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OpenID Connect: From Theory to GitHub Actions
NGU7 min read·Just now--
what the *** exactly OIDC do?
The Evolution of Identity Authentication
In modern software development, the question “who is this user?” has kept countless engineers up at night. Traditional username/password authentication not only delivers poor user experience but also carries significant security risks — the 2012 LinkedIn breach affected 167 million accounts, and Facebook’s 2019 plaintext password incident exposed 600 million users.
OpenID Connect (OIDC) was born to solve this problem.
1. What Is OIDC?
1.1 From OAuth 2.0 to OIDC
OAuth 2.0 solves the problem of “authorization”: it allows App X to access my Google Drive, but OAuth 2.0 won’t tell App X “who you actually are.”
OIDC adds an identity layer on top of OAuth 2.0, enabling your application to know exactly who the user is, not just “what the user has permitted.”
1.2 Key Benefits of OIDC
- Passwordless Authentication: Password leaks are among the leading causes of data breaches. OIDC delegates identity verification to trusted IdPs (Google…
