public BigNumber(string data, string format)
{
fBigNum = OpenSSL.BN_new();
if (format.ToLower() == "d")
{
OpenSSL.BN_dec2bn(ref fBigNum, Encoding.ASCII.GetBytes(data));
}
else if (format.ToLower() == "x")
{
OpenSSL.BN_hex2bn(ref fBigNum, Encoding.ASCII.GetBytes(data));
}
else
{
throw new FormatException();
}
}
