It sounds like you just need to sign each file and store a db of all the signatures so you can verify them later. Unless you think you need to go through and do format verification of each file to ...

Third-party programs are widely used on Windows and other operating systems. But how can you tell if a program is safe to install or not? How can you be so sure that the program file you are going to ...

Did you download a large file? Or do you have a file that you have a suspicion about? The best way to ensure the file comes from a verified source is by measuring its checksum. A checksum is almost ...