Nsurlsession "Http Load Failed Kcfstreamerrordomainssl, -9813 ; Self Signing Certificate

NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802) error in https connection

As per the Apple tech note, App Transport Security requires SHA-2. The S3 (and CloudFront) certificates are using SHA-1, which is why this failure is occurring.

The workaround is to set the NSExceptionRequiresForwardSecrecy to false. (This is until AWS moves to SHA-2 (by September 30th, 2015)).

HTTP load failed in xcode version 9.3 ios 11 even after adding temporary exception on plist file

Here's the code from the linked answer in Swift. HTH.

class RequestHelper: NSObject, URLSessionDelegate {
    func makeRequest(request: URLRequest, completionHandler: @escaping (Data?, URLResponse?, Error?) ->() ) {
        let sessionConfiguration = URLSessionConfiguration.default
        let session = URLSession(configuration: sessionConfiguration, delegate: self, delegateQueue: nil)
        let task = session.dataTask(with: request) { data, response, error in
            completionHandler(data, response, error)
        }
        task.resume()
    }

    func urlSession(_ session: URLSession, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition,
        URLCredential?) -> () ) {
        guard
            challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodServerTrust,
            challenge.protectionSpace.host == "yourdomain.com",
            let trust = challenge.protectionSpace.serverTrust
        else {
            return
        }
        let credential = URLCredential(trust: trust)
        completionHandler(.useCredential, credential)
    }
}

Making HTTPS request in iOS 9 with self-signed certificate

This issue was solved some time ago. It turned out to be invalid self-signed certificate. It didn't meet all requirements from Apple. Unfortunately i don't know, what exactly it was.

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