(Swift) Use Installed Cert on Windows for TLS Client Authentication

Demonstrates how to use a certificate that has already been installed on a Windows PC for TLS client authentication.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    let http = CkoHttp()

    var success: Bool

    //  On Windows, a pre-installed certificate can be loaded in a number of different ways.
    //  This example loads by the common name:
    let cert = CkoCert()
    var success: Bool = cert.LoadByCommonName("My ECA Medium Assurance Identity Certificate")
    if success != true {
        print("\(cert.LastErrorText)")
        return
    }

    //  Make sure this certificate has a private key available.
    //  It should be a private key such that when the certificate was installed, it was marked as "exportable"
    //  so that authorized programs are able to access the private key.
    if cert.HasPrivateKey() != true {
        print("A private key is needed for TLS client authentication.")
        print("This certificate has no private key.")
        return
    }

    //  Set the certificate to be used for mutual TLS authentication
    //  (i.e. sets the client-side certificate for two-way TLS authentication)
    success = http.SetSslClientCert(cert)
    if success != true {
        print("\(http.LastErrorText)")
        return
    }

    //  At this point, the HTTP object instance is setup with the client-side cert, and any SSL/TLS
    //  connection will automatically use it if the server demands a client-side cert.

}