InformationSecurityWorkshop.swift

inputkey.text = "keykeykeykeykeyk"
inputIv.text = "drowssapdrowssap"
orgiTextView.text = "helloworld"

 if
    // 先做 AES-128 encode
    let aes = try? AES(key: inputkey.text!, iv: inputIv.text!) ,
    let encrypted = try? aes.encrypt(orgiTextView.text!.bytes) ,
    // 再把結果用 base64 成文字顯示出來
    let EncData = encrypted.toBase64()
{
    crypTextView.text = EncData
}