I bought a copy of this book last week and although I'm only a few pages in I've learned a lot already.
The only thing with learning is that unless one can apply that knowledge then it's a bit of a waste of time. The one thing that has stuck in my head is that Linux doesn't care about file extensions. At first (being an old Windoze user) I thought there wasn't much point in this, how does Linux know how to open certain files? I'm using Ubuntu and indeed it does use file extensions as a recognizable way of opening files.
But there is an advantage of using this facility in Linux. Here's a quick method that I've been playing with.
- Open gedit and write a message.
- Save the file as a .mp3. Gedit will happily do that.
- Use AES Crypt to encrypt the .mp3 you just made.
- Rename the .aes file by removing the .aes extension.
- You now have an .mp3 file which is an encrypted text file.
- Share your file.
As I work my way through the book I'm hoping to find more useful nuggets that let me play with encryption processes.
That's all for now. Back to the book which I highly recommend.