Swift

Export a Public Key as XML

Demonstrates the Chilkat PublicKey.GetXml method, which returns the public key in Chilkat XML format. It takes no arguments; the exact representation (for example an RSAPublicKey element) depends on the key type.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: The XML key format comes from the .NET/XML-DSIG world; exporting to it lets you hand a public key to .NET code or a system built around XML signatures. It is the inverse of LoadXml-style loading. Because a public key is not secret, this XML can be shared freely.

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Swift


func chilkatTest() {
    var success: Bool = false

    //  Load a public key to export.  LoadFromFile inspects the content, so it accepts DER, PEM, XML,
    //  JWK, and other supported representations.
    let pubKey = CkoPublicKey()!
    success = pubKey.load(fromFile: "qa_data/public.pem")
    if success == false {
        print("\(pubKey.lastErrorText!)")
        return
    }

    //  Export the public key in Chilkat XML format.  The representation depends on the key type (for
    //  example an RSAPublicKey element for RSA).
    var xml: String? = pubKey.getXml()
    if pubKey.lastMethodSuccess == false {
        print("\(pubKey.lastErrorText!)")
        return
    }

    print("\(xml!)")

}