public Keys GetKeys()
{
ulong n = p * q;
ulong Eiler = (p - 1) * (q - 1);
ulong OpenKey;
ulong[] RandomStorage;
List <ulong> Random = new List <ulong>();
string StringRandomRange = "1";
int EilerLength = Eiler.ToString().Length;
for (int i = 0; i < EilerLength / 2; ++i)
{
StringRandomRange += "0";
}
ulong RandomRange = Eiler - Convert.ToUInt64(StringRandomRange);
for (ulong i = RandomRange; i <= Eiler; ++i)
{
if (1 == Euclid.FindGSD(i, Eiler))
{
Random.Add(i);
}
}
RandomStorage = Random.ToArray();
Random rand = new Random();
OpenKey = RandomStorage[rand.Next(0, RandomStorage.Length)];
ulong SecretKey = ExtendedEuclid.FindReverse(OpenKey, Eiler);
Keys keys = new Keys();
keys.openKey = OpenKey;
keys.secretKey = SecretKey;
return(keys);
}
private void hideMessage_Click(object sender, EventArgs e)
{
ulong[] CodedText = Coding.Encoding(Message);
ulong hash = Hash.GetHash(CodedText, OpenKey, Module);
ulong[] RandomStorage;
List <ulong> Random = new List <ulong>();
string StringRandomRange = "1";
int EilerLength = Module.ToString().Length;
for (int i = 0; i < EilerLength / 2; ++i)
{
StringRandomRange += "0";
}
ulong RandomRange = Module - Convert.ToUInt64(StringRandomRange);
for (ulong i = RandomRange; i < Module; ++i)
{
if (1 == Euclid.FindGSD(i, Module))
{
Random.Add(i);
}
}
RandomStorage = Random.ToArray();
Random rand = new Random();
ulong k = RandomStorage[rand.Next(0, RandomStorage.Length)];
reverseK = ExtendedEuclid.FindReverse(k, Module);
HidedMessage = (hash * ExpByModule.Exponentiation(k, OpenKey, Module)) % Module;
}
private void button2_Click(object sender, EventArgs e)
{
ElGamal elG = new ElGamal(P, G, X);
ulong K = elG.GetK();
ulong[] CodedText = Coding.Encoding(Message);
ulong hash = Hash.GetHash(CodedText, OpenKey, P);
ulong a = ExpByModule.Exponentiation(G, K, P);
ulong reverseK = ExtendedEuclid.FindReverse(K, P - 1);
ulong b;
for (ulong i = 1; ; ++i)
{
if (hash == ((X * a + i * K) % (P - 1)))
{
b = i;
break;
}
}
ulong[] sign = new ulong[2];
sign[0] = a;
sign[1] = b;
Signature = sign;
}
