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Re: [Qemu-devel] qemu-img create encryption

From: Markus Armbruster
Subject: Re: [Qemu-devel] qemu-img create encryption
Date: Thu, 27 Jun 2013 09:27:52 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux)

"Hamilton, Peter A." <address@hidden> writes:

> I've been doing some work with qemu-img and encrypted qcow2 images and have
> noticed that "qemu-img create" does not prompt for a password to encrypt new
> images, defaulting (from the documentation I've read) to the empty string as
> a password. Why does "qemu-img create" work this way?
> I haven't been able to find any good, authoritative sources on this topic,
> so if anyone knows of good documentation or rationale, please let me know.

No answer to your question (sorry), but here goes anyway: in my opinion,
the QCOW2 encryption feature is amateur encryption, which should not be
used for anything worth encrypting in the first place.

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