What is a JWT?
A JWT is a signed token that proves who a user is. Below you can read how it is used.
A JWT (JSON Web Token) is a compact, signed token that proves who a user is and what they may do. After logging in, an application is given such a token, so that it can verify the identity on every request without logging in again.
A token as proof
A JWT (JSON Web Token) is a compact piece of data that is given to an application after logging in. It contains, encrypted, who the user is and what they may do, and is digitally signed so that tampering is impossible.
On every subsequent request the user sends the token along, and the system can immediately check whether it is correct, without logging in again or consulting a database. That makes JWTs fast and suitable for APIs and portals.
JWT in connections
JWTs are widely used in combination with OAuth and OpenID Connect. We deploy them to give connections and portals secure access, with tokens that contain exactly the right rights and expire by themselves.
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