File/Folder Encryption
I'm confused! I am currently using a program called Safehouse Explorer to secure some files. It apparently uses "Twofish 256-bit encryption", which makes it hard for someone to "decrypt". It works on the virtual drive principle: you start the program, put in a password and it opens the virtual drive so you can work on your files. When you've finished, you close the files and close the program and the "drive" morphs back to a .sdsk file.
My question is, if all I need is a password to get into the program and therefore the files, where does the encryption come into the equation? If I use a weak password, having that encryption will mean nothing. Conversely, if I use a really strong password, why the need for "encryption"?
Another program that has good reviews is Folder Lock, but it appears to use the same system. Great encryption but once again it relies on a password.
Any insight from the floor on the relationship between encryption and passwords would be appreciated.