Universal Containers is budding a web application that will connect with the Salesforce API using...

JWT OAuth Flow is a protocol that allows a client app to obtain an access token from Salesforce by using a JSON Web Token (JWT)instead of an authorization code. The JWT contains information about the client app and the user who wants to access Salesforce. To use this flow, the client app needs to have a connected app configured in Salesforce. The connected app is a framework thatenables an external application to integrate with Salesforce using APIs and standard protocols. To support JWT OAuth Flow, two settings need to be configured in the connected app:

The Use Digital Signature option, which enables the connected app to verifythe signature of the JWT using a certificate.

The “api” OAuth scope, which allows the connected app to access Salesforce APIs on behalf of the user. References: JWT OAuth Flow, Connected Apps, OAuth Scopes