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POiOS NSURLConnection with SSL: Accepting an expired self-signed certificate
 

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  1. POiOS NSURLConnection with SSL: Accepting an expired self-signed certificate
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    <p>I have a shipped app that uses the following code to secure an SSL connection using a self-signed certificate that is shipped with the app.</p> <pre><code>- (void) connection:(NSURLConnection *)conn willSendRequestForAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge { NSLog(@"didReceiveAuthenticationChallenge %@ FAILURES=%d", [[challenge protectionSpace] authenticationMethod], (int)[challenge previousFailureCount]); /* Setup */ NSURLProtectionSpace *protectionSpace = [challenge protectionSpace]; assert(protectionSpace); SecTrustRef trust = [protectionSpace serverTrust]; assert(trust); CFRetain(trust); // Make sure this thing stays around until we're done with it NSURLCredential *credential = [NSURLCredential credentialForTrust:trust]; /* Build up the trust anchor using our root cert */ int err; SecTrustResultType trustResult = 0; err = SecTrustSetAnchorCertificates(trust, certs); if (err == noErr) { err = SecTrustEvaluate(trust,&amp;trustResult); } CFRelease(trust); // OK, now we're done with it // http://developer.apple.com/library/mac/#qa/qa1360/_index.html BOOL trusted = (err == noErr) &amp;&amp; ((trustResult == kSecTrustResultProceed) || (trustResult == kSecTrustResultConfirm) || (trustResult == kSecTrustResultUnspecified)); // Return based on whether we decided to trust or not if (trusted) { [[challenge sender] useCredential:credential forAuthenticationChallenge:challenge]; } else { NSLog(@"Trust evaluation failed for service root certificate"); [[challenge sender] cancelAuthenticationChallenge:challenge]; } } </code></pre> <p>Unfortunately, I made a huge oversight. SSL certificates expire. So when the expiry date passes I'm assuming the app is going to stop working properly! There's nothing I can do for the current version of the app - that's going to stop working soon.</p> <p>I need to release an update and in order to avoid this in the future I would like to allow the self-signed certificate even if it has expired. </p> <p>How do I modify my code above to trust the certificate even if it has expired?</p>
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    1. COIs is good enough to simply accept `kSecTrustResultRecoverableTrustFailure` as another acceptable trust result?
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