Introduction

Vercre comprises a collection of libraries for issuing, holding, and verifying Verifiable Credentials. It is designed to be modular and flexible, allowing implementers to use only the modules needed.

Libraries

The three top-level Vercre libraries can be used independently or work together for an end-to-end Verifiable Data solution:

• vercre-holder — greatly simplifies building cross-platform wallets.
• vercre-issuer — for building credential issuance APIs.
• vercre-verifier — for building verifiable presentation APIs.

Shell

Each library requires a 'shell' to wrap and expose functionality. The shell is responsible for handling the application's specific requirements, such as user interface, storage, and network communication.

In the case of the server-side libraries (vercre-issuer and vercre-verifier), the shell is typically an HTTP server. While in the case of the holder's agent library (vercre-holder), the shell is typically a mobile or web application.

Example 'shell' implementations can be found in the examples directory.

Implementation

The libraries are written in Rust and are designed to be used in a variety of environments, including WebAssembly, mobile, and server-side applications.