Can anyone please give me a quick crash course on SSH and GPG?
What is the difference between public and private keys?
Should I back up my
~/.ssh/ directory, what are the security implications of doing so?
Again, difference between public and private keys.
What is an effective way to use GPG? Encrypt a text file containing information and then...what happens after that?
Is CAST5 (GPG default, I believe) secure?
If I don't use
gpg -c fileit starts asking for users. What is this? What do I enter here?
Are there any official
security.stackexchange.comthreads on learning security like this? Are there any one security in general, including not just this but maybe networking and cryptography and other things?