sd-jwt-intro

Explain SD-JWT concepts, disclosures, and selective data presentation.

Updated Mar 7, 2026
One-click install
npx skills add https://github.com/sourcelabbg/eudi-knowledge --skill sd-jwt-intro
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: sd-jwt-intro
Source: https://github.com/sourcelabbg/eudi-knowledge/tree/main/.ai/skills/sd-jwt-intro
Command: npx skills add https://github.com/sourcelabbg/eudi-knowledge --skill sd-jwt-intro

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps users understand the fundamental concepts, use cases, and terminology associated with Selective Disclosure JWTs (SD-JWTs), a privacy-preserving method for sharing specific data from a larger set of claims.

Core Features & Use Cases

  • Introduction to SD-JWT: Explains the need for selective disclosure beyond standard JWTs.
  • Key Definitions: Clarifies terms like Issuer, Holder, Verifier, Disclosure, and Key Binding.
  • Use Case: A user needs to understand how a digital credential can selectively reveal only their age to a service without disclosing their full birthdate or address.

Quick Start

Explain the core concepts of SD-JWT.

Frequently Asked Questions about sd-jwt-intro

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What is selective disclosure JWT and how does it protect digital identity privacy?

Selective Disclosure JWT (SD-JWT) is a cryptographic method that protects digital identity privacy by allowing a holder to share specific claims from a larger credential without disclosing the entire dataset.

How do standard JWTs compare to SD-JWTs for sharing user claims?

Standard JWTs require sharing all embedded claims with a verifier, whereas SD-JWTs separate the core token from individual disclosures, enabling selective data presentation for enhanced privacy.

How does key binding work in SD-JWT to prevent digital credential theft?

Key binding in SD-JWT binds the presented credential to a specific holder's cryptographic key, ensuring that only the legitimate owner can prove ownership and preventing replay attacks by malicious actors.

When should I use selective disclosure for digital identity verification?

You should use selective disclosure when a digital identity verification process requires proving a specific attribute, such as age, without exposing sensitive personal details like a full birthdate or address.

What are the roles of the issuer, holder, and verifier in SD-JWT?

In SD-JWT, the issuer creates and signs the credential, the holder stores the token and selectively presents disclosures, and the verifier validates the specific claims presented by the holder.