On 15/03/18 15:26, Steven Maddox wrote: > > The desktop portion of that software has an OS/kernel level driver that > watches if you're trying to open a PGP encrypted file... then decrypts > it on the fly and finally passes it to the application that'd normally > open it.
... > If this doesn't exist in the main GnuPG project then I'd be happy to be > referred to any 3rd party bits of software (even if commercial or > proprietary) that could? > > I understand if the answer *should* be block-level encryption... but > they're intend on file-level. The obvious approach would be to write a FUSE driver. It would be mounted as an overlay filesystem, and this filesystem would decrypt the encrypted files on demand into a ramfs, and then re-encrypt (and shred) on file close. I saw a commercial product here that might do what you want, but the documentation is making my brain hurt: https://www.flam.de/issues/view.php?id=888 http://www.flam.de/en/technology/products/fluc/ -- Andrew Gallagher
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