Enhancing Privacy through “Smart Contract” using Blockchain-based Dynamic Access Control

Gupta, Richa; Shukla, Vinod Kumar; Rao, Sindhu Suresh; Anwar, Shaista; Sharma, Purushottam; Bathla, Ruchika

doi:10.1109/iccakm46823.2020.9051521

Cited by 25 publications

(4 citation statements)

References 11 publications

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“…technology shows great potential to increase the security of IT processes that improve processes carried out in a modern, smart city (Singh et al, 2020). Blockchain-based systems are able to ensure greater data security, privacy of their users and enable process automation using smart contracts (Gupta et al, 2020). Applications of blockchain technology can be found in many areas of city management, such as: food supply chains, tourism industry, intelligent healthcare, telecommunications industry, energy management, and intelligent transport systems (Ullah et al, 2023).…”

Section: Blockchain Technology Applications In the Context Of Smart Citymentioning

confidence: 99%

Untitled

2024

SPSUTOM

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The originality of the conducted research lies in a holistic approach to analysing entrepreneurs' satisfaction, identifying statistical relationships between satisfaction and diverse economic behaviours, and exploring the role of emotions in making business decisions. This collectively provides a new perspective on the behavioral finance of businesses. Literature reviewEmotions play a significant role in the process of making business decisions. Despite the common tendency to focus on data and facts analysis, it is emotions, both conscious and hidden, that influence the shaping of strategies, the selection of business partners, and the willingness to take risks. Entrepreneurs, considering their personal emotions, introduce a subjective element into the decision-making process, which can lead to both successes and failures.The origin of the word "emotion" derives from the Latin verb "motere," meaning "to move".However, to fully understand the meaning of this term, it is worth noting the prefix "e-", suggesting something more than just movement or stirringit may indicate an additional, extended, or surpassing basic activity. This prefix indicates that emotions have a tendency to act or react (Goleman, 1997, p. 27). Emotions are not only associated with experiencing specific mental states but also with a tendency to evoke particular behaviors or reactions. They are deeply embedded within a person and often guide their actions and influence the decisions made.According to D. Goleman, emotions can be defined as a complex blend of feelings and thoughts that are associated with specific psychological states and biological reactions of the organism. These emotional states, along with predispositions to action, constitute an integral part of the human heritage passed down to us by evolution (Goleman, 1997, p. 442). D. Goleman asserts that emotions essentially serve as stimuli shaping an individual's readiness for action. These are rapid life-saving or life-sustaining plans embedded in our psyche by evolutionary history. Emotional reactions triggered by various situations, such as fear, joy, anger, or sadness, not only influence human thoughts and feelings but also activate instincts and prepare individuals to take appropriate actions at the given moment. Therefore, comprehending emotions is crucial for a better understanding of human behaviour and responses in various life situations.Another renowned psychologist, R. Lazarus, proposes a more intricate approach to emotions. He contends that emotions result from an individual's appraisal of a situation, rather than being merely reactions to specific stimuli. According to his theory, emotions are more

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Section: Blockchain Technology Applications In the Context Of Smart Citymentioning

confidence: 99%

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2024

SPSUTOM

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“…Their work ensures that data remains accessible while maintaining user privacy. Gupta et al (2020) [15] emphasized the role of smart contracts in enhancing privacy. Their work introduces a dynamic access control mechanism using blockchain, ensuring that only authorized entities can access specific data.…”

Section: Literature Reviewmentioning

confidence: 99%

A Blockchain-based Framework for Enhancing Privacy and Security in Online Transactions

VatankhahBarenji,

Zhang,

Bhavsingh

2023

IJCERT

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In the contemporary digital age, the assurance of privacy and security in online transactions remains a paramount concern. This research meticulously introduces and investigates a ground-breaking blockchain-based framework, specifically tailored to address and enhance these aspects. The principal objective of this study is to offer a comprehensive solution to a spectrum of challenges currently prevalent in existing transaction systems. Traditional systems often grapple with a host of issues, including vulnerability to security breaches, inadequate privacy safeguards, latency in transaction processing, and challenges in scalability. These systems, often centralized, present single points of failure and frequently fall short in offering robust privacy-preserving mechanisms. To mitigate these challenges and bridge the gaps identified in the current landscape, the proposed framework ingeniously amalgamates advanced cryptographic techniques, decentralized protocols, and smart contracts. The design ensures a robust and transparent mechanism that eliminates single points of failure, thereby significantly enhancing security. The methodology adopted in this research involves a thorough evaluation and assessment of the proposed framework against a series of key metrics. These include security robustness, privacy assurance, transaction throughput, latency, and cost-effectiveness, among others. The findings from this study underscore several noteworthy achievements of the proposed framework. It exhibits a remarkable increase in transaction throughput, processing at a rate that is approximately double compared to existing systems. Additionally, the latency observed in the transaction confirmation process is significantly reduced, ensuring swift and efficient transactions. The framework also demonstrates a robust resistance to common security threats and attacks. Furthermore, the implementation ensures user anonymity and privacy are upheld through cryptographic techniques, thereby addressing privacy concerns prevalent in current systems. Optimal resource utilization is maintained, ensuring the framework is not only secure and private but also efficient. In conclusion, this research presents a compelling case for the adoption of the proposed blockchain-based framework as a potent solution to the myriad of issues identified in existing transaction systems. The study contributes significantly to the discourse on secure and privacy-preserving online transactions, presenting a framework that is not only theoretically sound but also practically viable.

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“…Key Escrow Incentive and Penalty based consensus mechanism for consortium blockchain [19] Critical Authentication Smart contract driven access control, Blockchain driven access control, Blockchain driven role based access control [31,61,64] in centralized systems since traditional access control systems are all centralized in nature. The relevant studies used various technologies to tackle this problem, such as distributed access control, interplanetary file system (IPFS), attribute-based access control with blockchain technology, smart contract enabled capability-based access control, Shamir's secret sharing scheme and many more.…”

Section: B Rq2: What Were the Shortcomings With Traditional Access Co...mentioning

confidence: 99%

Blockchain Driven Access Control Mechanisms, Models and Frameworks: A Systematic Literature Review

Dar¹,

Baba

Lone

et al. 2022

JISCR

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Access control or authorization is referred to as the confinement of specific actions of an entity, thereby allowing them to be performed as per certain rules. Blockchain-driven access control mechanisms gained considerable attention directly after applications beyond the premise of cryptocurrency were found. However, there are no systematic efforts to analyze existing empirical evidence. To this end, we aim to synthesize litera- ture to understand the state-of-the-art blockchain driven access control mechanisms with respect to underlying platforms, utilized blockchain properties, nature of the mod- els and associated testbeds and tools. We conducted the review in a systematic way. Meta analysis and thematic synthesis were performed on the findings from relevant primary studies, in order to answer the framed research questions in perspective. We identified 76 relevant primary studies that passed the quality assessment. The problems targeted by relevant studies were single point of failure, security, and privacy, etc. The meta-analysis of the primary studies suggests the use of different blockchain platforms along with several application domains where different blockchain proprieties were utilized. In this paper, we present a systematic literature review of blockchain driven access control systems. In hindsight, we present a taxonomy of blockchain-driven access control systems to better understand the immense implications of this field spanning various application domains

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Enhancing Privacy through “Smart Contract” using Blockchain-based Dynamic Access Control

Cited by 25 publications

References 11 publications

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A Blockchain-based Framework for Enhancing Privacy and Security in Online Transactions

Blockchain Driven Access Control Mechanisms, Models and Frameworks: A Systematic Literature Review

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