(Swift) Transition from RandomizeKey to GenRandomBytesENC

Provides instructions for replacing deprecated RandomizeKey method calls with GenRandomBytesENC.

Note: This example requires Chilkat v11.0.0 or greater.

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func chilkatTest() {
    let crypt = CkoCrypt2()!

    crypt.cryptAlgorithm = "aes"
    crypt.cipherMode = "cbc"
    crypt.keyLength = 256
    // ...

    // ------------------------------------------------------------------------
    // The RandomizeKey method is deprecated:

    // Generates and sets a random 32-byte (256-bit) secret key.
    crypt.randomizeKey()

    // ------------------------------------------------------------------------
    // Do the equivalent using GenRandomBytesENC followed by SetEncodedKey

    crypt.encodingMode = "base64"
    var randomKeyBase64: String? = crypt.genRandomBytesENC(32)
    crypt.setEncodedKey(randomKeyBase64, encoding: "base64")

}