Asp net Core JWT authentication multiple audience

1. Can a JWT have multiple audiences?
2. What is a JWT audience?
3. Can you have more than one target audience?
4. Why JWT is not good for sessions?
5. Is JWT good for user authentication?
6. Is JWT good for API authentication?
7. How do I pass a JWT token in headers?
8. What is the difference between JWT issuer and audience?
9. What is the difference between client ID and audience in JWT?
10. Who is issuer and audience in JWT?
11. Is it OK to store JWT in cookie?
12. Is JWT good for Microservices?
13. Can we pass JWT token in query string?
14. What are the 3 types of audiences?
15. Is JWT better than OAuth?
16. What is better than JWT?
17. Is JWT more secure than session?
18. What should be in JWT token audience?
19. What are the disadvantages of using JWT?
20. Does Netflix use JWT?
21. What are the three types of claims uses in JWT?
22. What is the difference between JWT issuer and audience?
23. Who is issuer and audience in JWT?
24. What is audience vs resource?
25. Is JWT better than OAuth?
26. What is better than JWT?
27. Can people steal JWT?
28. Is JWT good for microservices?
29. Does Google use JWT?
30. Is JWT same as cookie?
31. What is the maximum claim size for JWT?
32. What is the maximum length of JWT claim?
33. What is the difference between private and public claims in JWT?

Can a JWT have multiple audiences?

A JWT token can have several audiences, but the consumer of the token only identifies as a single audience. In this case, the consumer accepts and validates a token only if his own audience is in the audience claims of the token.

What is a JWT audience?

What is JWT Audience (aud)? In the JSON Web Token (JWT) standard, the "aud" (audience) claim is a string or array of strings that identifies the recipients that the JWT is intended for. This can be a specific application, a set of applications, or the general public.

Can you have more than one target audience?

It's not uncommon for businesses to have more than one target audience or ideal customer, especially since Covid-19 witnessed many companies having to pivot and adapt their products and services to cater to a new normal.

Why JWT is not good for sessions?

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 JWT good for user authentication?

Information Exchange: JWTs are a good way of securely transmitting information between parties because they can be signed, which means you can be sure that the senders are who they say they are. Additionally, the structure of a JWT allows you to verify that the content hasn't been tampered with.

Is JWT good for API authentication?

Both JWT authentication and API Key authentication are good options when building a secure API. Each has benefits and drawbacks. JWT authentication is standardized and there are libraries you can use to implement API key authentication quickly. However it is typically more complex for your API consumers.

How do I pass a JWT token in headers?

If the request has an authorization header, get the access token from it. Since the authorization header is of the form Bearer access_token , use the split() function to get the access token. Now, use the verify() function to verify the token. It takes the token, the secret, and a callback function as parameters.

What is the difference between JWT issuer and audience?

Issuer ( iss ) - identifies principal that issued the JWT; Subject ( sub ) - identifies the subject of the JWT; Audience ( aud ) - The "aud" (audience) claim identifies the recipients that the JWT is intended for. Each principal intended to process the JWT must identify itself with a value in the audience claim.

What is the difference between client ID and audience in JWT?

The audience of a token is the intended recipient of the token. The audience value is a string -- typically, the base address of the resource being accessed, such as https://contoso.com . The client_id in OAuth refers to the client application that will be requesting resources from the Resource Server.

Who is issuer and audience in JWT?

These are: iss (issuer): Issuer of the JWT. sub (subject): Subject of the JWT (the user) aud ( audience ): Recipient for which the JWT is intended.

Is it OK to store JWT in cookie?

JWT should be stored in cookies. You can use httponly and secure flags depending on your requirements. To protect from CSRF samesite cookie attribute can be set to strict if it generally fits your application - it will prevent logged-in users of your site to follow any link to your site from any other site.

Is JWT good for Microservices?

JWT Authentication Gateway provides very a useful approach for securing Microservices applications with minimal impact to the Microservices code. Thus, application developers can focus on the core business logic without worrying about the security mechanism that guards the application.

Can we pass JWT token in query string?

You can also pass the token in as a paramater in the query string instead of as a header or a cookie (ex: /protected? jwt=<TOKEN>). However, in almost all cases it is recomended that you do not do this, as it comes with some security issues.

What are the 3 types of audiences?

Three categories of audience are the "lay" audience, the "managerial" audience, and the "experts." The "lay" audience has no special or expert knowledge.

Is JWT better than OAuth?

JWT is suitable for stateless applications, as it allows the application to authenticate users and authorize access to resources without maintaining a session state on the server. OAuth, on the other hand, maintains a session state on the server and uses a unique token to grant access to the user's resources.

What is better than JWT?

JSON web token (JWT) is the most popular token-based authentication. However, many security threats have been exposed in recent years, causing people to migrate to other types of tokens. Platform Agnostic Security Token or PASETO is one such token which is being accepted as the best secured alternative for JWT.

Is JWT more secure than session?

JWTs versus sessions cookies

JWTs enable faster authorization and more interoperability with external apps, but they demand more developer investment to address their security complexities, and might not be the best fit for applications that enable access to sensitive data or actions.

What should be in JWT token audience?

The audience aud claim in a JWT is meant to refer to the Resource Servers that should accept the token. As this post simply puts it: The audience of a token is the intended recipient of the token. The audience value is a string -- typically, the base address of the resource being accessed, such as https://contoso.com .

What are the disadvantages of using JWT?

No way to log out or invalidate sessions for users. Moreover, there is no way for a user to disable their sessions across multiple devices. Since the tokens are generated and verified on the fly, we can't have access to the different logged-in clients which can pose problems when you need to identify the devices.

Does Netflix use JWT?

Lately, Netflix has been partnering with device manufacturers to merchandise Netflix content to members as well as nonmembers, and sometimes from the partners' UI itself. For these integrations, we built specific APIs and we chose to use an open standard like JWT to better integrate with partner infrastructure.

What are the three types of claims uses in JWT?

There are three types of claims: registered, public, and private claims. Registered claims: These are a set of predefined claims which are not mandatory but recommended, to provide a set of useful, interoperable claims.

What is the difference between JWT issuer and audience?

Issuer ( iss ) - identifies principal that issued the JWT; Subject ( sub ) - identifies the subject of the JWT; Audience ( aud ) - The "aud" (audience) claim identifies the recipients that the JWT is intended for. Each principal intended to process the JWT must identify itself with a value in the audience claim.

Who is issuer and audience in JWT?

These are: iss (issuer): Issuer of the JWT. sub (subject): Subject of the JWT (the user) aud ( audience ): Recipient for which the JWT is intended.

What is audience vs resource?

Resource: Used during Token issuance at Authorization Server and defines the resources granted access with the token. Audience: Used during Token validation by the Resource Server to determine if the token is allowed to access the given resource (aka the audience).

Is JWT better than OAuth?

JWT is suitable for stateless applications, as it allows the application to authenticate users and authorize access to resources without maintaining a session state on the server. OAuth, on the other hand, maintains a session state on the server and uses a unique token to grant access to the user's resources.

What is better than JWT?

JSON web token (JWT) is the most popular token-based authentication. However, many security threats have been exposed in recent years, causing people to migrate to other types of tokens. Platform Agnostic Security Token or PASETO is one such token which is being accepted as the best secured alternative for JWT.

Can people steal JWT?

JWTs can be best and secure but it is very secured only if it is used in the right way. Attacks like token stealing, XSS, Middle man attacks are still possible.

Is JWT good for microservices?

JWT Authentication Gateway provides very a useful approach for securing Microservices applications with minimal impact to the Microservices code. Thus, application developers can focus on the core business logic without worrying about the security mechanism that guards the application.

Does Google use JWT?

With some Google APIs, you can make authorized API calls using a signed JWT instead of using OAuth 2.0, which can save you a network request.

Is JWT same as cookie?

JWT is simply a token format. A cookie is an HTTP state management mechanism really. As demonstrated, a web cookie can contain JWT and can be stored within your browser's Cookies storage. So, we need to stop comparing JWT vs Cookie.

What is the maximum claim size for JWT?

By default, AM rejects any JWT that expands to more than 32 KiB (32768 bytes), and throws an exception with a message similar to JWT payload decompressed to larger than maximum allowed size .

What is the maximum length of JWT claim?

For details on each type, see JWT claims. You can choose any name you like, but because JWTs should be as compact as possible, the recommended maximum value of a claim name is 8 characters.

What is the difference between private and public claims in JWT?

In general, claims are divided into 3 categories: registered - they are defined in the RFC and have to be used accordingly. public - not defined by the RFC, but their meaning and usage is defined in the Public registry of JWT claims. private - can be used freely, but might not be compatible with other implementations.