JWT, or JSON Web Token, is an open standard used to share security information between two parties — a client and a server . Each JWT contains encoded JSON objects, including a set of claims. JWTs are signed using a cryptographic algorithm to ensure that the claims cannot be altered after the token is issued.
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Although JWT does eliminate the database lookup, it introduces security issues and other complexities while doing so. Security is binary—either it’s secure or it’s not. Thus making it dangerous to use JWT for user sessions .24 Haz 2021
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