Decentralized ID and Self-Sovereign Identity Solutions Using Blockchain: A Systematic Literature Review

Abstract

Today users do not have control over their digital identities. To access and validate them, they must authenticate through a third party which they must trust. This is a problem that researchers have addressed with the blooming of new paradigms such as Decentralized Identifiers (DIDs) and Self-Sovereign Identity (SSI). In this context, blockchain appears as a new path that ensures traceability to all transactions. Although there are several primary studies related to this topic, there needs to be more contributions that condense all the information of research groups in a secondary study, which summarizes the techniques and trends of DIDs and SSI. Therefore, this paper presents a systematic literature review to identify research trends, challenges, and solutions to DID and SSI using blockchain. Twenty-three papers published from 2014 to October 2022 were selected following inclusion and exclusion criteria. The investigation points out how most DIDs and SSI solutions are set in the general domain as academic postulations that could be released in the commercial field.