public bool readKeyStorage(string keyFile)
{
try
{
using (StreamReader sr = new StreamReader(keyFile))
{
string line = sr.ReadToEnd();
string[] element = line.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
for (int i = 0; i < element.Length; i++)
{
switch (element[i])
{
case "PUBLIC_KEY:": PUBLIC_KEY = BigInteger.Parse(element[i + 1], NumberStyles.AllowHexSpecifier); break;
case "SECRET_KEY:": SECRET_KEY = BigInteger.Parse(element[i + 1], NumberStyles.AllowHexSpecifier); break;
case "N:": N = BigInteger.Parse(element[i + 1], NumberStyles.AllowHexSpecifier); break;
// Chinese Remainder Theorem
case "p:": p = BigInteger.Parse(element[i + 1], NumberStyles.AllowHexSpecifier); break;
case "q:": q = BigInteger.Parse(element[i + 1], NumberStyles.AllowHexSpecifier); break;
}
}
if (p < q)
{
MathUlti.swapBigInteger(ref p, ref q);
}
dP = MathUlti.moduloInverse(PUBLIC_KEY, p - 1);
dQ = MathUlti.moduloInverse(PUBLIC_KEY, q - 1);
qInv = MathUlti.moduloInverse(q, p);
KEY_SIZE = (N.ToByteArray().Length) * 8;
}
Debug.showLog("dP", dP);
Debug.showLog("dQ", dQ);
Debug.showLog("N", N);
Debug.showLog("KEY_SIZE", KEY_SIZE);
Debug.showLog("PUBLIC_KEY", PUBLIC_KEY);
Debug.showLog("SECRET_KEY", SECRET_KEY);
return(true);
}
catch (Exception e)
{
Debug.showLog("func readKeyStorage", e.Message);
return(false);
}
}
private void generateKeyPair()
{
p = MathUlti.generatePrime(KEY_SIZE / 2);
q = MathUlti.generatePrime(KEY_SIZE / 2);
if (p < q)
{
MathUlti.swapBigInteger(ref p, ref q);
}
N = BigInteger.Multiply(p, q);
n = BigInteger.Multiply(p - 1, q - 1);
PUBLIC_KEY = 65537;//MathUlti.getPublicKey(KEY_SIZE, n);
SECRET_KEY = MathUlti.moduloInverse(PUBLIC_KEY, n);
dP = MathUlti.moduloInverse(PUBLIC_KEY, p - 1);
dQ = MathUlti.moduloInverse(PUBLIC_KEY, q - 1);
qInv = MathUlti.moduloInverse(q, p);
Debug.showLog("dP", dP);
Debug.showLog("dQ", dQ);
Debug.showLog("N", N);
Debug.showLog("PUBLIC_KEY", PUBLIC_KEY);
Debug.showLog("SECRET_KEY", SECRET_KEY);
}