/**
* 解密算法
*
* @param cryptograph
* :密文,带","
* @param d
* 私钥
* @param n
* @param numBit
* 位数
* @return
* @
*/
public static String decrypt(String cryptograph, BigInteger d,
BigInteger n, int numBit)
{
String[] chs = cryptograph.Split(' ');
if (chs == null || chs.GetLength(0) <= 0)
{
throw new Exception("密文不符合要求!!!");
}
int numeroToken = chs.GetLength(0);
BigInteger[] StringToByte = new BigInteger[numeroToken];
for (int i = 0; i < numeroToken; i++)
{
StringToByte[i] = new BigInteger(chs[i], 16);
}
byte[][] encodeM = RSAUtil.dencodeRSA(StringToByte, d, n);
byte[] sendMessage = RSAUtil.StringToByte(encodeM);
//String message = new String(sendMessage, "UTF-8");
string message = System.Text.Encoding.Default.GetString(sendMessage);
String result = System.Web.HttpUtility.UrlDecode(message, Encoding.UTF8);//.UrlDecode.decode(message, "UTF-8");
return(result);
}
