A Blockchain and Self-Sovereign Identity Empowered Digital Identity Platform

Bandara, Eranga; Liang, Xueping; Foytik, Peter; Shetty, Sachin; Zoysa, Kasun De

doi:10.1109/icccn52240.2021.9522184

Cited by 29 publications

(36 citation statements)

References 14 publications

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“…In order to let each user has one and only digital identity, SSI schemes with sybil-resistance [22][23][24][25][26] are proposed. A commitment scheme combined with zk-SNARK was introduced in [22] to provide integrity and privacy of user information simultaneously.…”

Section: Ssi Schemes With Sybil-resistancementioning

confidence: 99%

“…For the authenticity and reliability of user identity, biometric identification is introduced into SSI schemes [23][24][25][26]. In 2018, Othman and Callahan [25] designed a novel method for decentralized biometric-based self-sovereign identity.…”

Section: Ssi Schemes With Sybil-resistancementioning

confidence: 99%

“…In 2021, Bandara et al [26] proposed a blockchain and self-sovereign identity empowered digital identity platform. For full control over the data, the information required for registration (name, address, photo, etc.)…”

Section: Ssi Schemes With Sybil-resistancementioning

confidence: 99%

“…According to the goals to achieve, existing SSI schemes can be divided into the following three categories: junior SSI schemes [17][18][19][20][21], SSI schemes with sybil-resistance [22][23][24][25][26], and SSI schemes with accountability [27,28]. To give users' control over their identities and data, junior SSI schemes adopt DID standards [17], smart contracts [18,19], or credential chain [21].…”

Section: Introductionmentioning

confidence: 99%

“…However, the fact that users can hold as many identities as they want facilitates the implementation of sybil attacks. erefore, many scholars introduced additional certificate authority [22] and biometrics [23][24][25][26] to ensure that each user has one and only DID-based digital identity in their SSI schemes with sybil-resistance. But unfortunately, the above schemes cannot reveal the identities of malicious users.…”

Section: Introductionmentioning

confidence: 99%

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NSSIA: A New Self-Sovereign Identity Scheme with Accountability

Lyu

Cheng

et al. 2022

Security and Communication Networks

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Self-sovereign identity (SSI) is a new distributed method for identity management, commonly used to address the problem that users are lack of control over their identities. However, the excessive pursuit of self-sovereignty in the most existing SSI schemes hinders sanctions against attackers. To deal with the malicious behavior, a few SSI schemes introduce accountability mechanisms, but they sacrifice users’ privacy. In addition, the digital identities (static strings or updatable chains) in the existing SSI schemes are as inputs to a third-party executable program (mobile app, smart contract, etc.) to achieve identity reading, storing and proving, and users’ self-sovereignty are weakened. To solve the above problems, we present a new self-sovereign identity scheme to strike a balance between privacy and accountability and get rid of the dependence on the third-party program. In our scheme, one and only individual-specific executable code is generated as a digital avatar-i for each human to interact with others in cyberspace without a third-party program, in which the embedding of biometrics enhances uniqueness and user control over their identity. In addition, a joint accountability mechanism, which is based on the shamir (t, n) threshold algorithm and a consortium blockchain, is designed to restrict the power of each regulatory authority and protect users’ privacy. Finally, we analyze the security, SSI properties and conduct detailed experiments in terms of the cost of computation, storage, and blockchain gas. The analysis results indicate that our scheme resists the known attacks and fulfills all the six SSI properties. Compared with the state-of-the-art schemes, the extensive experiment results show that the cost is larger in server storage, blockchain storage, and blockchain gas, but is still low enough for practical situations.

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Section: Ssi Schemes With Sybil-resistancementioning

confidence: 99%

Section: Ssi Schemes With Sybil-resistancementioning

confidence: 99%

Section: Ssi Schemes With Sybil-resistancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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NSSIA: A New Self-Sovereign Identity Scheme with Accountability

Lyu

Cheng

et al. 2022

Security and Communication Networks

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The blockchain conundrum: An in‐depth examination of challenges, contributing technologies, and alternatives

Reshi,

Sholla

2023

Concurrency and Computation

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SummaryThe accelerated development of information and communication technologies has generated a demand for data storage that is effective, transparent, immutable, and secure. Distributed ledger technology and encryption techniques such as hashing and blockchain technology revolutionised the landscape by meeting these requirements. However, blockchain must overcome obstacles such as low latency, throughput, and scalability for its full potential. Investigating blockchain's structure, types, challenges, promises, and variants is necessary to understand blockchain and its capabilities comprehensively. This paper overviews various aspects, such as emergent blockchain protocols, models, concepts, and trends. We classify blockchain variants into five essential categories, DAG, TDAG, Sharding, Consensus, and Combining methods, based on the structure each follows, and conduct a comparative analysis. In addition, we explore current research tendencies. As technology progresses, it is essential to comprehend the fundamental requirements for blockchain development.

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An Investigation into How Smartphones Can Be Secured Against MiTM Attacks: Financial Sector

Steiner-Otoo,

Jahankhani

2022

Blockchain and Other Emerging Technologies for Digital Business Strategies

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A Blockchain and Self-Sovereign Identity Empowered Digital Identity Platform

Cited by 29 publications

References 14 publications

NSSIA: A New Self-Sovereign Identity Scheme with Accountability

NSSIA: A New Self-Sovereign Identity Scheme with Accountability

The blockchain conundrum: An in‐depth examination of challenges, contributing technologies, and alternatives

An Investigation into How Smartphones Can Be Secured Against MiTM Attacks: Financial Sector

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