Reverse Engineering (Global)
High-quality technical overview of Reverse Engineering in the context of blockchain security.
Roles: 1. Identity Store. 2. Auth Service. 3. Token Issuer. Standards: SAML 2.0, OpenID Connect (OIDC), OAuth 2.0. Examples: Okta, Auth0, Ping Identity, Microsoft Entra ID.
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🧒 Explique como se eu tivesse 5 anos
Imagine you want to go into five different clubs. Usually, you would have to show your ID to five different guards. An IdP is like a special VIP wristband station at the start of the street. You show your ID once, get a magic wristband, and all five clubs let you in just by looking at that wristband. The station that gave you the wristband is the Identity Provider.
🤓 Expert Deep Dive
Technically, an IdP is a 'Token-Issuing Authority' in a federated identity model. It manages a 'User Directory' and handles the 'Authentication' part of the IAM equation. When a user attempts to access a 'Service Provider' (SP), the SP redirects the user to the IdP. After successful authentication, the IdP sends a 'SAML Assertion' or an 'OIDC ID Token' back to the SP. This trust is based on 'Asymmetric Cryptography': the IdP signs the token with a private key, and the SP verifies it using the IdP's public key. This architecture is the foundation of modern 'Enterprise SSO' and 'Social Login'.