I recently learned about TrueCrypt and have been working on setting it up so that I can protect my personal files. I am using TrueCrypt 7.1a of course, and have a 128GB Flash drive dedicated to my encrypted file container. I have it set up as a self mounting drive with a portable version of TrueCrypt installed. In this way, I am able to plug the flash drive into any computer and mount it by typing in my encryption password. I have this setup and it is working great!
One aspect of all this that has been a bit confusing to me was the concept of disk headers. I know that it is important to back these up as it would beimpossible to access my media in the scenario of a corrupted disk header. I used TrueCrypt to make a backup of the disk header and have it backed up for safe keeping. I was wondering if it is necessary to backup the disk header periodically (to always have an updated version), or would this one copy suffice? Is the disk header something that changes as the file content of the encrypted container changes, or is it something static that will not change as long as I use the same flash drive with the current setup?
Additionally, I have been making a periodic full backup of my encrypted flash drive, by simply copying the entire encrypted file container over to my computer every few weeks. As it stands, the flash drive is the main file that I am updating constantly, and I have a period backup on my laptop. However, I would prefer to have the main file on my laptop and periodically backup to the flash drive. I was wondering how this would work with regards to the disk header. If I were to maintain a main file on my laptop, and backup the entire file container to the flash drive periodically, would the flash drive still maintain the disk header structure necessary for proper operation?
I am very new to all this, but I am very eager to learn. If I have done a poor job at explaining my questions, please let me know and I will try to correct this. Your help would be invaluable to me and much appreciated. Thank you.