qusal/salt/sys-pgp

sys-pgp

PGP operations through Qrexec in Qubes OS.

Table of Contents

• Description
• Installation
• Access Control
• Usage

Description

Creates a PGP key holder named "sys-pgp", it will be the default target for split-gpg and split-gpg2 calls for all qubes. Keys are stored in "sys-pgp", and access to them is made from the client through Qrexec.

Installation

• Top:

qubesctl top.enable sys-pgp
qubesctl --targets=tpl-sys-pgp,sys-pgp state.apply
qubesctl top.disable sys-pgp

• State:

qubesctl state.apply sys-pgp.create
qubesctl --skip-dom0 --targets=tpl-sys-pgp state.apply sys-pgp.install
qubesctl --skip-dom0 --targets=sys-pgp state.apply sys-pgp.configure

Install on the client template:

qubesctl --skip-dom0 --targets=tpl-qubes-builder,tpl-dev state.apply sys-pgp.install-client

The client qube requires the split GPG client service to be enabled:

qvm-features QUBE service.split-gpg2-client

Access Control

Default policy: any qube can ask via the @default target if you allow it to use split-gpg in sys-pgp.

Allow the work qubes to access sys-pgp, but not other qubes:

qubes.Gpg2 * work   sys-pgp  ask default_target=sys-pgp
qubes.Gpg2 * work   @default ask target=sys-pgp default_target=sys-pgp
qubes.Gpg2 * @anyvm @anyvm   deny

qubes.Gpg * work   sys-pgp  ask default_target=sys-pgp
qubes.Gpg * work   @default ask target=sys-pgp default_target=sys-pgp
qubes.Gpg * @anyvm @anyvm   deny

Usage

Consult upstream documentation on how to use split-gpg.