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OAUTH 2.1 explained simply (even if you are not a developer) ! by Julien Topçu
Explore OAuth 2.1 explained in a clear and simple manner, without requiring extensive technical knowledge. Discover how this authorization standard safeguards user data and communication.
- OAuth is a standard protocol for authorization, helping users receive data without sharing passwords.
- The authorization code is not sufficient for fetching contacts, and Facebook has access to your contacts.
- The issue of code sharing occurs when the security manager (Gustave) gives the booking reference number to the hotel.
- Code challenge and code challenge method can be disclosed and are not safe.
- Front channel is vulnerable to interception, and back channel is necessary for secure communication.
- Authorization code flow with PKCE is a secure method of authentication.
- OAuth 2.1 includes the code verifier, which ensures secure communication.
- The authorization server (Gustave) maintains a registry of trusted contact addresses and clients.
- OAuth is designed to prevent the impression problem, where an imposter steals the authorization code.
- The Implicit Flow in OAuth 2 is broken and can lead to security issues.