Decentralized identifier
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Decentralized identifiers (DIDs) are a type of globally unique
DID documents
A decentralized identifier resolves (points) to a DID document, a set of data describing the DID subject, including mechanisms, such as cryptographic public keys, that the DID subject or a DID delegate can use to authenticate itself and prove its association with the DID.[1]
DID methods
Just as there are many different types of
- The name of the DID method (which must appear between the first and second colon, e.g., did:example:).
- The structure of the unique identifier that must follow the second colon.
- The technical specifications for how a DID resolver can apply the CRUDoperations to create, read, update, and deactivate a DID document using that method.
The W3C DID Working Group maintains a registry of DID methods.[3]
Usage of DIDs
A DID identifies any subject (e.g., a person, organization, thing, data model, abstract entity, etc.) that the controller of the DID decides that it identifies. DIDs are designed to enable the controller of a DID to prove control over it and to be implemented independently of any centralized registry,
Standardization efforts
The W3C DID Working Group[8] developed a specification for decentralized identifiers to standardize the core architecture, data model, and representation of DIDs.
The W3C approved the DID 1.0 specification as a W3C Recommendation on July 19, 2022.[1]
The Decentralized Identity Foundation (DIF) published a Dynamic Traveler Profile Generation Specification in June 2023, for use cases in the travel industry. [9]
See also
References
- ^ a b c d e "Decentralized Identifiers (DIDs) v1.0". World Wide Web Consortium. Retrieved 2021-06-01.
- ^ "Decentralized Identifiers (DIDs) v1.0" (PDF). European Commission. Retrieved 2021-06-01.
- ^ "W3C DID Spec Registries". World Wide Web Consortium.
- ^ "Decentralized Identifiers: Everything you need to know about the next-gen web ID tech". The Daily Swig | Cybersecurity news and views. 2022-07-08. Retrieved 2023-08-25.
- ^ "A Primer for Decentralized Identifiers - An introduction to self-administered identifiers for curious people". w3c.github.io. Retrieved 2020-05-26.
- ^ "SSI advocates welcome EU digital wallet, IOTA sees opportunity | Biometric Update". www.biometricupdate.com. 2024-03-08. Retrieved 2024-03-27.
- ^ "China's project to verify real-name digital ID leans into national blockchain ambitions | Biometric Update". www.biometricupdate.com. 2023-12-13. Retrieved 2024-03-27.
- ^ "W3C DID Working Group". World Wide Web Consortium. Retrieved 2020-07-25.
- ^ "SIG Hospitality and Travel". identity.foundation. Retrieved 2024-01-09.