WCF Custom Certificate Validator: How to call built-in chain trust validation on top of your custom validation?

Question

Hi, I have a custom validator that does validation based on the thumbprint of the client cert. How can I still call the in-built chain trust validator or perform chain trust validation?

Thanks.

Answer 1

http://www.leastprivilege.com/CertificateBasedAuthenticationAndWCFMessageSecurity.aspx