Authentication · interview question
In a stateless JWT authentication system, how can you effectively revoke a token?
Multiple choiceHardchapter-17-curatedpremiumauthenticationjwt-signatures
Answer and explanation
Correct answer
B. By maintaining a blacklist of revoked tokens.
Why
Since JWTs are stateless, revoking a token requires maintaining a server-side blacklist of revoked tokens. This allows the server to check if a token has been revoked before accepting it.
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