public RemoteGroup(string primeString, string generatorString)
{
SHA1Managed sha1 = new SHA1Managed();
generator = new BigInteger(2);
byte[] primeBytes = RemotePassword.getBytes(primeString);
prime = new BigInteger(1, primeBytes);
byte[] generatorBytes = generator.ToByteArray();
int pad = primeBytes.Length - generatorBytes.Length;
byte[] buffer = new byte[primeBytes.Length + Math.Max(0, pad) + generatorBytes.Length];
Array.Copy(primeBytes, 0, buffer, 0, primeBytes.Length);
Array.Copy(generatorBytes, 0, buffer, primeBytes.Length + Math.Max(0, pad), generatorBytes.Length);
byte[] kBytes = sha1.ComputeHash(buffer);
k = new BigInteger(1, kBytes);
}
public virtual void encodeBigDecimal(Decimal bd)
{
int scale;
Decimal temp;
ConvertToScaledDecimal(bd, out scale, out temp);
if (temp.CompareTo(long.MinValue) > 0 && temp.CompareTo(long.MaxValue) < 0)
encodeLong((long)temp, scale);
else
{
BigInteger bi = new BigInteger(Decimal.Truncate(Math.Abs(temp)).ToString(), 10);
byte[] byteArray = bi.ToByteArray();
write(edsScaledCount2);
write(scale);
write(bd.CompareTo(Decimal.Zero));
write(byteArray.Length);
write(byteArray);
}
}
public virtual void encodeOldBigDecimal(decimal bd)
{
int scale;
Decimal temp;
ConvertToScaledDecimal(bd, out scale, out temp);
int neg = bd.CompareTo(decimal.Zero) == -1 ? 1 : 0;
// The server expects a byte array with a signed first byte.
// BigInteger.toByteArray() creates an array of the value in two's compliment.
// So get the unsigned value and set the sign bit manually.
BigInteger bi = new BigInteger(Decimal.Truncate(Math.Abs(temp)).ToString(), 10);
byte[] byteArray = bi.ToByteArray();
if (neg == 1)
{
byteArray[0] |= 0x80;
}
write(edsScaledCount1);
write(byteArray.Length + 1);
write(scale);
write(byteArray);
}
public static string getHex(BigInteger number)
{
return getHex(number.ToByteArray());
}