Whilst troubleshooting a production issue I'm trying to assert that an SSL web request I fire contains a certificate. We add the certificate to the request, but I would like to view the used certificate in Fiddler in the way I do see the certificate used by the server in the response using HTTPS decryption.
A test project fires a request to https://google.com and Fiddler reveals the server certificate (in the Raw response):
== Server Certificate ==========
[Subject]
CN=www.google.com, O=Google LLC, L=Mountain View, S=California, C=US
[Issuer]
CN=GTS CA 1O1, O=Google Trust Services, C=US
[Serial Number]
00ED7F80A1379302560800000000190DCD
[Not Before]
10/10/2019 22:56:23
[Not After]
02/01/2020 21:56:23
[Thumbprint]
5497AE80F516A69148B091D39E01A427835FB0FC
But no info like this on the request certificate can be found.
Does anyone know if and where info like this can be found for the request?
This is the code I use to fire the request, pointing to a self generated certificate for which I have the password:
var cert = new X509Certificate2(
fileName: "D:\\temp\\powershellcert.pfx",
password: "password1234",
keyStorageFlags: X509KeyStorageFlags.MachineKeySet);
HttpWebRequest Request = (HttpWebRequest)WebRequest.Create("https://google.com");
Request.ClientCertificates.Add(cert);
Request.UserAgent = "Client Cert Sample";
Request.Method = "GET";
HttpWebResponse Response = (HttpWebResponse)Request.GetResponse();