# \#c
**URL:** https://community.auth0.com/tag/c/278.md
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## [JWT implementation without third party library](https://community.auth0.com/t/jwt-implementation-without-third-party-library/49283)
**Author:** [@yashvanth](https://community.auth0.com/u/yashvanth)\
**Replies:** 1\
**Last updated:** [September 8, 2020, 8:03pm UTC](https://community.auth0.com/t/jwt-implementation-without-third-party-library/49283 "2020-09-08T20:03:56Z")
Hi i want to implement the JWT in C language, in Texas instrument controller, but i can’t add third party libraries. I have checked the available C sample codes, but all of the jwt implementation uses third-party libra…
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## [Auth0 with windows application (C++)](https://community.auth0.com/t/auth0-with-windows-application-c/38488)
**Author:** [@somekh.dave](https://community.auth0.com/u/somekh.dave)\
**Replies:** 1\
**Last updated:** [February 26, 2020, 8:15am UTC](https://community.auth0.com/t/auth0-with-windows-application-c/38488 "2020-02-26T08:15:02Z")
We are now considering the option to switch our desktop application to online licensing. It runs on Windows, and the language is MFC C++ 2 questions: Is Auth0 designed to run on Windows applications? Can it support M…
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## [Is it possible to validate the ADFS user with EmailId via Auth0?](https://community.auth0.com/t/is-it-possible-to-validate-the-adfs-user-with-emailid-via-auth0/9224)
**Author:** [@neeraj.kumari](https://community.auth0.com/u/neeraj.kumari)\
**Replies:** 1\
**Last updated:** [December 14, 2018, 5:47pm UTC](https://community.auth0.com/t/is-it-possible-to-validate-the-adfs-user-with-emailid-via-auth0/9224 "2018-12-14T17:47:16Z")
I have implemented ADFS user’s login using Auth0 in Asp.Net C# mvc. And everything is working fine. Now my requirement is to validate the ADFS user using email via auth0 (I mean i want to check whether the user exist on …
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## [Is it possible to fetch all ADFS users using Auto API in ASP.Net C#?](https://community.auth0.com/t/is-it-possible-to-fetch-all-adfs-users-using-auto-api-in-asp-net-c/9213)
**Author:** [@satinder.kaur](https://community.auth0.com/u/satinder.kaur)\
**Replies:** 1\
**Last updated:** [December 14, 2018, 5:49pm UTC](https://community.auth0.com/t/is-it-possible-to-fetch-all-adfs-users-using-auto-api-in-asp-net-c/9213 "2018-12-14T17:49:47Z")
I have implemented ADFS user’s login using Auth0 in ASP.Net and everything is working fine. Now my requirement is that i want to fetch all ADFS users. Is it possible that I can fetch all ADFS users via auth0 api?
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## [Using Auth0 for C# WebAPI, Angular and WPF apps](https://community.auth0.com/t/using-auth0-for-c-webapi-angular-and-wpf-apps/7846)
**Author:** [@russ](https://community.auth0.com/u/russ)\
**Replies:** 3\
**Last updated:** [August 22, 2017, 3:07pm UTC](https://community.auth0.com/t/using-auth0-for-c-webapi-angular-and-wpf-apps/7846 "2017-08-22T15:07:35Z")
We currently have a backend C# WebAPI that uses ASP.NET Identity to a SQL database with \<10 users currently (would not look at migrating users, but starting afresh). There is a Angular website that users log in via the …
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## [JWT Decode .NET broke when setting RS256](https://community.auth0.com/t/jwt-decode-net-broke-when-setting-rs256/6773)
**Author:** [@Steve\_McNiven-Scott](https://community.auth0.com/u/Steve_McNiven-Scott)\
**Replies:** 2\
**Last updated:** [May 29, 2017, 8:19pm UTC](https://community.auth0.com/t/jwt-decode-net-broke-when-setting-rs256/6773 "2017-05-29T20:19:37Z")
This is the decode method I was using, worked fine, but when we moved to the RS256 it tanks when “verify” is true. Otherwise everything decodes okay… is this a concern?
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## [UWP application triggers a "feacft" error log event when using Google/Facebook authentication](https://community.auth0.com/t/uwp-application-triggers-a-feacft-error-log-event-when-using-google-facebook-authentication/6394)
**Author:** [@sggirbekim](https://community.auth0.com/u/sggirbekim)\
**Replies:** 1\
**Last updated:** [May 17, 2017, 5:28pm UTC](https://community.auth0.com/t/uwp-application-triggers-a-feacft-error-log-event-when-using-google-facebook-authentication/6394 "2017-05-17T17:28:07Z")
I’m currently writing a Windows 10 UWP client application, figured I’d start with authentication. Trying to integrate Auth0 as the authentication provider. I’ve got the Auth0 NuGet package installed in the project (Auth…
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## [User class missing from Auth0.Core Nuget package version 4.0](https://community.auth0.com/t/user-class-missing-from-auth0-core-nuget-package-version-4-0/6546)
**Author:** [@misterbalrog](https://community.auth0.com/u/misterbalrog)\
**Replies:** 1\
**Last updated:** [May 9, 2017, 5:51pm UTC](https://community.auth0.com/t/user-class-missing-from-auth0-core-nuget-package-version-4-0/6546 "2017-05-09T17:51:43Z")
Just updated Auth0.Core Nuget package to 4.0 and the Auth.Core.User class is missing. !\[What’s left in Auth0.Core\]\[1\]
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## [Auth0Client.LoginAsync() v4.x doesn't return refresh token in a C# WPF app](https://community.auth0.com/t/auth0client-loginasync-v4-x-doesnt-return-refresh-token-in-a-c-wpf-app/6248)
**Author:** [@craig\_beebe](https://community.auth0.com/u/craig_beebe)\
**Replies:** 0\
**Last updated:** [April 18, 2017, 7:20am UTC](https://community.auth0.com/t/auth0client-loginasync-v4-x-doesnt-return-refresh-token-in-a-c-wpf-app/6248 "2017-04-18T07:20:46Z")
Here’s my code: var auth0 = new Auth0Client( Properties.Settings.Default.auth0Domain, Properties.Settings.Default.auth0ClientID); var handle = new WindowInteropHelper(this).Handle; var windowWrapper = new Window…