JWT is preferred over any other authentication method because of certain distinct benefits it presents.
Developers opt for JWT as these tokens are self-contained and don’t ask for any effort to collect info about the user. Developers don’t have to get involved in database query generation or server authentication for every request. This saves a huge deal of time and effort.
JWTs are known for better security and reliability that comes from their digitally signed nature. As no explicit signing is allowed or needed, no outside source like a hacker or another client can access them.
Using JWT asks for less digital storage space. They have generated servers and then forwarded them to the client who further stores them alongside attaching them to each most recent request.
When it comes to verification, the job is easy with JWT as it won’t ask for extensive searching of the database.
Despite the promising and incomparable advantages, we must not overlook the disadvantages that are tucked with JWT.
Bringing JWT into action asks for added engineering efforts.
The no database call for verification process acts like a hindrance as immediate revocation will require JWT blacklisting implementation. This is a highly time and labor-extensive process.
An attack on the signing key will create a huge security bottleneck. Hackers will be able to generate task-specific JWTs that could potentially hide the actual user’s identity.
When the token expires, JWT will ask for re-authentication. This makes its implementation more extensive.