jwt

Dotnet core 2.0 authentication multiple schemas identity cookies and jwt

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Asp.Net Core 2.0 definitely support multiple authentication schemes. Rather than a hacking with authenticate middleware, you can try to specify the schema in Authorize attribute: [Authorize(AuthenticationSchemes = JwtBearerDefaults.AuthenticationScheme)] I gave a try and it worked fine. Assuming you have added both Identity and JWT as below: services.AddIdentity<ApplicationUser, ApplicationRole>() services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme) Since AddIdentity() already set cookie authentication … Read more

How to encrypt JWT security token?

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I know this an old post, but I am adding my answer in case if someone is still searching for the answer. This issue is addressed in Microsoft.IdentityModel.Tokens version 5.1.3. There is an overloaded method available in the CreateJwtSecurityToken function which accepts the encrypting credentials to encrypt the token. If the receiver does not validate … Read more

How to setup Axios interceptors with React Context properly?

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Common Approach (localStorage) It is a common practice to store the JWT in the localStorage with localStorage.setItem(‘token’, ‘your_jwt_eykdfjkdf…’); on login or page refresh, and make a module that exports an Axios instance with the token attached. We will get the token from localStorage custom-axios.js import axios from ‘axios’; // axios instance for making requests const … Read more

What’s the best practice to renew a token for a WebSocket connection

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Quite an old question I’ve asked, so I’d be happy to share our chosen practice: Once the client gets his JWT for the first time (when the application starts), a WebSocket is opened. To authenticate the channel, we send a message that we define as part of our protocol, called authMessage which contains that JWT. … Read more

OAuth2: What is the difference between the JWT Authorization Grant and Client Credentials Grant with JWT client authentication?

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A slightly different perspective on the great answer by Josh C: as it happens both the client authentication and the grant credentials can be expressed as JWTs but the semantics behind them are different. It is about separation of concerns: clients authenticate with a credential that identifies them i.e. they are the so-called subject whereas … Read more

How to get the claims from a JWT in my Flutter Application

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JWT tokens are just base64 encoded JSON strings (3 of them, separated by dots): import ‘dart:convert’; Map<String, dynamic> parseJwt(String token) { final parts = token.split(‘.’); if (parts.length != 3) { throw Exception(‘invalid token’); } final payload = _decodeBase64(parts[1]); final payloadMap = json.decode(payload); if (payloadMap is! Map<String, dynamic>) { throw Exception(‘invalid payload’); } return payloadMap; } … Read more

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