What is a way i can encode information into a binary file using BinaryWriter. Without anybody being able to see the information.
What i am creating needs to be able to load a binary file (& read it using BinaryReader) and interpret the data.
So for example i had a set of instructions like
op1
op2 variable
op3
op4 string "Hello World"
How can i put that and other files into a binary file without anybody seeing the data.
Depends on how secure you need it to be.
I am using a zip-stream just to wave off curios onlookers....
EDIT: An example for an xml-file
public void save( String filename )
{
XmlSerializer s = new XmlSerializer( this.GetType( ) );
MemoryStream w = new MemoryStream( 4096 );
TextWriter textWriter = new StreamWriter( w );
s.Serialize( textWriter, this );
FileStream f = new FileStream( filename, FileMode.CreateNew );
DeflateStream zipStream = new DeflateStream( f, CompressionMode.Compress );
byte[] buffer = w.GetBuffer( );
zipStream.Write( buffer, 0, buffer.Length );
zipStream.Close( );
textWriter.Close( );
w.Close( );
f.Close( );
}
hth
Mario
You will need to do a few steps. First, save the binary file, which it sounds like you've got a handle on. After the file has been written to disk, you will want to encrypt it. Check the answer to this question for instructions. When opening the file, you will decrypt it first, and then use your BinaryReader to populate your app state.
Use serialization (BinaryFormatter class), your data won't be human-readable (although it's not strong level of protection); or use encryption (CryptoStream class).
