Create signature in c# returns "invalid signature"

Description
I am using framework .NET 5.0 to host a meeting in Zoom.
WebSDK is used.
Zoom pro account is used
Jwt already created and used

There’s an error “invalid signature” when it is created using C# example. I have tried create the meeting manually in Zoom Account, then join the meeting and the error happen again.

Error
Invalid signature when C# example
When I use ZoomMtg.generateSignature in client works fine.

Which version?
1.8.6

**Device

  • Browser: Chrome

I have followed these links without luck:

Any help will be great

Thanks

Hey @amc ,

Can you please provide your Web SDK signature for a test meeting so I can help you debug it? :slight_smile:

Thanks,
Tommy

Hello @tommy the signature is:

These are the error messages:

Thanks!

Any idea, seems the signature added here is gone. I share another one:

Z21xNVItTFJSVGlmTVRTRWgydVBzUS44MjUyNzE5NDMwNS4xNjExODU5NzU4NzM5LjEuZG9XS21IZEgrS1dFV2g0S0NLSWQzTk9sTXdCMlZrNko0OVYzWFFMOFFvVT0

Still having problems to host or join a meeting. This signature is to create one as a host.

Thanks!!

Hey @amc ,

Your signature looks correct. Let me ask you this, are you trying to start a meeting you own, or a meeting that is owned outside of your account?

More info here:

Thanks,
Tommy

Hi @tommy I have tried start (host) then join a meeting using my API Key and API Secret.

Also I have tried join a meeting created manually using zoom portal

Using a schedule meeting:

Using Host a meeting directly in the menu:

Both without success yet.

Please your comments

Thanks!

Hey @amc ,

I am going to send you a private message so we can assist further.

Thanks,
Tommy

For others reference, I am sharing the solution here per @amc :

I just saw in the documentation that these couple of lines were added:

string msgHashPreHmac = System.Convert.ToBase64String (messageBytesTest);
byte[] messageBytes = encoding.GetBytes (msgHashPreHmac);

So I added and tested, now I am able to host and join meetings :sunglasses: !

Thanks,
Tommy

1 Like

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.