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User level instructions for modern qcow2 encryption?

From: Jakob Bohm
Subject: User level instructions for modern qcow2 encryption?
Date: Wed, 31 Mar 2021 11:53:07 +0200
User-agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:4.8) Goanna/20210302 Interlink/52.9.7731

A few versions ago, qcow2 encryption was completely redesigned based on LUKS full disc encryption instead of the old ad-hoc design in older qcow2 versions.

However, looking in the end user documentations (mostly man pages), I have been unable to find coherent high level documentation directed at qemu users (as opposed to design documents for qemu developers).

Main questions:

1. From what minimum qemu released version (corresponding to official tarballs) is the modern qcow2 encryption and its user interface (qemu-* command lines and human monitor commands) fully implemented and stable?

2. Where can I find a complete configuration example using only qemu-* binaries (not libvirt, proxmox or other high level wrappers)?


Jakob Bohm, CIO, Partner, WiseMo A/S.  https://www.wisemo.com
Transformervej 29, 2860 Søborg, Denmark.  Direct +45 31 13 16 10
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