/// <summary>
/// 복호화 Decrypt - Encrypt_HexString To string
/// </summary>
/// <param name="input"></param>
/// <param name="key_HexString"></param>
/// <param name="iv_HexString"></param>
/// <returns></returns>
public static string Decrypt_String(string input, string key_HexString, string iv_HexString)
{
string HexString = String_Convertor.ByteHexToHexString(AES128.Decrypt(String_Convertor.HexStringToByteHex(input), String_Convertor.HexStringToByteHex(key_HexString), String_Convertor.HexStringToByteHex(iv_HexString)));
byte[] bytes_output = String_Convertor.HexStringToByteHex(HexString);
return(System.Text.Encoding.UTF8.GetString(bytes_output));
}
/// <summary>
/// 입력된 값으로 userpermit을 생성하여 반환
/// </summary>
/// <param name="mid"></param>
/// <param name="mkey"></param>
/// <param name="hwid"></param>
/// <param name="iv"></param>
/// <returns></returns>
public static string GetUserpermit(string mid, string mkey, string hwid, string iv = "00000000000000000000000000000000")
{
//String To HEX
byte[] IV = String_Convertor.HexStringToByteHex(iv);
byte[] M_ID = String_Convertor.HexStringToByteHex(mid);
byte[] M_KEY = String_Convertor.HexStringToByteHex(mkey);
byte[] HW_ID = String_Convertor.HexStringToByteHex(hwid);
//암호화
//Encrypred HW ID = Aes(HW_ID, M_KEY, IV)
byte[] Encrypred_HW_ID = AES128.Encrypt(HW_ID, M_KEY, IV);
//String To HEX
string strEncrypred_HW_ID = String_Convertor.ByteHexToHexString(Encrypred_HW_ID);
//Checksum = CRC32(EncrypredHWID)
string checksum = CRC32.StringToCRC32(strEncrypred_HW_ID).ToString("X2");
return(strEncrypred_HW_ID + checksum + mid);
}
/// <summary>
/// 암호화 Encrypt - string To Decrypt_String
/// </summary>
/// <param name="input"></param>
/// <param name="key_HexString"></param>
/// <param name="iv_HexString"></param>
/// <returns></returns>
public static string Encrypt_String(string input, string key_HexString, string iv_HexString)
{
byte[] bytes_input = System.Text.Encoding.UTF8.GetBytes(input);
input = String_Convertor.ByteHexToHexString(bytes_input);
return(String_Convertor.ByteHexToHexString(AES128.Encrypt(String_Convertor.HexStringToByteHex(input), String_Convertor.HexStringToByteHex(key_HexString), String_Convertor.HexStringToByteHex(iv_HexString))));
}