OAuth 2.0 and OpenID Connect in Cybersecurity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to identify the OAuth 2.0 flow used for server-to-server communication.

Cybersecurity

The OAuth 2.0 flow used for server-to-server communication is called the [1] flow.

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AResource Owner Password Credentials

BClient Credentials

CImplicit

DAuthorization Code

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing Client Credentials with Authorization Code flow.

Thinking Implicit flow is used for server-to-server communication.

The Client Credentials flow is used when applications request access tokens to access their own resources, not on behalf of a user.

2fill in blank

medium

Complete the sentence to explain what OpenID Connect adds to OAuth 2.0.

Cybersecurity

OpenID Connect adds [1] to OAuth 2.0 to allow user authentication.

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Aencryption

Bauthorization

Cidentity layer

Dtoken revocation

Attempts:

3 left

💡 Hint

Common Mistakes

Thinking OpenID Connect adds authorization features.

Confusing encryption with identity features.

OpenID Connect builds on OAuth 2.0 by adding an identity layer, enabling clients to verify the identity of the user.

3fill in blank

hard

Fix the error in the statement about OAuth 2.0 tokens.

Cybersecurity

The [1] token is used to access protected resources directly.

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ARefresh

BAuthorization

CID

DAccess

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing ID token with Access token.

Thinking Refresh token is used to access resources.

The Access token is what clients use to access protected resources. Refresh tokens are used to obtain new access tokens.

4fill in blank

hard

Fill both blanks to complete the OpenID Connect authentication flow description.

Cybersecurity

The client sends an authorization request to the [1] and receives an [2] token upon successful authentication.

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Aauthorization server

Brefresh

CID

Dresource server

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up resource server with authorization server.

Confusing refresh token with ID token.

The client communicates with the authorization server and receives an ID token to confirm user identity.

5fill in blank

hard

Fill all three blanks to complete the OAuth 2.0 token request example.

Cybersecurity

POST /token HTTP/1.1
Host: [1]
Content-Type: application/x-www-form-urlencoded

grant_type=[2]&client_id=[3]

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Aauth.example.com

Bclient_credentials

Cabc123client

Attempts:

3 left

💡 Hint

Common Mistakes

Using resource server domain as host.

Using authorization_code as grant_type here.

This example shows a token request to the authorization server using the client credentials grant type with a client ID.