zkPass
zkPass Developer's Guide
zkPass Developer's Guide
  • ⛩ī¸Introduction
  • ZKPASS OVERVIEW
    • 🏛ī¸Architecture
    • 🧱zkPass Components
    • 🤝Trust Models
    • 🚚Deployment
      • Public-Cloud Hosting
      • Private-Cloud Hosting
      • On-Premise Hosting
    • đŸŽ¯SDK Objectives
    • 🔑API Key
  • zkPass Modules
    • ☁ī¸DVR
      • đŸ—ģHigh Level View
      • 🗝ī¸Key Concepts
        • User Data
        • DVR Info
        • zkPass Proof
      • đŸ‘ĨDVR Client Roles
        • Data Issuer
          • Providing User Data Retrieval API
        • Data Holder
          • 1. Retrieving the DVR
          • 2. Retrieving the User Data
          • 3. Generating the Proof
          • 4. Verifying the Proof
        • Proof Verifier
          • 1. Providing DVR Retrieval API
          • 2. Providing Proof Verification API
      • 🔎DVR Query
        • Building Query Engine
        • Processing Query
        • Query Grammar
      • 🏗ī¸Integration Guidelines
      • 🌊DVR Workflows
  • SDK Tutorial
    • Typescript
      • Running Code
      • Code Snippet
      • Directory Structure
    • Rust
      • Running Code
      • Code Snippet
      • Directory Structure
  • API Reference
    • Typescript
      • Classes
        • Class: DvrModuleClient
      • Functions
        • Functions: ffiHelper
        • Functions: jwtHelper
        • Functions: publicKeyOptionUtils
      • Type Aliases
        • Types
        • Types: ffiType
      • Interfaces
        • Interfaces
      • Constants
        • Constants
        • Enums
      • Errors
    • Rust
      • Building Rust doc
    • RESTful API
      • Overview
      • Endpoints
        • Generate Proof
      • Utilities
        • Generate Key Pair
        • Sign User Data and DVR
        • Encrypt User Data and DVR
      • Errors
  • Glossary
    • DVR
    • User Data
    • ZKP
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  1. zkPass Modules
  2. DVR
  3. DVR Client Roles
  4. Data Holder

2. Retrieving the User Data

Retrieving the User Data from the Data Issuer

Previous1. Retrieving the DVRNext3. Generating the Proof

Last updated 6 months ago

From Data Holder perspective, no integration with the Dvr module client SDK library is needed for this step.

The User Data retrieves the user data that is needed by the DVR by calling the provided by the Data Issuer.

The zkPass call sequence diagram, specifically steps 4–6, corresponds to the User Data retrieval process.

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