public static string Decryption(string cipher, string key, IBlockCipherPadding padding)
{
BlowFishEncryptor encriptor = new BlowFishEncryptor();
encriptor.SetPadding(padding);
return(encriptor.Decrypt(cipher, key));
}
public static string Encryption(string plain, string key, IBlockCipherPadding padding)
{
BlowFishEncryptor encriptor = new BlowFishEncryptor();
encriptor.SetPadding(padding);
return(encriptor.Encrypt(plain, key));
}
public static string GetCryptFileName(long oid, string fileName)
{
string blowfish_key = "f)y$JQM+o!s]jk9#t,ST#,c" + oid.ToString("000000000");
string cryptname = BlowFishEncryptor.Encryption(fileName, blowfish_key);
char[] invalidChars = Path.GetInvalidFileNameChars();
//char[] invalidChars = new char[invalidFileChars.Length + 1];
invalidChars = (invalidChars ?? Enumerable.Empty <char>()).Concat(new[] { '+' }).ToArray();
string regex = String.Format("[{0}]", new string(invalidChars));
Regex removeInvalidChars = new Regex(regex, RegexOptions.Singleline | RegexOptions.Compiled | RegexOptions.CultureInvariant);
return(removeInvalidChars.Replace(cryptname, "X"));
}