/// <summary>
/// 解密
/// </summary>
/// <param name="cbc"></param>
/// <returns></returns>
private static string CBCDecode(string cbc)
{
SM4Utils sm4 = new SM4Utils();
sm4.secretKey = "JeF8U9wHFOMfs2Y8";
byte[] bytedata = Encoding.Default.GetBytes(cbc);
byte[] temp_iv = new byte[16];
byte[] file_bytedata = new byte[bytedata.Length - 16];
Array.Copy(bytedata, temp_iv, 16);
sm4.iv = Encoding.Default.GetString(temp_iv);
Array.Copy(bytedata, 16, file_bytedata, 0, (bytedata.Length - 16));
string plain_data = sm4.Decrypt_CBC(Encoding.Default.GetString(file_bytedata));
Console.WriteLine("解密结果是{0}", plain_data);
return(plain_data);
}
