![]() The external authentication server can be completely separate from our application server and does not have to share any secret key with other elements of the network, namely with our application server - there is no secret key installed on our server to be accidentally lost or stolen.Īlso, there is no need for any direct live link between the authentication server or the application server for authentication to work (more on that later).įurthermore, the application server can be completely stateless, as there is no need to keep tokens in-memory between requests. or even a completely external third-party authentication provider such as for example Auth0.more typically, a commercial product like a LDAP capable of issuing JWTs.a centralized in-house custom developed authentication server.The biggest advantage of JWTs (when compared to user session management using an in-memory random token) is that they enable the delegation of the authentication logic to a third-party server that might be: So without further ado let's get started with our JWT deep dive! Why JWTs? Using those tools you will be able to troubleshoot yourself out of numerous JWT-related error situations. You will know when to use JWTs and why, you will understand the JWT format to the point that you can manually troubleshoot signatures, and know several online / Node tools to do so. choosing and configuring a third-party authentication serviceĮven when choosing a ready to use JWT-based Authentication solution, there will still be some coding involved, especially on the client but also on the server.Īt the end of this post, you will know JWTs in-depth including a good understanding of the cryptographic primitives that they are based upon, which are used in many other security use cases. ![]()
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