Abstract

Digital identity is the key element of digital transformation in representing any real-world entity in the digital form. To ensure a successful digital future the requirement for an effective digital identity is paramount, especially as demand increases for digital services. Several Identity Management (IDM) systems are developed to cope with identity effectively, nonetheless, existing IDM systems have some limitations corresponding to identity and its management such as sovereignty, storage and access control, security, privacy and safeguarding, all of which require further improvement. Self-Sovereign Identity (SSI) is an emerging IDM system which incorporates several required features to ensure that identity is sovereign, secure, reliable and generic. It is an evolving IDM system, thus it is essential to analyse its various features to determine its effectiveness in coping with the dynamic requirements of identity and its current challenges. This paper proposes numerous governing principles of SSI to analyse any SSI ecosystem and its effectiveness. Later, based on the proposed governing principles of SSI, it performs a comparative analysis of the two most popular SSI ecosystems uPort and Sovrin to present their effectiveness and limitations.

Highlights

  • Digital identity is a precondition to participate in the digital world because it is essential in representing any real-world entity in digital form

  • Federated Identity Management Model (IDM 2.0). This federated IDM model solves two major issues: 1) it removes the organisational burden of managing identity and credentials securely by introducing a third-party IDentity Provider (IDP), which is an additional task alongside the main business operations and 2) it removes the burden from users to manage several identity related credentials for several systems by offering a Single-Sign On (SSO) facility [8], [9]

  • This paper proposed numerous governing principles of SelfSovereign Identity (SSI) for analysing any SSI ecosystem

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Summary

INTRODUCTION

Digital identity is a precondition to participate in the digital world because it is essential in representing any real-world entity in digital form. The user repeats this process and requires separate credentials for each organisation or system, they wish to obtain service from them This federated IDM model solves two major issues: 1) it removes the organisational burden of managing identity and credentials securely by introducing a third-party IDentity Provider (IDP), which is an additional task alongside the main business operations and 2) it removes the burden from users to manage several identity related credentials for several systems by offering a Single-Sign On (SSO) facility [8], [9]. This self-sovereign IDM model is an improvement on the federated IDM model, where it removes the third-party IDP and offers a direct connectivity between a user and organisation It resolves the main issue of ownership of identity related personally identifiable information of a user by offering its full control through the use of a Digital Wallet [10].

PROPOSED GOVERNING PRINCIPLES OF SELF-SOVEREIGN IDENTITY
Data Access Control
Data Storage Control
Longevity
Decentralised
Verifiability
Recovery
Cost Free
3.16. Transparency
3.10. Security
3.11. Privacy
3.12. Safeguard
3.19. Scalability
3.20. Sustainability
14. Accessibility
CONCLUSION
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