public string Decrypting(string Source, string Key)
{
string text = string.Empty;
try
{
byte[] array = Convert.FromBase64String(Source);
Stream arg_3A_0 = new MemoryStream(array, 0, array.Length);
DESCryptoServiceProvider expr_1C = new DESCryptoServiceProvider();
byte[] legalKey = FcEncode.GetLegalKey(expr_1C, Key);
expr_1C.Key = legalKey;
expr_1C.IV = legalKey;
ICryptoTransform transform = expr_1C.CreateDecryptor();
text = new StreamReader(new CryptoStream(arg_3A_0, transform, CryptoStreamMode.Read)).ReadToEnd();
}
catch
{
string result = Guid.NewGuid().ToString();
return(result);
}
if (text.Length > 0)
{
string[] array2 = text.Split(new char[]
{
','
});
byte[] array3 = new byte[array2.Length - 1];
for (int i = 0; i < array2.Length - 1; i++)
{
array3[i] = (byte)Convert.ToInt32(array2[i], 16);
}
return(Encoding.Unicode.GetString(array3));
}
return(Guid.NewGuid().ToString());
}
public string Encrypting(string Source, string Key)
{
string result;
try
{
byte[] arg_11_0 = Encoding.Unicode.GetBytes(Source);
string text = string.Empty;
byte[] array = arg_11_0;
for (int i = 0; i < array.Length; i++)
{
byte value = array[i];
text = text + Convert.ToString(value, 16) + ",";
}
byte[] bytes = Encoding.ASCII.GetBytes(text);
MemoryStream memoryStream = new MemoryStream();
DESCryptoServiceProvider expr_59 = new DESCryptoServiceProvider();
byte[] legalKey = FcEncode.GetLegalKey(expr_59, Key);
expr_59.Key = legalKey;
expr_59.IV = legalKey;
ICryptoTransform cryptoTransform = expr_59.CreateEncryptor();
CryptoStream cryptoStream = new CryptoStream(memoryStream, cryptoTransform, CryptoStreamMode.Write);
cryptoStream.Write(bytes, 0, bytes.Length);
cryptoStream.FlushFinalBlock();
byte[] buffer = memoryStream.GetBuffer();
int num = 0;
while (num < buffer.Length && buffer[num] != 0)
{
num++;
}
memoryStream.Close();
cryptoStream.Close();
cryptoTransform.Dispose();
result = Convert.ToBase64String(buffer, 0, num);
}
catch
{
result = string.Empty;
}
return(result);
}
