A Privacy-Protecting Data-Exchange Wallet with Ownership- and Monetization Capabilities

Norta, Alex; Hawthorne, Daniel; Engel, Serafin L.

doi:10.1109/ijcnn.2018.8489551

Cited by 14 publications

(14 citation statements)

References 11 publications

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“…We observe that all included papers concerning the latter category were published only after 2015. Nine [9,10,19,29,33,35,46,47,59] of those 12 papers were, in fact, published after April 2016, which is when the GDPR was adopted. We therefore hypothesize that this increase in research for generally applicable e-consent implementations is caused by the introduction of the GDPR, which introduced stricter regulations for such applications.…”

Section: Methodsmentioning

confidence: 99%

“…In situations where trust is lacking (which is often the case in online environments), including a third party may not be an option. Several of the proposed solutions [10,35,37,47,50,59] therefore rely on a blockchain to provide transparent and verifiable audit logs.…”

Section: Non-repudiationmentioning

confidence: 99%

“…Most of the blockchain solutions are based on either Ethereum [35,47] or Hyperledger Fabric [10,33,50,59]. Both of these platforms describe protocols for integration and define programming languages in which smart contracts should be written.…”

Section: Other Non-functional Requirementsmentioning

confidence: 99%

“…Usability. Several of the identified papers [10,47,50,59, 62] mention usability challenges. Although not the main focus of this article, as we did not consider UI-related papers, new usability challenges are arising for blockchain-based solutions, as they require a major shift in user behavior [47].…”

Section: Other Non-functional Requirementsmentioning

confidence: 99%

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Security and Privacy Requirements for Electronic Consent

Verreydt

Yskout

Joosen

2021

ACM Trans. Comput. Healthcare

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Electronic consent (e-consent) has the potential to solve many paper-based consent approaches. Existing approaches, however, face challenges regarding privacy and security. This literature review aims to provide an overview of privacy and security challenges and requirements proposed by papers discussing e-consent implementations, as well as the manner in which state-of-the-art solutions address them. We conducted a systematic literature search using ACM Digital Library, IEEE Xplore, and PubMed Central. We included papers providing comprehensive discussions of one or more technical aspects of e-consent systems. Thirty-one papers met our inclusion criteria. Two distinct topics were identified, the first being discussions of e-consent representations and the second being implementations of e-consent in data sharing systems. The main challenge for e-consent representations is gathering the requirements for a “valid” consent. For the implementation papers, many provided some requirements but none provided a comprehensive overview. Blockchain is identified as a solution to transparency and trust issues in traditional client-server systems, but several challenges hinder it from being applied in practice. E-consent has the potential to grant data subjects control over their data. However, there is no agreed-upon set of security and privacy requirements that must be addressed by an e-consent platform. Therefore, security- and privacy-by-design techniques should be an essential part of the development lifecycle for such a platform.

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Section: Methodsmentioning

confidence: 99%

Section: Non-repudiationmentioning

confidence: 99%

Section: Other Non-functional Requirementsmentioning

confidence: 99%

Section: Other Non-functional Requirementsmentioning

confidence: 99%

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Security and Privacy Requirements for Electronic Consent

Verreydt

Yskout

Joosen

2021

ACM Trans. Comput. Healthcare

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“…As for off-chain data exchange, Norta et al. 84 propose the DataWallet, a data-sharing system. The data requester and provider interact with the help of a smart contract, ensuring the fairness of data exchange.…”

Section: Constructing Smart Contracts With Turing-complete Languagesmentioning

confidence: 99%

A comprehensive survey on smart contract construction and execution: paradigms, tools, and systems

Zhang

Liu

et al. 2021

Patterns

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Summary Smart contracts are regarded as one of the most promising and appealing notions in blockchain technology. Their self-enforcing and event-driven features make some online activities possible without a trusted third party. Nevertheless, problems such as miscellaneous attacks, privacy leakage, and low processing rates prevent them from being widely applied. Various schemes and tools have been proposed to facilitate the construction and execution of secure smart contracts. However, a comprehensive survey for these proposals is absent, hindering new researchers and developers from a quick start. This paper surveys the literature and online resources on smart contract construction and execution over the period 2008–2020. We divide the studies into three categories: (1) design paradigms that give examples and patterns on contract construction, (2) design tools that facilitate the development of secure smart contracts, and (3) extensions and alternatives that improve the privacy or efficiency of the system. We start by grouping the relevant construction schemes into the first two categories. We then review the execution mechanisms in the last category and further divide the state-of-the-art solutions into three classes: private contracts with extra tools, off-chain channels, and extensions on core functionalities. Finally, we summarize several challenges and identify future research directions toward developing secure, privacy-preserving, and efficient smart contracts.

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