Some of the critical components of Self Sovereign Identity
Decentralized Identifiers (DIDs): DiDs are the foundational building blocks, providing each user with a unique, globally resolvable identifier. Users create and own them, eliminating the need for central authorities to issue and manage identities.
Verifiable Credentials (VCs): VCs are digitally signed statements that attest to specific attributes or claims about a user. Issuers create VCs; users hold and selectively disclose them to verifiers without revealing unnecessary information.
Distributed Ledger Technology (DLT): SSI often leverages distributed ledger technology (blockchain) to secure and decentralize the storage and verification processes. The blockchain ensures tamper-proof records of DIDs, VCs, and associated public keys. Users store their credentials in personal data stores, often called identity hubs. These hubs are under the user's control, enhancing privacy and allowing seamless access from various devices.
Interoperability Standards: SSI solutions adhere to interoperable standards such as DIDs and Verifiable Credentials defined by the World Wide Web Consortium (W3C). This ensures compatibility and widespread adoption across different platforms and applications.
Some advantages:
User Empowerment: Users have complete control and ownership of their identity, reducing the risk of identity theft and data breaches.
Privacy by Design: Selective disclosure and zero-knowledge proofs enable users to share only necessary information, enhancing privacy.
Interoperability: Standardized protocols facilitate seamless integration with various applications and services.
Security: Using decentralized ledgers and cryptographic techniques enhances the security and integrity of identity information.