AI & Machine Learning

JWT Explained: What's Actually Inside a JSON Web Token

Ali Nemati8 hours ago27 sec read2 views0 listens

JSON Web Tokens (JWTs) consist of three base64url-encoded parts: header, payload, and signature. The payload is readable by anyone with the token but remains tamper-evident due to the issuer's secret signature. This makes JWTs useful for secure authentication while keeping sensitive data out of the token itself.

Developers should avoid including sensitive information in the payload and always verify signatures server-side to ensure authenticity.

Read the full article at DEV Community

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