<aside> ℹ️ work in progress

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Objective

To evaluate different digital identity stacks to inform and educate stakeholders, aiding the establishment of zk standards for government digital identity projects.

Methodology

1. Literature Review

   • Review existing research and documentation on digital identity stacks.

     • https://github.com/decentralized-identity/decentralized-identity.github.io/blob/master/assets/crosscommunity-architecture-survey-oct-2020.pdf

   • Review fundamental principles of self-sovereign identity (SSI)

     The Laws of SSI and fundamental properties

   • Incorporate criteria from the Digital Public Good Alliance and the Decentralized Identity Foundation.

2. Projects Evaluated

   SSI Solution Research List

   • Existing research
     • Standards and Identity Tech Stacks
     • https://docs.google.com/spreadsheets/d/12hFa574v5PRrKfzIKMgDTjxuU6lvtBhrmLspfKkN4oE/edit?gid=1727803158#gid=1727803158

3. Criteria Development

   • Develop a comprehensive set of criteria for evaluating each project based on fundamental SSI principles and standards from relevant alliances.

Criteria

Product Evaluation (Example)

**Self-Sovereign Identity Basic Principles & Properties**

1) Foundational Property

• Existence. A self-sovereign identity must enable a user to encode her characteristics digitally to assert her existence in the digital domain. This essentially is a quasi-representation of one’s self in digital form.
• Autonomy. A self-sovereign identity must support full autonomy on the management and administration of identity information. A user must be fully independent on creating such an identity, as many as required, without relying on any party and be able to update/remove it when she wishes to do so.
• Ownership. A user must be the ultimate owner of a self-sovereign identity. This applies to any information encoding the identity, including the claims, whether it is self-asserted or provided by a third party.
• Access. A user must have unrestricted access to her identity information. She must be able to retrieve every single piece of information, including claims and assertions, which constitute her identity.
• **Single source.**A user should be the single source of truth regarding her identity. She should be the ultimate guardian to create self-asserted and/or accumulate third party asserted claims leveraging her identity and distribute them when required. This will ensure that third party cannot collude to exchange her identity data without her knowledge. For ease of use, however, she can delegate this task to an autonomous agent which is under her control.

2) Security Property