file handling issues

[Leo Carnovale]

On Saturday, 7 September 2013 13:58:43 UTC+10, Michael Torrie  wrote:
> On 09/06/2013 09:05 PM, Leo Carnovale wrote:
> 
> > Ah and one other thing! What is this crypto algorithm you speak of? I
> 
> > desperately need some sort of encryption as at the moment anyone can
> 
> > simply open the text file and change the numbers to numbers that
> 
> > work! Where can I learn more about it?
> 
> 
> 
> There are two kinds of cryptography, generally.  Symmetric and
> 
> asymmetric.  Your needs will dictate which system you use.  Symmetric
> 
> cryptography means that the sake encryption key that was used to encrypt
> 
> the data is used to decrypt it.  Asymmetric cryptography basically means
> 
> one key is used to encrypt a message and another key is used to decrypt
> 
> the message.
> 
> 
> 
> In your case, perhaps symmetric encryption is most logical, though I'm
> 
> not at all clear what you are doing.  However you'll have to embed the
> 
> encryption key in your python source code, which isn't hidden at all.
> 
> And actually any program that embeds a symmetric key in its code can be
> 
> cracked rather easily.
> 
> 
> 
> Python has many libraries to support encryption.  Some are in the
> 
> standard library.  Search for python and crypto to see what docs are
> 
> available.  You might want to read up on basic cryptography principles
> 
> as well.

Thanks! Obviously, I need to do a lot of research.