Intermediate
Cybersecurity & Cryptography
Q53 / 100
What is a JSON Web Token (JWT)?
Correct! Well done.
Incorrect.
The correct answer is B) A compact, URL-safe token consisting of a header, payload, and signature (or encryption) for transmitting claims between parties
B
Correct Answer
A compact, URL-safe token consisting of a header, payload, and signature (or encryption) for transmitting claims between parties
Explanation
JWT = base64url(header).base64url(payload).signature. Signed with HS256 (HMAC) or RS256 (RSA). Stateless: server verifies signature without session storage. Claims: iss, sub, exp, aud. Never store sensitive data in payload (it's not encrypted by default).
Progress
53/100