What are the differences between OAuth and JWT authentication?

What are the differences between OAuth and JWT authentication?

OAuth is an authorization framework, while JWT is a token format. OAuth allows third-party services to exchange information without sharing credentials, whereas JWT is used to securely transmit information between parties as a JSON object.

Can you explain how OAuth works in a practical scenario?

Sure! In a practical scenario, when you log into an app using your Google account, OAuth allows the app to request access to your Google data without needing your password. You authorize the app, and it receives an access token to interact with your Google account.

How does JWT fit into this process?

JWT can be used as the access token in OAuth. After you authorize the app, it receives a JWT that contains claims about your identity and permissions, which it can use to access your data securely.

Are there any security concerns with using JWT?

Yes, some concerns include token expiration, secure storage, and the risk of token theft. It's important to implement proper security measures, such as using HTTPS and validating tokens.