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What are some security best practices for using JWT in web applications?
Discuss the recommended practices when implementing JSON Web Tokens (JWT). Consider aspects like signing, expiration, and storage.
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Answer
- Always use a strong signing algorithm (e.g., RS256).
- Ensure tokens have a reasonable expiration time to minimize risk if compromised.
- Store JWTs securely, preferably in HTTP-only cookies.
- Implement token revocation strategies for sensitive operations.
- Avoid storing sensitive user information in JWT payloads.