Survey on blockchain based smart contracts: Applications, opportunities and challenges

Hewa, Tharaka; Ylianttila, Mika; Liyanage, Madhusanka

doi:10.1016/j.jnca.2020.102857

Cited by 274 publications

(140 citation statements)

References 167 publications

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“…Particularly, blockchain can play a significant role in IoT domain [203]. Several blockchain-based IoT platforms were designed not only to enable secure data sharing, secure authentication, high privacy, but also to provide automated service verification and migration [204]. On the other hand, several research works focused on highlighting the usage of blockchain for cloud computing systems to enable security, privacy and automation [205].…”

Section: ) Blockchainmentioning

confidence: 99%

Survey on Multi-Access Edge Computing Security and Privacy

Ranaweera

Jurcut

Liyanage

2021

IEEE Commun. Surv. Tutorials

Self Cite

206

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The European Telecommunications Standards Institute (ETSI) has introduced the paradigm of Multi-Access Edge Computing (MEC) to enable efficient and fast data processing in mobile networks. Among other technological requirements, security and privacy are significant factors in the realization of MEC deployments. In this paper, we analyse the security and privacy of the MEC system. We introduce a thorough investigation of the identification and the analysis of threat vectors in the ETSI standardized MEC architecture. Furthermore, we analyse the vulnerabilities leading to the identified threat vectors and propose potential security solutions to overcome these vulnerabilities. The privacy issues of MEC are also highlighted, and clear objectives for preserving privacy are defined. Finally, we present future directives to enhance the security and privacy of MEC services.

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Section: ) Blockchainmentioning

confidence: 99%

Survey on Multi-Access Edge Computing Security and Privacy

Ranaweera

Jurcut

Liyanage

2021

IEEE Commun. Surv. Tutorials

Self Cite

206

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“…It consists of a linked sequence of blocks, holding timestamped transactions that are secured by public-key cryptography and verified by the network community". Once data is added to the blockchain, it cannot be altered, and a blockchain is turning into a permanent record [27].…”

Section: Blockchainmentioning

confidence: 99%

“…Once a record of transactions is added to a block on the ledger, it cannot be altered or modified. Since each block contains a cryptographic hash of the original data, this hash is unique and each block contains the hash the previous block, and transactions are stored in different nodes in the distributed network, any attempt to change the block content is not allowed [27]. One of the disadvantages of the immutability feature is that it is also impossible to modify data that might be erroneous before entering the blockchain [32].…”

Section: Immutabilitymentioning

confidence: 99%

“…This supports efficient and accurate record keeping, but it may interfere with privacy to some extent [34]. Blockchain has the potential to add transparency not only to financial transactions but also to business processes [27].…”

Section: Transparencymentioning

confidence: 99%

“…A Private Blockchain is also called a permissioned blockchain (e.g., Hyperledgerd) [28]. It allows to select which nodes to be operated and view the transactions on the ledger, as well as who may transact with it since the privacy is improved [27]. That's mean the Participants require permission to join the networks [37].…”

Section: Private Blockchainsmentioning

confidence: 99%

See 2 more Smart Citations

The Literature Review of Blockchain Adoption

Almekhlafi

Al-Shaibany

2021

AJRCoS

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Blockchain is an emerging technology that depends on distribution, decentralization, and encryption. Recently, it has gained wide interest in various fields of studies. Several considerable research on blockchain adoption has appeared in international journals across different disciplines, however, a review of literature on the adoption of blockchain remains rare. This study aimed to provide a comprehensive literature review of the current blockchain adoption studies that use individual adoption models or theories. This paper included the papers that are published in the 7 Scopus database from 2017-2021. Studies were analyzed to determine the adoption models or theories that are used, industry, country, methodology, and identify the most important influencing factors that drive the user to accept the adoption of blockchain technology. The results showed that there are still limitations in adoption studies in various fields such as health and education however, the field of supply chain management is one of the areas that received the most attention in the studies. Common studies relied on the Technology Acceptance Model (TAM) model as well as the Unified Theory of Acceptance and Use of Technology (UTAUT). Moreover, perceived ease of use (PEOU), perceived usefulness (PU) are considered the most important factors affecting the intention of users in adopting blockchain technology in different fields. The research findings have implications on blockchain adoption research. In terms of theory, the findings provide a guideline for the other researchers to put their own research in a better context and thus contribute to understanding the relevant blockchain adoption issues that require further investigation.

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Security and Privacy of 6G

2022

6G Frontiers

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Survey on blockchain based smart contracts: Applications, opportunities and challenges

Cited by 274 publications

References 167 publications

Survey on Multi-Access Edge Computing Security and Privacy

Survey on Multi-Access Edge Computing Security and Privacy

The Literature Review of Blockchain Adoption

Security and Privacy of 6G

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