rgpgfs 💾 🔐

PoC: PGP/GPG-enciphered view of plain directories

Mounting & unmounting does not require setuid, sudo, root ...

Build

Run make after installing libfuse and gpgme.

Debian / Ubuntu

apt-get install libfuse3-dev libgpgme-dev
make

Docker 🐳

docker build -t rgpgfs .
docker run --rm -it --device /dev/fuse \
    --cap-add SYS_ADMIN rgpgfs

You may need to add --security-opt apparmor:unconfined.

Usage

rgpgfs -r [fingerprint] [mountpoint]
# or
rgpgfs --recipient=[fingerprint] [mountpoint]
# or
rgpgfs -o recipient=[fingerprint] [mountpoint]

rgpgfs will refuse to encrypt with untrusted keys. See gpg -k [fingerprint].

Example

Mount encrypted view of / in ~/rgpgfs:

$ rgpgfs --recipient 1234567890ABCDEF1234567890ABCDEF12345678 ~/rgpgfs

$ ls -1 ~/rgpfs/var/log/syslog.*
/home/me/rgpgfs/var/log/syslog.gpg
/home/me/rgpgfs/var/log/syslog.1.gpg
/home/me/rgpgfs/var/log/syslog.2.gz.gpg
/home/me/rgpgfs/var/log/syslog.3.gz.gpg

$ gpg --decrypt --for-your-eyes-only /home/me/rgpgfs/var/log/syslog.gpg | wc -l
gpg: encrypted with 4096-bit RSA key, ID 89ABCDEF12345678, created 2019-03-30
      "someone <someone@somewhere.me>"
3141

Change source directory

rgpgfs -o modules=subdir -o subdir=/source/dir /mount/point

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