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Self-sovereign Identity (SSI)

Last updated Apr 28, 2022 Edit Source

Self-sovereign identity (SSI) is an approach to digital identity that gives individuals control of their digital identities

“Identity is a uniquely human concept; however modern society view this concept of identity as state-issued credentials as driver’s license and social security cards, which suggests a person can lose his very identity if a state revokes his credentials or even if he just crosses state borders.” (Christopher Allen)

Identities are required for trust to be established (Party A needs to ensure Party B is actually who they claim to be and vice versa).

In centralized identity paradigms, this is usually done through authorities (e.g. Certification Authorities) who are trusted by both parties.

In SSI systems, holders have control over unique identifiers (decentralized identifiers). These can be verified using encryption and anchored on some sort of distributed ledger (e.g. blockchain)

# Why SSI matters to the average citizen

# Critiques of SSI

Source: Molly White

Mostly critiques about certain implementations of SBTs or VCs (which she refers to as Verifiable attestations)