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SSI Kit
SSI Kit
  • General
    • Introduction
    • Transition To The Community Stack
    • SSI Kit | Basics
      • Overview
      • Functionality
      • Components
    • SSI Kit
      • SSI Flavors & Ecosystems
        • Trust Registries
        • Keys
        • Decentralized Identifiers (DIDs)
        • Verifiable Credentials (VCs)
        • Data Exchange Protocols
      • Architecture
        • Low-Level Service Abstraction
        • Ecosystem Abstraction
        • High-Level Interfaces / APIs
      • Use Cases
      • Self-Sovereign Identity (SSI)
        • SSI | Basics
        • Technologies & Concepts
          • Registries
          • Decentralised Identifiers (DIDs)
          • Verifiable Credentials (VCs)
          • Verifiable Presentations (VPs)
          • Data Exchange (Protocols)
  • Getting started
    • Quick Start
    • REST API
      • Signatory API - For Issuers
      • Custodian API - For Holders
        • Key management
        • Did management
        • Credentials management
      • Auditor API - For Verifiers
      • Core API
        • Cryptographic keys
        • Decentralised-Identifiers
        • Verifiable-Credentials
      • API Serving Configs
    • Dependency (JVM)
      • Java Examples
      • Kotlin Examples
    • CLI | Command Line Interface
      • Key Management
      • Decentralized Identifiers
      • Verifiable Credentials
      • OpenID Connect (OIDC)
    • Building the Project
      • Docker Build
      • Local Build
    • Project Configurations
    • Demo
  • Ecosystems
    • EBSI
      • Basics
      • Use Cases & Flow Diagrams
      • Command line interface
        • DID Registration
      • REST API
      • Usage / examples
        • Onboarding & DIDs
        • Build end-to-end use cases
    • IOTA
      • OIDC4VP profile for Login-with-IOTA
      • Login With IOTA Demo
    • Velocity
      • Basics
        • Onboarding
        • Issuing
        • Inspection
      • Integration with SSIKit
      • Command line interface
        • Onboarding
        • Issuing
        • Inspection
    • cheqd
      • Integration architecture
      • Create DID
      • Issue VC
      • Verify VC
  • Tutorials
    • My First VC
    • Advanced VC
  • Concepts
    • Credential Templates
    • Verification Policies
      • Static Policies
      • Parameterized Policies
      • Dynamic/Custom Policies
        • Creating Dynamic Policies
        • Using Dynamic Policies
        • Removing Dynamic Policies
        • Dynamic Policies | Data Classes
    • Selective Disclosure
      • Intro
      • Issuing a SD-JWT Credential
      • Verifying a SD-JWT Credential
    • Credential Statuses
      • StatusList2021Entry
      • SimpleCredentialStatus2022
      • Issue credentials with credentialStatus
      • REST API
        • Check the status of a credential
        • Revoke a credential
      • CLI
        • Check the status of a credential
        • Revoke a credential
    • DID Web
    • Open Policy Agent (OPA)
      • Setup
    • OpenID Connect (OIDC)
      • Credential Issuance
        • OIDC4CI | Example
      • Presentation Exchange
        • OIDC4VP | Example
    • Delegation and Mandates
  • Community
    • Discord
    • Twitter
    • Newsletter
    • GitHub Discussions
  • DEVELOPER RELATIONS
    • Contribute
    • Roadmap
    • Share Feedback
    • Contact
  • Product Editions
    • Open Source | Always Free
    • Enterprise | Self-Managed
    • Cloud Platform | Managed
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  1. General
  2. SSI Kit
  3. Self-Sovereign Identity (SSI)
  4. Technologies & Concepts

Data Exchange (Protocols)

Data Exchange (Protocols) enable the exchange of data (VCs) between different parties.

Different authentication and data exchange protocols are used to securely transfer identity data (e.g. VCs, VPs) between parties (e.g. from an Issuer to a Holder). They typically establish a mutually authenticated and encrypted data channel between the communicating parties.

The most common data exchange protocols used for SSI are:

  • OIDC4SSI / SIOP (Self-Issued OpenID Connect Provider): An extension of a mature authentication and authorization protocol called "OpenID Connect" (OIDC).

  • DIDComm: A novel protocol specifically designed for SSI and maintained by the Decentralized Identity Foundation (DIF).

  • Credential Handler API: A proposed browser-extension that may be used to connect the user's identity wallet to a web-application.

Our solutions enable you to use different data exchange protocols like OIDC/SIOP as required by different ecosystems.

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Last updated 2 months ago

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