How to use JSON Web Token (JWT) in Unity 3d?

Question

I'm trying to implement authentication by use of JSON Web Tokens (JWT) in Unity 3D. I searched a lot in google and GitHub and found nothing useful. There is a .NET library in GitHub but i don't know how to use it.

https://github.com/AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnet

I'm new to unity and any help with this would be great.

Hi, you cane create a HttpRequest and set it headrs for JWT authentication. — Babak Fakhriloo, Jul 06 '15 at 09:50
I dont know anything about unity, but I am sure in almost every framework, there are some api to connect to network. You can read this http://docs.unity3d.com/ScriptReference/Network.Connect.html doc. or this question http://stackoverflow.com/questions/8951489/unity-get-post-wrapper — Babak Fakhriloo, Jul 06 '15 at 09:59
I know how to connect to network and this is not my problem. I just want to Encode and Decode JSON with JWT in unity. — hojjat reyhane, Jul 06 '15 at 10:05
I saw this article that explains encode and decode. http://www.codeproject.com/Articles/890684/Authentication-Using-JSON-Web-Token — Babak Fakhriloo, Jul 06 '15 at 10:06
Yes i saw it too. it uses a .Net lib for that and i don't know how to import it in unity. — hojjat reyhane, Jul 06 '15 at 10:22
If you are using Visual Studio, you can easily import that lib as a reference or use Nuget to find the lib. — Babak Fakhriloo, Jul 06 '15 at 10:38
Read this .http://stackoverflow.com/questions/6438122/how-can-i-add-a-reference-in-monodevelop — Babak Fakhriloo, Jul 06 '15 at 17:44

score 3 · Answer 1 · edited Nov 11 '17 at 21:46

3

Here is one way to decode a JSON web token with C# in Unity

var parts = token.Split('.');
if (parts.Length > 2)
{
    var decode = parts[1];
    var padLength = 4 - decode.Length % 4;
    if (padLength < 4)
    {
        decode += new string('=', padLength);
    }
    var bytes = System.Convert.FromBase64String(decode);
    var userInfo = System.Text.ASCIIEncoding.ASCII.GetString(bytes);
}

edited Nov 11 '17 at 21:46

Ivar

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answered Sep 01 '16 at 20:48

David Robinson Jr.

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You should have at least stated that your code is a security vulnerability. You left the signature unverified. – ZARKONES Mar 09 '22 at 20:43

score 2 · Answer 2 · edited Jun 23 '21 at 03:41

2

Sorry for delay,

I found this: Jwt.Net

It actually supports the proper .NET version you need for unity3d which is 3.5 Just try to find DLLs, then put them in your unity project.

Hope it helps.

edited Jun 23 '21 at 03:41

abatishchev

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answered Dec 19 '15 at 21:32

Alireza Sanaee

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score 0 · Answer 3 · edited Dec 17 '17 at 11:23

0

It won't work with unity because that is for .Net 3.5. (https://github.com/jwt-dotnet/jwt)

Unity is still using .Net 2.0 @ version 5.2

edited Dec 17 '17 at 11:23

YukiNyaa

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answered Dec 25 '15 at 09:43

Masayoshi Uehara

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How to use JSON Web Token (JWT) in Unity 3d?

3 Answers3