When I use gpg --symmetric --s2k- and press tab some options appear: --s2k-cipher-algo --s2k-count --s2k-digest-algo --s2k-mode What do those options do?
I thinking about GPG, is very widely used, but is secure? Why and where we using GPG? I found an article from 2002, but is very old.
I need a safety data exchange system. My idea was: Every person is getting an usb stick with a list of One-Time-Pads (random data by random.org). Each list/block of random data has an identifier ...