If i use the ‘sendSynchronousRequest’ api call, and if the certificate is trusted, will this API work?

The reason i ask is we already have an app which uses ‘sendSynchronousRequest’ and a customer is having issues with https.
What kind of certificate should the customer use? Which company?
Ultimately what certificate would enable this API – sendSynchronousRequest to work?

- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace {
  return [protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust];
}
 
- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {
  if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust])
    if ([trustedHosts containsObject:challenge.protectionSpace.host])
      [challenge.sender useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust] forAuthenticationChallenge:challenge];
 
  [challenge.sender continueWithoutCredentialForAuthenticationChallenge:challenge];
}

Note that connection:didReceiveAuthenticationChallenge: can send its message to challenge.sender (much) later, say from a delegate method of an SFCertificateTrustPanel.

for all the code that I am posting I am usually creating a new project and then put all that I am interested in into the app delegate. Then I’m looking at the output of NSLog statements. If it is free of errors and has the promised result then I copy/paste all relevant parts into pre sections to get the syntax highlighting.

So I have two problems with having download links: 1) there is no more to see that I am already showing, the rest is just a standard project. 2) if you where to take one of my sample projects and would have to go looking for which parts you need you would take more time reusing my code than by having the essentials before you and copy/pasting from there. 3) when I’m creating code that too complex for a blog post then I’m saving it for my “parts store” or MyAppSales.

Finally most of the time I’ll be using code that I thus discovered in MyAppSales and other projects like Kernseife. So if I propose category classes, most likely you can find them in one of these projects anyway. But your point is taken, if I do that the next time, I will mention from which public project you can copy the files.