Building Decentralized Identity with Spruceid: Implement Mobile Driver's Licenses, Verifiable Credentials, and Privacy-First Authentication with Spruc (Paperback) (ISBN-13: 9798277602850)

Build real decentralized identity systems with SpruceID from verifiable credentials and mobile drivers licenses to wallet based authentication that you can run in production.

Most teams trying to adopt decentralized identity run into the same wall. Standards like DIDs, verifiable credentials, ISO mobile documents and OpenID based flows are complex, scattered across specs and examples, and rarely shown working together end to end. It is easy to get lost in theory or stuck with demos that do not survive production constraints.

Building Decentralized Identity with SpruceID gives you a practical path through that complexity. You learn how to design, implement and operate issuers, wallets and verifiers using SpruceKit, DIDKit, ISOmDL and Sign In With Ethereum, with a constant focus on real protocols, real code and realistic security and privacy tradeoffs.

• Understand decentralized identifiers, DID documents and verifiable credential data models, and apply them directly with DIDKit and SpruceKit.
• Design and build issuers, wallets and verifier applications, including QR based verification flows, device reader roles and backend validation services.
• Implement mobile drivers licenses and other mdoc based credentials with ISOmDL, including device engagement, reader engagement, offline and online verification, and a full demo application.
• Use OpenID for Credential Issuance and OpenID for Verifiable Presentations to drive issuance and presentation flows that connect wallets to HTTP APIs in a predictable way.
• Integrate wallet based authentication with Sign In With Ethereum, connect SIWE to existing backend sessions, and combine SIWE, DIDs and verifiable credentials in a single login flow.
• Design multi format credential strategies that issue verifiable credentials, mobile drivers licenses and SD JWT credentials from one backend, plan verifier compatibility, and test interoperability across multiple wallets and libraries.
• Apply serious security, privacy and operations practices, including threat modeling, key storage hardening, secure transport and replay protection, selective disclosure and unlinkability, monitoring, schema and SDK versioning, incident response and revocation, and migration from existing identity systems.

This is a code heavy guide. You work with concrete examples in languages such as Rust, TypeScript, Go and Swift, along with configuration for build pipelines and production grade services, so you can adapt the patterns directly to your own stack.

Grab your copy today and start building decentralized identity solutions with SpruceID that stand up to real users, real traffic and real constraints.