public void DecryptFile()
{
#region Code for decrypting a file
byte[] PasswordBytes = new UnicodeEncoding().GetBytes(Password.ToCharArray());
byte[] KeyBytes;
RijndaelManaged Crypter = new RijndaelManaged();
KeyBytes = new GenerateIV(Password).Get256bitIV();
Crypter.BlockSize = KeyBytes.Length * 8;
FileStream ReadSBN = new FileStream(string.Format("{0}{1}", ConfigurationSettings.AppSettings["AllEntityLocation"] + ConfigurationSettings.AppSettings["DecryptionFolder"], FileName + "_2." + ConfigurationSettings.AppSettings["SecureExtension"]), FileMode.Open, FileAccess.Read);
FileStream WriteSTF = new FileStream(string.Format("{0}{1}", ConfigurationSettings.AppSettings["AllEntityLocation"] + ConfigurationSettings.AppSettings["DecryptionFolder"], FileName + "_3." + ConfigurationSettings.AppSettings["SecureBinTemporaryExtension"]), FileMode.Create, FileAccess.Write);
CryptoStream WriteDecrypted = new CryptoStream(WriteSTF, Crypter.CreateDecryptor(PasswordBytes, KeyBytes), CryptoStreamMode.Write);
for (int index = 0; index < ReadSBN.Length; ++index)
{
byte data = (byte)ReadSBN.ReadByte();
WriteDecrypted.WriteByte(data);
}
WriteDecrypted.Close();
WriteSTF.Close();
ReadSBN.Close();
#endregion
}
public void ExecuteEncrypt(string FileName, string password)
{
byte[] passwordBytes = new UnicodeEncoding().GetBytes(password);
byte[] keyBytes;
FileStream ReadSTF = new FileStream(ConfigurationSettings.AppSettings["AllEntityLocation"] + ConfigurationSettings.AppSettings["EncryptionFolder"] + FileName + "_2" + "." + ConfigurationSettings.AppSettings["SecureBinTemporaryExtension"], FileMode.Open, FileAccess.Read);
RijndaelManaged Encrypter = new RijndaelManaged();
GenerateIV generateIV = new GenerateIV(password);
keyBytes = generateIV.Get256bitIV();
Encrypter.BlockSize = keyBytes.Length * 8;
FileStream WriteSBN = new FileStream(ConfigurationSettings.AppSettings["AllEntityLocation"] + ConfigurationSettings.AppSettings["EncryptionFolder"] + FileName + "_Enc." + ConfigurationSettings.AppSettings["SecureExtension"], FileMode.Create, FileAccess.Write);
CryptoStream EncryptStream = new CryptoStream(WriteSBN, Encrypter.CreateEncryptor(passwordBytes, keyBytes), CryptoStreamMode.Write);
for (int index = 0; index < ReadSTF.Length; ++index)
{
byte data = (byte)ReadSTF.ReadByte();
EncryptStream.WriteByte(data);
}
EncryptStream.Close();
WriteSBN.Close();
ReadSTF.Close();
}
