public static BigPolyArray[] GetEncryptedDataInBatches(EncCal encCal, Pgm picture, int size = 3)
{
var encryptedData = new BigPolyArray[picture.Length * size];
Parallel.For(0, picture.Length, l =>
{
int slotCount = encCal.CrtBuilder.SlotCount;
var values1 = new BigUInt[encCal.CrtBuilder.SlotCount];
var values2 = new BigUInt[encCal.CrtBuilder.SlotCount];
var values3 = new BigUInt[encCal.CrtBuilder.SlotCount];
Parallel.For(0, slotCount, i =>
{
values1[i] = new BigUInt(encCal.GetBitCount(), 0);
values2[i] = new BigUInt(encCal.GetBitCount(), 0);
values3[i] = new BigUInt(encCal.GetBitCount(), 0);
});
Parallel.For(0, picture.Width, i =>
{
values1[i].Set(picture.Data[(l * picture.Length) + i]);
values2[i + 1].Set(picture.Data[(l * picture.Length) + i]);
values3[i + 2].Set(picture.Data[(l * picture.Length) + i]);
});
encryptedData[size * l] = encCal.GetEnc(encCal.CrtBuilder.Compose(values1.ToList()));
encryptedData[size * l + 1] = encCal.GetEnc(encCal.CrtBuilder.Compose(values2.ToList()));
encryptedData[size * l + 2] = encCal.GetEnc(encCal.CrtBuilder.Compose(values3.ToList()));
});
return(encryptedData);
}
static void Main(string[] args)
{
//var location = args[0];
//var InputFileName = args[1];
Pgm Picture = new Pgm(location + InputFileName);
EncCal encCal = new EncCal("1x^4096 + 1", 4096, 40961, 12, 10);
var encryptedDataBat = GetEncryptedDataInBatches(encCal, Picture);
var binForm = new BinaryFormatter();
using (TcpClient client = new TcpClient(SERVER_IP, PORT_NO))
{
using (NetworkStream nwStream = client.GetStream())
{
//Fixing the buffer size - not mandatory
client.ReceiveBufferSize = 131116;
binForm.Serialize(nwStream, encryptedDataBat.Length);
Wait(nwStream, binForm);
//Send public key
SendEncryptedArray(new BigPolyArray[] { encCal.GetPublicKey() }, nwStream, binForm);
//Send encrypted data
SendEncryptedArray(encryptedDataBat, nwStream, binForm);
//Receive results
BigPolyArray[] encryptedResults = ReceiveEncryptedArray(encryptedDataBat.Length / 3, client, nwStream, binForm);
byte[] results;
//Decrypte data
GetResults(Picture, "edg", encryptedResults, encCal, location, InputFileName, out results);
Console.ReadLine();
client.Close();
}
}
Console.WriteLine("Press return to exit.");
Console.ReadLine();
}
static byte[] GetByteFromEnc(BigPolyArray[] valList, EncCal encCal, Pgm picture, int divisor = 1, int offsetLeft = 0)
{
var ret = new byte[picture.Length * picture.Width];
int slotCount = encCal.CrtBuilder.SlotCount;
Parallel.For(0, valList.Length, l =>
{
var values = new List <BigUInt>(slotCount);
var plain = encCal.GetDecrypted(valList[l]);
encCal.CrtBuilder.Decompose(plain, values);
Parallel.For(0, picture.Width, i =>
{
double val = Convert.ToDouble(values[i + offsetLeft].ToDecimalString()) / divisor;
ret[l * picture.Width + i] = Convert.ToByte(val < 0 || val > 40000 ? 0 : val > 255 ? 255 : val);
});
});
return(ret);
}
public static void GetResults(Pgm picture, string name, BigPolyArray[] encArr,
EncCal encCal, string location, string InputFileName, out byte[] decArr)
{
decArr = GetByteFromEnc(encArr, encCal, picture);
picture.Save(location + "e_" + name + "_" + InputFileName, decArr);
}
