Is JWT really stateless?

Because the user receives a JWT after a successful login, which contains all important information about the user. This means that the session no longer has to be saved on the server and is therefore also called a stateless session.

Why is JWT called stateless?

JSON Web Tokens (JWT) are referred to as stateless because the authorizing server needs to maintain no state; the token itself is all that is needed to verify a token bearer's authorization. JWTs are signed using a digital signature algorithm (e.g. RSA) which cannot be forged.

Why you should never use JWT?

Bottom line. 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.

Is token based authentication stateless?

Because the token is a self-contained entity that conveys all the required information for authenticating the request, then it is often referred to as stateless authentication.

Is JWT really secure?

JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted because it is digitally signed.

100% Stateless with JWT (JSON Web Token) by Hubert Sablonnière

Can you steal a JWT?

Generally speaking, this is nice, but what happens if your entire JWT is stolen? Because JWTs are used to identify the client, if one is stolen or compromised, the attacker has full access to the user's account in the same way they would if the attacker had compromised the user's username and password instead.

Can JWT be hijacked?

Although the JWT token can be used in web applications there is a number of caveats that come with the choice of implementing JWT authentication tokens that can result in them being hijacked.

What are the disadvantages of using JWT?

Compromised Secret Key

One of the major cons of relying on tokens is that it relies on just one key. Yes, JWT uses only one key, which if handled poorly by a developer/administrator, would lead to severe consequences that can compromise sensitive information.

Is OAuth stateless or stateful?

OAuth 2.0 protocol leaves state up to the implementation.

Is JWT better than session?

Since userId is got by decrypting the JWT token, no DB call is required to get userId, so somewhat faster that session approach. Servers can be scaled separately, without the need share sessionDB. This makes the JWT approach a great option for micro-services architecture.

Does Facebook use JWT?

It provides an entry point: “/auth/facebook” that redirects to FBs and proceeds to the authentication. After that it acquires the AccessToken for the logged user and creates a JWT Token that returns to the client.

Does Instagram use JWT?

It seems that instagram doesn't use jwt (Json web token) in it's authentication system. As you know jwt is a more secure way for user authentication instead of session based systems. In jwt token is stored in the database and with each request, we send the token in our localStorage to serve to validate that.

Does Google use sessions or JWT?

Google does not use JWTs for user sessions in the browser. They use regular cookie sessions. JWTs are used purely as Single Sign On transports so that your login session on one server or host can be transferred to a session on another server or host.

Does JWT replace session?

Thank you so much for your detailed answer, JWT could not fully replace session, so a lot of the merit of JWT(like CDN, stateless etc) would only work for Authentication server, not the business server, unless we use Redis to save session data as Spring recommended.

Can we store JWT in cookie?

To keep them secure, you should always store JWTs inside an httpOnly cookie. This is a special kind of cookie that's only sent in HTTP requests to the server. It's never accessible (both for reading or writing) from JavaScript running in the browser.

What is the difference between cookies and JWT?

A cookie can be a medium, but its most significant function is how it interacts with the browser. Cookies are set by the server and sent in requests in very specific ways. JWT on the other hand is exclusively a medium, it is an assertion of some facts in a particular structure.

Is SAML stateless?

A typical service reads the SAML assertion, extracts the subject and claims then uses them for authentication or authorization right there in the same execution context. This is still stateless.

Is Spring Security stateless?

stateless – No session will be created or used by Spring Security.

Are cookies stateless?

Web application servers are generally "stateless": A series of HTTP requests from the same browser appear to the server as totally independent; it's not obvious that they are all coming from the same browser or user.

Does JWT put your web app at risk?

No they are not. Also the same applies to sessions, sessions should be refreshed, too. To clean up, your application may null out the session or remove the persisted value from the data store. The result is the same; no more session.

What are some pros and cons of JWT?

Is JWT the same as OAuth?

JWT is a JSON based security token forAPI Authentication

JWT is just serialised, not encrypted. OAuth is not an API or a service: it's an open standard for authorization . OAuth is a standard set of steps for obtaining a token. There are 5 different flow patterns.

Why is JWT not encrypted?

JWT is a stateless session, so it does not need to be saved in a database in the server-side like cookies, it only exists in the client side. please notice that it is not encrypted it's just encoded which means you can use base64 decode and you will get the JSON object in clear.

Can JWT be spoofed?

Spoofing and reconstruction of signature is nearly impossible without the private key (assuming you are using asymmetric signing algorithm like RS256) that used for signing the original JWT. The JWK information available via OIDC discovery document only contains the public key.

Can we tamper JWT?

JWT by itself is not tamper proof. To make it secure, it must be transformed with these 2 steps: Sign with Sender's private key. Encrypt with Receiver's public key.