Swift

Load a Private Key from a File (Any Format)

Demonstrates the Chilkat PrivateKey.LoadAnyFormatFile method, which loads a private key from a file by inspecting its contents. The first argument is the file path and the second is the password (used if the detected key is encrypted).

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own key file.

Background: This is the most convenient loader of all — point it at a key file whose format you do not know and it detects and loads it, whether PKCS #1/#8, encrypted PKCS #8, PEM, JWK, XML, or a Microsoft format. It is the pragmatic default for applications that accept keys from users or varied sources; use a format-specific loader only when you want to enforce a particular expected format.

Chilkat Swift Downloads

Download Chilkat for Swift

Swift


func chilkatTest() {
    var success: Bool = false

    //  Demonstrates the PrivateKey.LoadAnyFormatFile method, which loads a private key from a file by
    //  inspecting its contents.  The 1st argument is the file path and the 2nd is the password (used
    //  if the detected key is encrypted).

    let privKey = CkoPrivateKey()!

    //  The key password is not hard-coded in a real application; obtain it from an interactive
    //  prompt, environment variable, or a secrets vault.
    var password: String? = "myKeyPassword"

    //  This is the most convenient loader when the file's exact format is unknown: Chilkat inspects
    //  the content and handles PKCS #1/#8, encrypted PKCS #8, PEM, JWK, XML, Microsoft formats, etc.
    success = privKey.loadAnyFormatFile(path: "qa_data/some_private_key", password: password)
    if success == false {
        print("\(privKey.lastErrorText!)")
        return
    }

    print("Loaded a \(privKey.keyType!) private key.")

}