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检索条件"任意字段=13th ACM Symposium on Access Control Models and Technologies"

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A data access model for privacy-preserving cloud-iot architectures 20

A data access model for privacy-preserving cloud-iot archite...

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25th acm symposium on access control models and technologies, SacmAT 2020

作者： Fernández, Maribel Tapia, Alex Franch Jaimunk, Jenjira Chamorro, Manuel Martinez thuraisingham, Bhavani King's College London London United Kingdom University of Texas at Dallas Dallas United States

ISBN: (纸本)9781450375689

We propose a novel data collection and data sharing model for cloud-IoT architectures with an emphasis on data privacy. this model has been implemented in Privasee, an open source platform for privacy-aware web-application development, which provides a plug-in module to support IoT application development. Privasee uses a cloud-IoT architecture called DataBank. We provide examples and discuss future extensions. © 2020 acm.

关键词： access control

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Poster: IoT SENTINEL - An ABAC Approach Against Cyber-Warfare in Organizations 20

Poster: IoT SENTINEL - An ABAC Approach Against Cyber-Warfar...

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25th acm symposium on access control models and technologies (SacmAT)

作者： Bhatt, Paras Bhatt, Smriti Ko, Myung Univ Texas San Antonio Dept Informat Syst & Cyber Secur San Antonio TX 78249 USA Univ Texas San Antonio Dept Comp & Cyber Secur San Antonio TX USA

ISBN: (纸本)9781450375689

Recently, Internet of things (IoT) devices and applications are becoming increasingly popular among users in various IoT domains, such as Wearable IoT, Smart Cities, Smart Home, and Smart Industry. With a range of IoT devices, cyber attack surface has hugely expanded from traditional user workstations to small autonomous devices connected to the Internet. In today's connected world, every user owns multiple connected smart devices which seamlessly connect to their organization's network. therefore, secure and fine-grained access control policies need to be implemented at the organizational level to defend against such attacks. In this paper, we propose an Attribute-Based access control (ABAC) approach to defend against cyber attacks in the context of an organization environment which are launched through compromised IoT devices owned by various legitimate users. For example, a wearable IoT device of an employee of an organization which can connect to the organization's network and compromise the whole network and lack of secure access control mechanism will enable IoT Warfare in the future. therefore, secure and fine-grained ABAC access control mechanisms and policies need to be employed for access control and authorization requirements of IoT devices.

关键词： Attributes Attribute-Based access control Cyber-Warfare IoT Warfare

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Benchmarking UAQ Solvers 20

Benchmarking UAQ Solvers

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25th acm symposium on access control models and technologies (SacmAT)

作者： Armando, Alessandro Gazzarata, Giorgia Turkmen, Fatih Univ Genoa DIBRIS Genoa Italy Univ Groningen Groningen Netherlands

ISBN: (纸本)9781450375689

the User Authorization Query (UAQ) Problem is key for RBAC systems that aim to offer permission level user-system interaction, where the system automatically determines the roles to activate in order to enable the requested permissions. Finding a solution to a UAQ problem amounts to determining an optimum set of roles to activate in a given session so to obtain some permissions while satisfying a collection of authorization constraints, most notably Dynamic Mutually-Exclusive Roles (DMER) constraints. Although the UAQ Problem is NP-hard, a number of techniques to solve the UAQ problem have been put forward along with encouraging, albeit inconclusive, experimental results. We propose a methodology for designing parametric benchmarks for the UAQ problem and make a novel suite of parametric benchmarks publicly available that allows for the systematic assessment of UAQ solvers over a number of relevant dimensions. By running three prominent UAQ solvers against our benchmarks, we provide a very comprehensive analysis showing (i) the shortcomings of currently available benchmarks, (ii) the adequacy of the proposed methodology and (iii) that the reduction to PMaxSAT is currently the most effective approach to tackling the UAQ problem.

关键词： Role-based access control User Authorization Query Problem Boolean Satisfiability

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Norm-based access control 20

Norm-based Access Control

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25th acm symposium on access control models and technologies (SacmAT)

作者： Ulusoy, Onuralp Yolum, Pinar Univ Utrecht Utrecht Netherlands

ISBN: (纸本)9781450375689

Collaborative systems, such as online social networks or Internet of things, host vast amounts of content that is created and manipulated by multiple users. Co-edited documents or group pictures are prime examples of such co-owned content. Respecting privacy of users in collaborative systems is difficult because the co-owners of the shared content can have conflicting access policies about the content. To address this problem, recent approaches employ group decision making techniques, such as auctions. With these approaches, when a content is to be shared, all co-owners express their privacy preferences through the mechanism (e.g., by bidding) and the group decision mechanism reaches a decision to enable or deny access to the content. However, such mechanisms have to be carried out per content, making them impractical for most realistic settings. We argue that rather than employing a group decision mechanism on each content separately, it is more practical to watch for privacy norms that emerge in systems and make decisions using these norms, when possible. this paper borrows ideas from philosophy to represent privacy norms and develops algorithms to compute them in collaborative systems. We show that when privacy norms are identified correctly, they can enable collaborative systems respect users' privacy as well as decrease the need to engage in a group decision mechanism considerably.

关键词： Privacy Multiagent systems Norms

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Interference Avoidance Based Multiplex Channel Scheme in High-density C-V2X 13

Interference Avoidance Based Multiplex Channel Scheme in Hig...

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13th International Conference on Wireless Communications and Signal Processing, WCSP 2021

作者： Wang, Jiao Zhang, Shibing Qiu, Gongan Bao, Zhihua Nantong University School of Information Science and Technology Nantong China Nantong University School of Information Science and Technology Nantong Research Institute for Advanced Communication Technologies Nantong China

ISBN: (纸本)9781665407854

For disseminating safety warning messages, the terminal on board needs to multiplex the cellular channel to establish the temporary links in high-density C-V2X. then, the potential co-channel interference will degrade the performance metrics in the high-density scenarios. In this paper, the terminal on board detects the channel status in single slot early using the energy detection method for multiplexing the channel with interference avoidance. Based on the detection result, the base station can estimate the channel idle status in all slots using the hidden Markov model. And the channel list with idle rate is created according to the defined interference avoidance index. the terminal can multiplex the channel with maximum interference avoidance value as the connection link between the vehicles. Finally, the performance metrics which come from the co-channel interference, the blocking rate of H2H links and the outage probability of V2V links, are derived and analyzed in theory. Simulation results show that the proposed scheme has the minimum interference impact compared with the competition access scheme and interference control scheme. © 2021 IEEE.

关键词： Hidden Markov models

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FTM Implementation and Ranging Performance Characterization for Indoor Localization

FTM Implementation and Ranging Performance Characterization ...

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IEEE Global Conference on Consumer Electronics (GCCE)

作者： Rei Hirata Atsushi Koizumi Hiroshi Oguma Naotaka Sakaguchi Takenori Sumi Yukimasa Nagai Department of Control Information System Enginering NIT Toyama College Toyama Japan Information Technology R&D Center Mitsubishi Electric Corporation Kanagawa Japan

ISBN: (数字)9798350355079

ISBN: (纸本)9798350355086

Indoor positioning technologies for IoT sensing are attracting attention. We are currently exploring standard indoor positioning methods using IEEE 802.11 / Wi-Fi. In this paper, we utilize the IEEE802.11-2016 FTM (Fine Timing Measurement) protocol, which enables to calculate distances between devices and access points (APs). the ranging accuracy of FTM, however, varies depending on multipath propagation of wireless signals and device-specific factors. therefore, we implemented FTM on two models, Google Pixel4 and Zenfone9, and conducted experiment studies in the gymnasium and corridor of our school to evaluate position detection accuracy. In the gymnasium, the average error was 1.42 m for Zenfone9, while 1.07 m for Pixel4. In the corridor, the average error was 0.66m for Zenfone9, whereas 2.47 m for Pixel4.

关键词： Wireless communication Location awareness Wireless sensor networks Accuracy Protocols Distance measurement Sensors Timing Wireless fidelity Standards

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Emotion-Driven Intelligent Product Design Based on Deep Learning

Emotion-Driven Intelligent Product Design Based on Deep Lear...

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International Conference on Communication Systems and Network technologies (CSNT)

作者： Mengmeng Zhang Polus International College Chengdu China

ISBN: (数字)9798350305463

ISBN: (纸本)9798350305470

this research investigates the integrated application of deep learning technologies in the field of emotion-driven interior soft decoration product design. through comprehensive online surveys conducted with over 1000 participants and coupled with biometric feedback from 300 individuals, this study offers a multi-faceted analysis of user emotions during interactions with interior soft decoration products. the employment of a finely-tuned Convolutional Neural Network (CNN) model facilitated the extraction of key emotional design elements, indicating that around 520 of the surveyed participants were satisfied with certain interior soft decoration designs, while a minority of 80 expressed dissatisfaction. Moreover, the biometric data revealed a significant correlation between increased heart rates (exceeding 85 beats per minute) and intense emotional responses. the integration of biometric and questionnaire textual data suggested that users indeed experienced strong positive emotions in interactions with specific soft decoration products. the study also addresses potential challenges, including possible biases in data collection and the inherent limitations of deep learning models. the findings underscore the significant potential of deep learning in capturing the complex patterns of user emotions, providing valuable insights for the future design of emotion-centric interior soft decoration products. through this interdisciplinary approach, the study charts a promising direction for the advancement of artistic disciplines such as interior design and soft decoration product design, emphasizing the importance of understanding and incorporating user emotion in the design process.

关键词： Deep learning Surveys Knowledge engineering Heart rate Biometrics (access control) Biological system modeling Neural networks

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ABAC-CC: Attribute-Based access control and Communication control for Internet of things 20

ABAC-CC: Attribute-Based Access Control and Communication Co...

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25th acm symposium on access control models and technologies (SacmAT)

作者： Bhatt, Smriti Sandhu, Ravi Texas A&M Univ Dept Comp & Cyber Secur San Antonio TX 78224 USA Texas A&M Univ Inst Cyber Secur San Antonio TX USA Texas A&M Univ CREST C SPECC Dept Comp Sci San Antonio TX USA

ISBN: (纸本)9781450375689

Internet of things (IoT) is revolutionizing the capabilities of the Internet with billions of connected devices in the cyberspace. these devices are commonly referred to as smart things enabling smart environments, such as Smart Home, Smart Health, Smart Transportation, and overall Smart Communities, together with key enabling technologies like Cloud Computing, Artificial Intelligence (AI) and Machine Learning (ML). Security and privacy are major concerns for today's diverse autonomous IoT ecosystem. Autonomous things and a large amount of data associated with things have fueled significant research in IoT access control and privacy in both academia and industry. To enable futuristic IoT with sustainable growth, dynamic access and communication control framework that adequately addresses security and privacy issues in IoT is inevitable. In this paper, we analyze the access and communication control requirements in Cloud-Enabled IoT (CE-IoT) and propose an attribute-based framework for access control and communication control, known as ABAC-CC, to secure accesses and communications (data flow) between various entities in the IoT architecture. We also introduce a novel Attribute-Based Communication control (ABCC) model, which focuses on securing communications and data flow in IoT and enables users to define privacy policies using attributes of various entities. Furthermore, we analyze the applicability of ABAC-CC in specific IoT application domains, and finally, we present future research directions in the context of Cloud and Edge computing enabled IoT platforms.

关键词： Internet of things Attributes Message Attributes Cloud-Enabled IoT Communication control Attribute-Based Communication control

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Session details: Session 2: access control models 21

Session details: Session 2: Access Control Models

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Proceedings of the 26th acm symposium on access control models and technologies

作者： Eleonora Losiouk University of Padova

No abstract available.

ISBN: (纸本)9781450383653

No abstract available.

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Analysis of access control Enforcement in Android 20

Analysis of Access Control Enforcement in Android

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25th acm symposium on access control models and technologies (SacmAT)

作者： Enck, William North Carolina State Univ Raleigh NC 27695 USA

ISBN: (纸本)9781450375689

Over the past decade, the Android operating system install-base has proliferated to billions of devices, rivaling Microsoft Windows as a top computing platform. One of the most attractive aspects of Android is its vast collection of applications, available from application stores such as Google's Play Store. Developers have been drawn to Android due to its semantically-rich runtime APIs, which simplify the creation of third-party applications. Many of these APIs provide access to security- and privacy-sensitive information and resources such as the device's geographic location, audio recorded from the device's microphone, and the ability to send and receive SMS messages. In providing these APIs to third-party applications, the Android OS has implicitly taken responsibility for their protection, increasing its access control burden. As a result, current versions of Android have thousands of manually placed access control checks throughout the platform. the goal of this talk is to motivate the need for and utility of semi-automated tools to analyze and validate the access control checks that occur within Android's system code. the challenges are two-fold. First, analysis of Android's middleware code is more challenging than that of third-party applications, which has been studied in-depth over the past decade [3-5]. the code spans hundreds of system services, which are implemented in a combination of Java, C++, and C. the system services also have heavy inter-dependencies with one another, frequently invoking entry points in each other using Android's Binder inter-process communication (IPC) framework within the Linux kernel. Second, identifying what is an access control check is nontrivial. While there are well-known checks based on user-authorized permissions and Linux-layer user and group identifiers, system services also use an array of different service-specific checks that must be captured and modeled to assess the correctness of access control enforcement. In t

关键词： Android security access control static program analysis

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