective opening chosen ciphertext security directly from t...

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6th International Conference on Network and System Security, NSS 2012

作者： Liu, Shengli Zhang, Fangguo Chen, Kefei Dept. of Computer Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China School of Information Science and Technology Sun Yat-sen University Guangzhou 510006 China State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences China Shanghai Key Laboratory of Scalable Computing and Systems Shanghai China

ISBN: (纸本)9783642346002

Chosen-ciphertext security has been well-accepted as a standard security notion for public key encryption. But in a multi-user surrounding, it may not be sufficient, since the adversary may corrupt some users to get the random coins as well as the plaintexts used to generate ciphertexts. The attack is named "selective opening attack". We study how to achieve full-fledged chosen-ciphertext security in selective opening setting directly from the DDH assumption. Our construction is free of chameleon hashing, since tags are created for encryptions in a flexible way to serve the security proof. © 2012 Springer-Verlag.

关键词： Public key cryptography

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Channel-borrowing handoff scheme based on user mobility in CDMA cellular systems

Channel-borrowing handoff scheme based on user mobility in C...

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IEEE International Conference on Communications (ICC)

作者： Dong-Jun Lee Dong-Ho Cho Communications and Information Systems Laboratory Division of Electrical Engineering Department of Electrical Engineering & Computer Science KAIST Taejon South Korea

CDMA cellular systems use soft handoff. Although the capacity of CDMA systems is interference-limited in nature, channel shortages may occur because soft handoff uses several channels simultaneously. To cope with this problem, we propose an improved handoff method which borrows channels from stationary calls participating in soft handoff and allocates the borrowed channels to handoff requests by moving calls when a channel shortage occurs. Borrowing from stationary calls is possible because these calls do not undergo fast-fading and do not require receiver diversity. The proposed method is designed to avoid increased interference resulting from channel-borrowing. The proposed channel-borrowing handoff scheme is analyzed in a situation involving both moving and stationary calls. A comparison is made between the performances of the typical IS-95-based handoff scheme and the proposed scheme. Numerical results show that the proposed scheme is better than the IS-95 scheme in view of the handoff refused probability, the handoff queuing delay.

关键词： Multiaccess communication Interference information systems Laboratories computer science Design methodology Delay Frequency division multiaccess Time division multiple access Tail

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A Game Theoretic Investigation for High Interaction Honeypots

A Game Theoretic Investigation for High Interaction Honeypot...

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IEEE International Conference on Communications

作者： Osama Hayatle Hadi Otrok Amr Youssef Concordia Institute for Information Systems Engineering Concordia University Electrical and Computer Engineering Department Khalifa University of Science Technology & Research

ISBN: (纸本)9781457720529

Honeypots are traps designed to resemble easy-to-compromise computer systems in order to deceive botmasters. Such security traps help security professionals to collect valuable information about botmasters' techniques and true identities. Depending on the complexity of services provided by honeypots, botmasters might be able to detect these traps by performing a series of tests. In particular, to detect honeypots, botmasters can command compromised machines to perform specific actions such as targeting sensor machines controlled by them. If honeypots were designed to completely ignore these commands, then they can easily be detected by the botmasters. On the other hand, full participation by honeypots in such activities has its associated costs and may lead to legal liabilities. This raises the need for finding the optimal response strategy needed by the honeypot in order to prolong its stay within the botnet without sacrificing liability. In this paper, we address the problem of honeypot detection by botmasters. In particular, we present a Bayesian game theoretic framework that models the interaction between honeypots and botmasters as a non-zero-sum noncooperative game with uncertainty. The game solution illustrates the optimal response available for both players. Simulation results are conducted to show the botmasters' behavior update and possible interactions between the game players. The obtained results can be utilized by security professionals to determine their best response to these kind of probes by botmasters.

关键词： Honeypots Anti-Honeypot Technology Botnets and Game Theory

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Wake structure around moving elastic airfoils with projections and their characteristics of dynamic forces by fluid structure interaction simulation

Wake structure around moving elastic airfoils with projectio...

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ASME-JSME-KSME 2011 Joint Fluids engineering Conference, AJK 2011

作者： Aphaiwong, Junchangpood Nagata, Tetsushi Fuchiwaki, Masaki Tanaka, Kazuhiro Graduate School of Computer Science and Systems Engineering Kyushu Institute of Technology 680-4 Kawazu Iizuka-city Fukuoka 820-8502 Japan Department of Mechanical Information Science and Technology Kyushu Institute of Technology 680-4 Kawazu Iizuka-city Fukuoka 820-8502 Japan

ISBN: (纸本)9780791844403

The flow around an elastic body is treated as a fluid-structure interaction (FSI), numerous fluid-structure coupled problems have been performed. Recently, two-way coupled analysis, which considers the fluid-structure interaction, has been performed extensively. In the present paper, we simulate a flow field around an elastic heaving flat plate with a variable surface shape and various Young's moduli and perform bidirectional coupling analysis using ANSYS 12.1/ANSYS-CFX 12.1. In the case of the results without projection, the vorticity that grows along the plate surface, rolled up from the trailing edge, and developed in the wake are dependent on Strouhal number, independent of the Young's modulus. However, in the case of the results with the projections, the vortex behaviors are different with the Young's modulus. At E = 3.53 [MPa], the projections effect on the vortex behavior and the dynamic thrust exhibit approximately the same tendency with or without a projection. On the other hand, at E = 10.0 [MPa], the projection effect has an impact on the vortex behavior and the dynamic thrust. The vorticity and the dynamic thrust of E = 10.0 [MPa] become smaller than that of E = 3.53 [MPa] because of strong effects from the projections of the heaving elastic plate. Copyright © 2011 by ASME.

关键词： Vorticity

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Towards the Automatic Reconstruction of Dendritic Trees using Particle Filters

Towards the Automatic Reconstruction of Dendritic Trees usin...

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IEEE Nonlinear Statistical Signal Processing Workshop,NSSPW

作者： D.R. Myatt S.J. Nasuto S.J. Maybank School of Systems Engineering Department of Cybernetics University of Reading UK Birkbeck School of Computer Science and Information Systems University of London UK

The 3D reconstruction of a Golgi-stained dendritic tree from a serial stack of images captured with a transmitted light bright-field microscope is investigated. Modifications to the boot-strap filter are discussed such that the tree structure may be estimated recursively as a series of connected segments. The tracking performance of the bootstrap particle filter is compared against Differential Evolution, an evolutionary global optimisation method, both in terms of robustness and accuracy. It is found that the particle filtering approach is significantly more robust and accurate for the data considered.

关键词： Particle filters Image reconstruction Robustness Microscopy Tree data structures Recursive estimation Image segmentation Particle tracking Optimization methods Filtering

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Enhancing service quality through Service Level Agreement (SLA) full implementation

Enhancing service quality through Service Level Agreement (S...

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International Conference on science in information Technology (ICSITech)

作者： Rodziah binti Atan Department of Software Engineering and Information Systems Faculty of Computer Science and Information Technology Universiti Putra Malaysia 43400 Serdang Selangor MALAYSIA

ISBN: (纸本)9781509017225

Various SLA monitoring systems are proposed by different features and abilities to evaluate the agreed SLA. The current SLA monitoring systems in cloud computing for its structural, behavioral characteristics and situation are also in place. The systematic reviews of a well-known methods and approaches shows a significant numbers of researches been done in this area. Based on the number of effort and researches, the quality of services should proportionately increase alongside them. We look this matter from the perspectives of enforcement, that evident the stand of quality of services. Service Level Agreement (SLA) enforcement impact measures is a potential research area to be explored. Assumptions that this study is making are, SLA management will become better by a firm enforcement, where every customers are responsible to launch report of bugs or mischief of services such as unsatisfactory quality or service unavailability to a collection pool, and the provider will react immediately to the complaints so that the total downtime not exceeding the SLA value, with efficient enforcement. This study establishes fundamental theory to measure enforcement impact to SLA monitoring and management. We proposed eight activity phases from formulating until analyzing and decision formation. Descriptive statistics is utilized to analyze the extracted data. The SLA validation detection is the most frequent purpose of SLA monitoring systems in cloud by 58% and throughput is checked as an attribute target by 28%. The self-monitoring SLA, self-healing system, hierarchical structure are recognized points of SLA monitoring systems which need improvement before the enforcement could be based upon.

关键词： quality of service Service Level Agreement enforcement monitoring cloud computing

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