CODEWITHSUNDEEP
oauth-2.0
Rajesh Kumar Duraisamy
Rajesh Kumar Duraisamy

Reputation: 807

What is the difference between authorization code and Client Credentials?

I am new to OAuth. Can anyone explain to me what is the difference between the Authorization Code and Client Credentials grant types in OAuth?

And also, in which use-cases is each applicable? I will really appreciate the answers.

Upvotes: 6

Views: 6770

Answers (1)

OhadR
OhadR

Reputation: 8879

The authorization code is obtained by using an authorization server as an intermediary between the client and resource owner. Instead of requesting authorization directly from the resource owner, the client directs the resource owner to an authorization server (via its user-agent), which in turn directs the resource owner back to the client with the authorization code.

Before directing the resource owner back to the client with the authorization code, the authorization server authenticates the resource owner and obtains authorization. Because the resource owner only authenticates with the authorization server, the resource owner’s credentials are never shared with the client.

The authorization code provides a few important security benefits, such as the ability to authenticate the client, as well as the transmission of the access token directly to the client without passing it through the resource owner’s user-agent and potentially exposing it to others, including the resource owner.

Client credentials are used as an authorization grant typically when the client is acting on its own behalf (the client is also the resource owner) or is requesting access to protected resources based on an authorization previously arranged with the authorization server.

Hope that helps.

Upvotes: 9

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