(Swift 3,4,5...) Load any format Ed25519 Key

Demonstrates how to load any format Ed25519 private or public key.

Note: Chilkat began support for Ed25519 keys in version 9.5.0.83

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

    // A private key, regardless of type or format (RSA, EC, DSA, Ed25519) can be loaded by
    // calling LoadAnyFormat or LoadAnyFormatFile.

    // Likewise, a public key, regardless of type or format can be loaded by calling
    // LoadFromFile or LoadBd.

    // For example:
    let privKey = CkoPrivateKey()!

    // Pass an empty password if not needed.
    var password: String? = ""
    var success: Bool = privKey.loadAnyFormatFile("qa_data/eddsa/ed25519.pem", password: password)

    // For example, an encrypted PKCS8 key of any type (Ed25519, RSA, EC, etc.)
    password = "secret"
    success = privKey.loadAnyFormatFile("qa_data/rsa/pkcs8.key", password: password)

    // The same for public keys..
    // (public keys never have nor need passwords)
    let pubKey = CkoPublicKey()!
    success = pubKey.load(fromFile: "qa_data/pubkeys/pubkey_pkcs1.der")

}