다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

Internet of Things security and forensics: Challenges and opportunities

In today's ecosystem of energy management, the contribution of Internet of Things (IoT) to smart grids has acquired immense potential due to its multi-faceted advantages in various fields. IoT paves a way to associate and virtually control everything in almost every domain of society. Conversely, the smart grid framework attracted the attention of the universal research community and the idea of merging IoT with smart grid together demonstrates enormous growth potential. This review paper highlights the most significant research works that focus on applying IoT to smart grids. This work also addresses many innovative approaches used in IoT and smart grids along with their respective applications in various fields. The objective of this work is to benefit scientists and new entrants in the field of IoT and smart grids opens up awareness for new interdisciplinary research.

Future effectual role of energy delivery: A comprehensive review of Internet of Things and smart grid

In this survey, we review the existing game-theoretic approaches for cyber security and privacy issues, categorizing their application into two classes, security and privacy. To show how game theory is utilized in cyberspace security and privacy, we select research regarding three main applications: cyber-physical security, communication security, and privacy. We present game models, features, and solutions of the selected works and describe their advantages and limitations from design to implementation of the defense mechanisms. We also identify some emerging trends and topics for future research. This survey not only demonstrates how to employ game-theoretic approaches to security and privacy but also encourages researchers to employ game theory to establish a comprehensive understanding of emerging security and privacy problems in cyberspace and potential solutions.

Game Theory for Cyber Security and Privacy

The Internet of Things (IoT) is an emerging paradigm branded by heterogeneous technologies composed of smart ubiquitous objects that are seamlessly connected to the Internet. These objects are often deployed in open environments to provide innovative services in various application domains such as smart cities, smart health, and smart communities. These IoT devices produce a massive amount of confidentiality and security-sensitive data. Thus, security of these devices is very important in order to ensure the safety and effectiveness of the system. In this paper, a decentralized authentication and access control mechanism is proposed for lightweight IoT devices and is applicable to a large number of scenarios. The mechanism is based on the technology of the fog computing and the concept of the public blockchain. The results gained from the experiments demonstrate a superior performance of the proposed mechanism when compared to a state-of-the-art blockchain-based authentication technique.

A decentralized lightweight blockchain-based authentication mechanism for IoT systems

Privacy-preserving protocols for secure and reliable data aggregation in IoT-enabled Smart Metering systems

The authors introduce the notion of a ‘social secret sharing scheme’, in which shares are allocated based on a player's reputation and the way he/she interacts with other participants. During the social tuning phase, weights of players are adjusted such that participants who cooperate will end up with more shares than those who defect. Alternatively, newcomers are able to be enrolled in the scheme while corrupted players are disenrolled immediately. In other words, this scheme proactively renews shares at each cycle without changing the secret, and allows trusted participants to gain more authority. The motivation is that, in real-world applications, components of a secure scheme may have different levels of importance (i.e. the number of shares a player has) as well as reputation (i.e. cooperation with other players for the share renewal or secret recovery). Therefore a good construction should balance these two factors, respectively. In the proposed schemes, both the passive and active mobile adversaries are considered in an unconditionally secure setting.

Unconditionally secure social secret sharing scheme

Rational secret sharing was proposed by Halpern and Teague in [8]. The authors show that, in a setting with rational players, secret sharing and multiparty computation are only possible if the actual secret reconstruction round remains unknown to the players. All the subsequent works use a similar approach with different assumptions.

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Socio-Rational Secret Sharing as a New Direction in Rational Cryptography

This paper aims at the trust calculation in social networks by addressing some major issues: Firstly, the paper evaluates a specific trust function and its behaviors, and then it focuses on the modification of that trust function by considering diverse scenarios After that, the paper proposes a new approach with a specific functionality The main goals are to support good agents strongly, block bad ones and create opportunities for newcomers or agents who want to show their merit in our society although we can not judge them Finally, a mathematical discussion by a new trust function is provided with ultimate results

A New Approach for the Trust Calculation in Social Networks

Cryptographic architectures provide different security properties to sensitive usage models. However, unless reliability of architectures is guaranteed, such security properties can be undermined through natural or malicious faults. In this paper, two underlying block ciphers which can be used in authenticated encryption algorithms are considered, i.e., light encryption device and high security and lightweight block ciphers. The former is of the Advanced Encryption Standard type and has been considered area-efficient, while the latter constitutes a Feistel network structure and is suitable for low-complexity and low-power embedded security applications. In this paper, we propose efficient error detection architectures including variants of recomputing with encoded operands and signature-based schemes to detect both transient and permanent faults. Authenticated encryption is applied in cryptography to provide confidentiality, integrity, and authenticity simultaneously to the message sent in a communication channel. In this paper, we show that the proposed schemes are applicable to the case study of simple lightweight CFB for providing authenticated encryption with associated data. The error simulations are performed using Xilinx Integrated Synthesis Environment tool and the results are benchmarked for the Xilinx FPGA family Virtex-7 to assess the reliability capability and efficiency of the proposed architectures.

https://scholarworks.rit.edu/cgi/viewcontent.cgi?article=10425&context=theses

Mehrdad Nojoumian

Papers

Privacy-preserving protocols for secure and reliable data aggregation in IoT-enabled Smart Metering systems

Unconditionally secure social secret sharing scheme

Socio-Rational Secret Sharing as a New Direction in Rational Cryptography

A New Approach for the Trust Calculation in Social Networks

Reliable Hardware Architectures for Cryptographic Block Ciphers LED and HIGHT