public Key AddOwnSecretKey(Key key)
{
if (KnownAlgorithm == Algorithm.ECC)
{
var eccKey = (ECCKey)key;
var keyPair = (ECCKey)KeyPair;
eccKey.OpenKey = ECCPoint.Multiply(keyPair.PrivateKey, eccKey.OpenKey);
return(eccKey);
}
if (KnownAlgorithm == Algorithm.RSA)
{
}
return(key);
}
/// <summary>
/// Key = Na x Pa x Pb x ... x Pi
/// Where Pi = Ni x G
/// </summary>
/// <param name="allPersons"></param>
/// <returns></returns>
private BigInteger GenerateSymetricWithECC(List <Person> allPersons)
{
var keyPair = (ECCKey)KeyPair;
var symmetricKey = keyPair.Copy();
//get key = i x G, where i -> count of persons
symmetricKey.OpenKey = ECCPoint.Multiply(allPersons.Count, keyPair.G);
//get key = Na x i x G
symmetricKey.OpenKey = ECCPoint.Multiply(keyPair.PrivateKey, symmetricKey.OpenKey);
//now each person have to add own key
foreach (var person in allPersons)
{
//Key = Na x i x G x Na x Nb x ... x Ni
person.AddOwnSecretKey(symmetricKey);
}
var left = symmetricKey.OpenKey.X.ToByteArray();
var right = symmetricKey.OpenKey.Y.ToByteArray();
var key = left.Concat(right).ToArray();
return(new BigInteger(key));
}
static void Main(string[] args)
{
var keyPaillier = PaillierManager.Default.GenerateKey();
//var test = PaillierManager.Default.EncryptNumber(1, keyPaillier);
//var resTest = PaillierManager.Default.DecryptNumber(test, keyPaillier);
string paillierLog = "";
StartTimer();
mpz_t sumPaillier = PaillierManager.Default.EncryptNumber(0, keyPaillier);
for (var i = 0; i <= 10000; i++)
{
var newNumber = PaillierManager.Default.EncryptNumber(i + 1, keyPaillier);
sumPaillier = PaillierManager.Default.Multiply(sumPaillier, newNumber, keyPaillier);
if (i % 100 == 0)
{
var time = StopWatch.Elapsed;
paillierLog += $"({i}) - {time.Minutes}:{time.Seconds}.{time.Milliseconds:000}" + Environment.NewLine;
}
}
StopTimer();
StartTimer();
var m = PaillierManager.Default.DecryptNumber(sumPaillier, keyPaillier);
var time2 = StopWatch.Elapsed;
paillierLog += $"(decrypt) - {time2.Minutes}:{time2.Seconds}.{time2.Milliseconds:000}" + Environment.NewLine;
StopTimer();
var file = new FileWriter();
file.Write(paillierLog);
System.Console.WriteLine(paillierLog);
//System.Console.WriteLine(m.ToString());
//System.Console.ReadKey();
var numbers = new[] { 1, 2, 3 };
//var sum = numbers.Sum();
var keyEcc = ECCManager.Default256.GenerateKey();
var s1 = ECCManager.Default256.EncryptNumber(numbers[0], keyEcc.OpenKey);
var s2 = ECCManager.Default256.EncryptNumber(numbers[1], keyEcc.OpenKey);
var s3 = ECCManager.Default256.EncryptNumber(numbers[2], keyEcc.OpenKey);
var sResRight = s1.Right + s2.Right + s3.Right;
var sResLeft = s1.Left + s2.Left + s3.Left;
var res = sResRight - ECCPoint.Multiply(keyEcc.PrivateKey, sResLeft);
StartTimer();
List <ECCPoint> rightParts = new List <ECCPoint>(1000);
List <ECCPoint> leftParts = new List <ECCPoint>(1000);
ECCPoint sumRight = null;
ECCPoint sumLeft = null;
string eccLog = "";
for (var i = 0; i <= 10000; i++)
{
var encryptedNumber = ECCManager.Default256.EncryptNumber(i + 1, keyEcc.OpenKey);
rightParts.Add(encryptedNumber.Right);
leftParts.Add(encryptedNumber.Left);
if (i == 2)
{
sumRight = rightParts[0] + rightParts[1];
sumLeft = leftParts[0] + leftParts[1];
}
if (i > 2)
{
sumRight = sumRight + encryptedNumber.Right;
sumLeft = sumLeft + encryptedNumber.Left;
}
if (i % 100 == 0)
{
var time = StopWatch.Elapsed;
eccLog += $"({i}) - {time.Minutes}:{time.Seconds}.{time.Milliseconds:000}" + Environment.NewLine;
}
}
StopTimer();
StartTimer();
var result = sumRight - ECCPoint.Multiply(keyEcc.PrivateKey, sumLeft);
var time1 = StopWatch.Elapsed;
eccLog += $"(decrypt) - {time1.Minutes}:{time1.Seconds}.{time1.Milliseconds:000}" + Environment.NewLine;
StopTimer();
file.Write(eccLog);
System.Console.WriteLine(eccLog);
//var s1 = ECCManager.Default.EncryptNumber(numbers[0], keyPairs.OpenKey);
//var s2 = ECCManager.Default.EncryptNumber(numbers[1], keyPairs.OpenKey);
//var s3 = ECCManager.Default.EncryptNumber(numbers[2], keyPairs.OpenKey);
//var sResRight = s1.Right + s2.Right + s3.Right;
//var sResLeft = s1.Left + s2.Left + s3.Left;
//var res = sResRight - ECCPoint.Multiply(keyPairs.PrivateKey, sResLeft);
//var sumPoint = ECCPoint.Multiply(sum, keyPairs.G);
//if (res == sumPoint)
//{
// System.Console.WriteLine("Correct");
//}
var end = System.Console.ReadKey();
}
