Protecting Directory Trees with gpgdir

gpgdir uses GNU Privacy Guard (GnuPG) to encrypt and decrypt files or a directory tree. You could accomplish the same objective by tarring the filesystem up and then encrypting the tar.gz file with GnuPG, but then you would still have to shred or wipe every file in the original directory tree. With gpgdir the whole tree is encrypted in one command. Do you use gpgdir? What do you think about it? This article goes through everything you need to encrypt and data on your system.