OAuth Protocol
Explore the OAuth 2.0 protocol to understand how it secures communication and authorization in distributed systems. Learn the roles of resource owner, client, resource server, and authorization server, and the step-by-step workflow that ensures safe access to user data across different applications.
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In the World Wide Web, the client can be a web browser, and the server can be an application server.
However, there are more complex scenarios that involve more parties. One such scenario is when a server needs a client’s authorization to retrieve the client’s data from a different server. For example, this could happen when an e-mail application wants to retrieve the email accounts of your friends in a separate social media application in order to add them to your contacts list. OAuth is a protocol that allows this to happen in a secure way.
Note: There are multiple versions of this protocol with significant changes, but we will discuss the OAuth 2.0 version in this lesson. ...