The certificate for this server is invalid

Question

I know that if I use following nsurlconnectiondelegate it will be fixed

– connection:willSendRequestForAuthenticationChallenge: – connection:canAuthenti

Answer 1

The webserver which you are using is asking for Server Trust Authentication, you need to properly respond with the appropriate action. You need to implement connection:willSendRequestForAuthenticationChallenge: delegate method and use SecTrustRef to authenticate it.

More information can be found here:- https://developer.apple.com/library/ios/technotes/tn2232/_index.html

This was my code to fix error:

- (void)connection:(NSURLConnection *)connection willSendRequestForAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
{
    NSURLProtectionSpace *protectionSpace = [challenge protectionSpace];

    id sender = [challenge sender];

    if ([[protectionSpace authenticationMethod] isEqualToString:NSURLAuthenticationMethodServerTrust])
    {
        SecTrustRef trust = [[challenge protectionSpace] serverTrust];

        NSURLCredential *credential = [[NSURLCredential alloc] initWithTrust:trust];

            [sender useCredential:credential forAuthenticationChallenge:challenge];
    }
    else
    {
        [sender performDefaultHandlingForAuthenticationChallenge:challenge];
    }
}