I'm building an integration to a third party webservice, and wanted to implement Two Way SSL Certificates based on this article
We started out using Digicert certificates, but after many hours of investigation by the network team, it seems Salesforces does not have the necessary root and/or intermediate certificates in their keystore to support the Digicert certificates.
Once we switched to Verisign Certificates, it worked just fine.
If you end up here, hopefully our experience will lessen the injuries caused by banding your head on a table...unless someone else has been able to use Digicert?
