Verifiable credentials (or VCs) are a standard format for the digital representation of credentials (documents that collect attributes about a subject) that are cryptographically secure, verifiable through machines, and that guarantee privacy by enabling methods such as minimum disclosure.
VCs can be used to describe identity credentials, such as academic diplomas, driver’s licenses, passports, insurance cards, vaccination records (and so much more).
Verifiable Credentials are formed by three components:
Credential Metadata: Properties or attributes of the credential that reference the holder (or user), the issuer, associated DIDs, the issue date, and the expiration date.
Claims: A statement about a subject (individual, legal entity, or thing).
Proofs: Cryptographic signatures tied to private keys that prove the user sharing the VC is the subject of the information.
To ensure credentials are shared and interpreted correctly, each of these credentials requires a template.
Below you can see the step-by-step tutorial on how to issue your first credential.
1. Create an Issuance Template
The issuance template is used to verify user information for the issuance of credentials.
When accessing Gataca Studio, you can create a new issuance template from the main dashboard or by clicking “Create issuance template“ in the Issuance templates section.
Issuance ID - Name the issuance template
The first step is to select your issuance template name (Issuance template identifier).
This name will be associated with the issuance process for users, and it will also serve as a reference to the credential the user is requesting when interacting with your platform.
Example:
General configuration
Requester DID - How to select the DID method
Issuance
Credential Types - How to select the credential type to be issued?
Credential Attributes - What credential attributes include?
Credential Issuance Requirements
What is a credential claim?
Add credential claim - What credentials should I request from the user?
How to select required credentials and optional credentials
Constraints
Credential level of assurance - How to determine which credentials are trusted?
Credential data agreement - How to select the credential purpose
Create a custom purpose
Security configuration
Add app authentication
Add two-factor authentication
Successful configuration – How to add issuance template to API key