public List <EIGamalMessage> Encrypt(byte [] message, EIGamalPublicKey public_key, RandomNumberGenerator random)
{
List <BigInteger> messages = null;
//TODO convert byte [] to from group
return(Encrypt(messages, public_key, random));
}
private List <EIGamalMessage> Encrypt(List <BigInteger> messages, EIGamalPublicKey public_key, RandomNumberGenerator random)
{
//Encryption
List <EIGamalMessage> messages_encrypted = new List <EIGamalMessage>();
foreach (BigInteger message in messages)
{
BigInteger y = random.RandomPositiveBigIntegerBelow(public_key.Q); // ephemeral key a unique one for every message
BigInteger s = public_key.H.Pow(y); //Shared secret
messages_encrypted.Add(new EIGamalMessage(public_key.G.Pow(y), message * s));
}
return(messages_encrypted);
}
