Decentralized Identifier (DID) Definition
A Decentralized Identifier (DID) is a new type of identifier that enables verifiable, self-sovereign digital identity. It is an identifier that is globally unique, resolvable with high assurance over decentralized networks, and is cryptographically verifiable. DIDs are typically associated with cryptographic material, such as public keys, and service endpoints, for establishing secure communication channels.
Decentralized Identifier (DID) Key Points
- DIDs are globally unique identifiers that are created, read, updated, and deactivated by their owners without the need for a central authority or intermediary.
- They are resolvable, meaning they can be used to retrieve a DID Document containing information such as cryptographic keys and service endpoints.
- DIDs are used as the foundation for a self-sovereign identity system, where individuals or organizations have ownership and control over their own digital identities.
- They are a fundamental component of many blockchain and distributed ledger technologies, enabling secure and verifiable transactions.
What is a Decentralized Identifier (DID)?
A Decentralized Identifier (DID) is a new type of digital identifier that is completely under the control of the DID subject, independent from any centralized registry, identity provider, or certificate authority. DIDs are URLs that relate a DID subject with a DID document allowing trustable interactions with that subject. The DID Document contains information such as public keys and service endpoints, which are necessary to initiate secure communication with the DID subject.
Why are Decentralized Identifiers (DIDs) important?
DIDs are important because they enable a new form of self-sovereign identity, where the user has control over their own identity, rather than relying on a centralized authority. This has significant implications for privacy, security, and freedom on the internet. DIDs also enable more secure and efficient verification processes, reducing the risk of identity theft and fraud.
Who uses Decentralized Identifiers (DIDs)?
DIDs are used by individuals, organizations, and devices that wish to establish and control their own digital identities. They are also used by developers and organizations that are building applications and systems on top of blockchain and distributed ledger technologies.
When are Decentralized Identifiers (DIDs) used?
DIDs are used whenever a user needs to establish a secure, verifiable digital identity. This could be when signing up for a service, making a transaction, or communicating securely with another party. DIDs are also used in the development of decentralized applications (dApps) and other systems that leverage blockchain and distributed ledger technologies.
How do Decentralized Identifiers (DIDs) work?
DIDs work by providing a globally unique identifier that is created and controlled by the user. This identifier is associated with a DID Document, which contains public keys for cryptographic operations, service endpoints for communication, and other attributes. The user can use their DID to prove their identity, sign transactions, and establish secure communication channels. Because DIDs are decentralized, they do not rely on a central authority or intermediary, and can be verified independently by any party.
