/* this function encrypts a message,
* there are four inputs to this function: a 128-bit key, a 128-bit iv, a message, the message length in bytes
* one output from this function: ciphertext
*/
void stuffCiphertext(Byte[] key, Byte[] iv, Byte[] message, Byte[] ciphertext, UInt64 msglength)
{
HC128_State state = new HC128_State();
/*initializing the state*/
Initialization(state, ConvertUtil.ConvertBytesToUInt32s(key), iv);
/*encrypt a message*/
EncryptMessage(state, message, ciphertext, msglength);
}