Hi,

I created an LTI application with .Net. I have tried different libraries to create OAuth 1.0 signature, but it never matches with the one comes from Canvas. I checked it with this tool: http://lti.tools/oauth/  and it matches with the OAuth signature I generated, however not with the "signature" parameter comes from Canvas.

URL: https://localhost:44397/default.aspx

Consumer Key: orhun-123

Shared Secret: orhun-123

Signature comes from Canvas:  z2tzUWURgkf6m56L7wrUyqe50wE=

Currently, I am using this code to generate the OAuth signature: 

OAuth-Signature-Validation-Tool/OAuthBase.cs at master · mashery/OAuth-Signature-Validation-Tool · G... 

Thank you,