public void TestMergeSimple()
{
for (var i = 0; i < 50000; i++)
{
var udf1 = new PaillierAggregateSum();
var udf2 = new PaillierAggregateSum();
var udf3 = new PaillierAggregateSum();
var Nsq = RandomBytes();
var p1 = RandomBytes();
var p2 = RandomBytes();
var p3 = RandomBytes();
var p4 = RandomBytes();
udf1.Init();
udf1.Accumulate(p1, Nsq);
udf1.Accumulate(p2, Nsq);
udf2.Init();
udf2.Accumulate(p3, Nsq);
udf2.Accumulate(p4, Nsq);
udf3.Init();
udf3.Accumulate(p1, Nsq);
udf3.Accumulate(p2, Nsq);
udf3.Accumulate(p3, Nsq);
udf3.Accumulate(p4, Nsq);
udf2.Merge(udf1);
Assert.Equal(udf2.Terminate().Buffer, udf3.Terminate().Buffer);
}
}
public void TestMergeEncryption()
{
for (var i = 0; i < 100; i++)
{
var algorithm = new Paillier
{
KeySize = 384
};
BigInteger expectedSum = 0;
var Nsq = new SqlBytes(algorithm.KeyStruct.NSquare.ToByteArray());
var udf1 = new PaillierAggregateSum();
udf1.Init();
for (var j = 0; j < 100; j++)
{
var value = new BigInteger(rnd.Next(1000000)) / new BigInteger(Math.Pow(10, rnd.Next() % 8));
if (rnd.Next(2) == 0) // randomly change signs
{
value = -value;
}
expectedSum += value;
var value_enc = new SqlBytes(algorithm.EncryptData(value));
udf1.Accumulate(value_enc, Nsq);
}
Assert.Equal(expectedSum, algorithm.DecryptData(udf1.Terminate().Buffer));
}
}