Which authentication approach is faster: using JWT or STS?

JWT (JSON Web Token) generally provides faster authentication compared to STS (Security Token Service) because JWT is a self-contained token that contains all the necessary information and can be verified without contacting an external service.

In the case of STS, the client requests a token from the security service, which adds network latency and load on the service. JWT, on the other hand, is validated locally, speeding up the authentication process.

Example: when using JWT, the server simply verifies the token's signature and extracts data without additional requests.

However, it is important to consider that STS can be more flexible and secure in certain scenarios, such as when centralized session management and token revocation are required.