Here is an example of getting tokem using WSTrustChannelFactory. From here.
var stsBinding = new WS2007HttpBinding();
stsBinding.Security.Mode = SecurityMode.Tra
Use the ClientCertificate property:
var stsBinding = new WS2007HttpBinding();
stsBinding.Security.Mode = SecurityMode.TransportWithMessageCredential;
stsBinding.Security.Message.EstablishSecurityContext = false;
stsBinding.Security.Message.NegotiateServiceCredential = false;
// select the authentication mode of Client Certificate
stsBinding.Security.Message.ClientCredentialType = MessageCredentialType.Certificate;
var wifChannelFactory = new WSTrustChannelFactory(stsBinding, stsEndpoint);
wifChannelFactory.TrustVersion = TrustVersion.WSTrust13;
// Supply the credentials
wifChannelFactory.Credentials.ClientCertificate.Certificate = config.Certificate;
The PFX you can import to your certificate store via the certmgr.msc snapin. Make sure that the account your application is running as has access to the private key. You can reference it in the store using the x509certificate2 classes.