static public string Decryptionstr(byte[] file, string key)
{
try
{
var data = Encoding.UTF8.GetString(file);
Int32 aa = Convert.ToInt32(key);
int y = key.Length;
long t = hashing(aa, y);
var finalKey = t.ToString();
encrypt er = new encrypt();
var en_file = er.Decrypt(data, t.ToString("D8"));
return(en_file);
}
catch (CryptographicException e)
{
Console.WriteLine(e.ToString());
return(null);
}
}
static public byte[] Encryption(byte[] file, string key)
{
try
{
var data = Encoding.UTF8.GetString(file);
Int32 aa = Convert.ToInt32(key);
int y = key.Length;
long t = hashing(aa, y);
encrypt er = new encrypt();
var en_file = er.crypt(t.ToString("D8"), file);
var enc = er.Encrypt(data, t.ToString("D8"));
var dec = er.Decrypt(enc, t.ToString("D8"));
//return encryptedData;
return(en_file);
}
catch (CryptographicException e)
{
Console.WriteLine(e.Message);
return(null);
}
}