mlvea / swift-home-playground

My Swift playgrounds. Learners come play.

swift-crypto-playgrounds

01 One Time Pad

Swift function for Crypto one time pad

func XOR(message: String, key: String) -> String? {
    let keyUtf8 = [UInt8](key.utf8)
    return String(bytes: map(enumerate(message.utf8)){ (index,element) in
        element ^ keyUtf8[index]
    }, encoding: NSUTF8StringEncoding)!
  }