saashd

//: Updated code as of Nov 5 2017
import UIKit

let text = UInt8
let cipher = UInt8

var encrypted = UInt8

// encrypt bytes
for (i,e) in text.enumerated() {
encrypted.append(e ^ cipher[i])
}

var decrypted = UInt8

// decrypt bytes
for (i,e) in encrypted.enumerated() {
decrypted.append(e ^ cipher[i])
}

String(bytes: decrypted, encoding: String.Encoding.utf8)