HttpWebRequest - C# - Post with Certificate.crt + private.key

Question

How can I send a certificate with Private.key? I am sending only the certificate and it returns a 403 Forbidden error.

Certificate + Private.key

GetAccessToken Code

PegarCertificadoServicoPeloIndividuo - Code

Answer 1

I had the exact same problem with this API.

To solve it, I had to ''merge'' the two files (.crt and .key).

For this, it is necessary to download a program, follow this link: https://slproweb.com/products/Win32OpenSSL.html . I downloaded the exe from the first line from that link.

After merging the .crt and .key files, you'll get a .pfx file, that's what you'll use in code to make the call to the API.

Hope this helps