⚡ One HLD concept. 60 seconds. Interview ready· 1 of 7
Authentication verifies who you are, while authorization determines what you can do.
⚡ One HLD concept. 60 seconds. Interview ready· 2 of 7
OAuth 2.0 lets apps access user data securely without passwords.
⚡ One HLD concept. 60 seconds. Interview ready· 3 of 7
OpenID Connect allows apps to authenticate users and verify their identities securely.
⚡ One HLD concept. 60 seconds. Interview ready· 4 of 7
Access tokens are short-lived tokens for API access, while refresh tokens renew them without re-login.
⚡ One HLD concept. 60 seconds. Interview ready· 5 of 7
Token expiration and refresh token rotation secure user sessions by limiting token lifespan and preventing unauthorized access.
⚡ One HLD concept. 60 seconds. Interview ready· 6 of 7
mTLS allows microservices to verify each other's identities using certificates.
⚡ One HLD concept. 60 seconds. Interview ready· 7 of 7
Encryption at rest and in transit are essential for protecting data both stored and in motion.
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