Abstract
Self-Sovereign Identity is an emerging, user-centric, decentralized identity approach utilizing some form of decentralized technology. It provides a means for digital identification without reliance on any external authority, enabling entities to control their identity and data flow during digital interactions while enhancing security and privacy. With the rise of blockchain technology, Self-Sovereign Identity is gathering momentum in academia and industry while the number of research papers increases rapidly. Yet Self-Sovereign Identity is still in a young unstructured field in its early stages of research. Thus, a systematic mapping methodology was adopted to provide a coarse-grained overview of decentralized and Self-Sovereign Identity and structure the research area by identifying, analyzing, and classifying the research papers according to predefined parameters, precisely according to their contribution, application domain, IT field, research type, research method, and place of publication. Furthermore, the nature and scope of the research are determined, meanwhile existing research topics, gained insights into trends, demographics, challenges, gaps, and opportunities for future research are also presented.
Highlights
There is a growing interest in decentralized technology, especially blockchain, and its application in different domains, including identity management [1][2], as underlying infrastructure can facilitate an exchange of assets and enable trust in relationships between entities without the need for an intermediary
We recorded whether the article addresses SSI or whether merely a decentralized identity and noted if it mentioned the term Self-Sovereign Identity, decentralized identifier, and verifiable credentials
We carried out a systematic mapping process which resulted in several maps and visualizations addressing different research perspectives
Summary
There is a growing interest in decentralized technology, especially blockchain, and its application in different domains, including identity management [1][2], as underlying infrastructure can facilitate an exchange of assets and enable trust in relationships between entities without the need for an intermediary. Due to personal data misuse and data breaches that had lead to countless concerns, such as PII leaks and identity thefts, the decentralized identity approach, more narrowly Self-Sovereign Identity (SSI), is gathering momentum and interest in academia and industry. It is being considered by many organizations and governments around the world [3].
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