Decentralized Identifiers (DIDs) and SSI

(W3C DID standard, interoperability, privacy control.)

Decentralized Identifiers (DIDs) and Their Role in SSI

What Are Decentralized Identifiers (DIDs)?

DIDs are unique, self-controlled identifiers that allow individuals and organizations to authenticate and verify themselves across digital platforms without relying on centralized identity providers (such as Facebook, Google, or government agencies). Unlike traditional email-based or username-password authentication, DIDs are cryptographically secure and interoperable across different identity systems.

How DIDs Work in Self-Sovereign Identity (SSI)

• A user generates a DID through their digital wallet.

• The DID is linked to a cryptographic key pair.

• Users can sign identity proofs using their private key and share them with verifiers without revealing their private data.

• DIDs can be resolved and verified on decentralized networks, such as Hyperledger, Ethereum, Cardano, and EBSI.

Privacy Control & Interoperability

• DIDs support Zero-Knowledge Proofs (ZKPs) for privacy-preserving verification.

• They enable user-controlled, self-sovereign identity solutions.

• Interoperable across blockchain networks and digital identity ecosystems.

🔗 Sources:

• W3C Decentralized Identifiers Standard: https://www.w3.org/TR/did-core/

• Hyperledger Identity Solutions: https://www.hyperledger.org/

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