A few weeks ago I ran quickly through a demonstration of how to use gnupg to encrypt a file and decrypt it again.
The purpose being, to transfer personal information across the Internet, or even just to keep it safe from accidental discovery.
ccrypt does much the same thing — in fact, it might be even better suited to the purpose.
One command dedicated to encrypting, one dedicated to decrypting, and a few flags here and there to give you flexibility.
Compared to gnupg, this is much simpler to use.
I don’t know enough to tell you if ccrypt is a better encryption method than gnupg, but it seems to do the job, as you can see above.
Personally I plan to give this a few attempts, and see if I draw any attention from undesirables.