I am looking for some resources about adding certificates to secure web service calls. What's required, how do I set up my iPhones and so on?
Are you talking about server cert validation or about self-signed cert authentication?
Both problems are solved using DidReceiveChallenge method. For server cert validation use challenge.ProtectionSpace.AuthenticationMethod == "NSURLAuthenticationMethodServerTrust" authentication method, for client - "NSURLAuthenticationMethodClientCertificate".
I don't really have a clue. Here is what we need. Our server side needs to validate that the iPhone that makes the web service (SOAP) call is a trust-able client. I only have a blur picture in my mind. We will distribute a certificate along with the app. When the app calls, it will pass the certificate along with the web request. I do need a sample to walk through the steps I should implement.
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