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In an era defined by the evolving Identity and Access Management (IAM) landscape, this paper shines a spotlight on the critical aspect of usability limitations inherent in the Self-Sovereign Identity (SSI) paradigm. While SSI holds the promise of returning control and privacy to individuals, it presents challenges in terms of user experience for the layman, particularly concerning the management of cryptographic keys, credentials, and the evaluation of service provider requests for private information. To tackle these inherent limitations of SSI, this paper introduces a new digital identity model named Fiduciary Identity. It is constructed over the fiduciary relationship, a poorly explored topic in IAM. The fiduciary acts on behalf of the user, simplifying interactions and enhancing usability, bridging the gap between the potential advantages of SSI and the practicality of everyday digital life. The innovative concept of the fiduciary identity acts as a bridge toward achieving a user-centric, secure, and privacy-preserving IAM ecosystem.
Schardong et al. (Mon,) studied this question.