What is AntChain Decentralized Identity Service DIS
AntChain Decentralized Identity Service (DIS) is a blockchain-based identity management solution. It provides a complete set of features for creating, authenticating, and managing entity identities. DIS helps manage and protect entity data in a standardized way. It also ensures authentic and efficient information exchange, which helps solve the challenges of cross-institutional identity authentication and data collaboration.
This topic introduces the DIS service by describing decentralized digital identities, their ecosystem participants, and the DIS decentralized digital identity infrastructure.
Prerequisite concepts
Before you read this topic, it is helpful to be familiar with the concept of Blockchain as a Service. For more information, see What is Blockchain as a Service?
Decentralized digital identities and ecosystem participants
The blockchain-based DIS service is an efficient, compliant, secure, and trusted digital identity management solution:
The distributed and secure nature of blockchain technology facilitates collaboration across institutions and organizations. It allows data, such as identities, to be shared and replicated among multiple nodes, making it resistant to failures and tampering.
The cryptographic methods of blockchain technology link user entities to their digital identities. User authorization ensures the proper use of personal information, which makes data exchange more trusted and compliant.
A decentralized digital identity network includes the following ecosystem participants:
Holder: The owner and user of a Decentralized Identity (DID). Users create and manage their DIDs through a DID client agent, such as a miniapp.
Issuer: Also known as a certifier, this participant authenticates data. An issuer is an institution or individual that issues a verifiable credential (VC), a type of digital certificate, to a user.
Verifier: Also known as an application party, this participant uses the data. A verifier is an application service provider that allows users to access services with their DID. A verifier is typically an institution or an individual that validates the user's identity, the issuer's identity, and the content of the VC with user authorization.
The DIS decentralized digital identity infrastructure
AntChain DIS uses blockchain technology to build an open identity infrastructure for the Internet of value. It provides the following benefits to participants:
For users: Protects personal information by requiring user authorization for its use. This authorization is traceable and can be revoked.
For issuers: Enables them to join the ecosystem network to attract more users to their services.
For verifiers: Provides access to a unified authentication service network at a low cost and with high efficiency.