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From: "Benoît Canet" <benoit.canet@irqsave.net>
To: "Daniel P. Berrange" <berrange@redhat.com>
Cc: "Benoît Canet" <benoit.canet@irqsave.net>,
	kwolf@redhat.com, qemu-devel@nongnu.org, stefanha@redhat.com
Subject: Re: [Qemu-devel] QCOW2 cryptography and secure key handling
Date: Tue, 23 Jul 2013 15:21:04 +0200	[thread overview]
Message-ID: <20130723132104.GC5002@irqsave.net> (raw)
In-Reply-To: <20130723130053.GW2477@redhat.com>

> > Do you (the block maintainers) have an idea on how the code could be improved
> > to securely pass the crypto key to the QCOW2 code ?
> 
> More generally, QCow2's current encryption support is woefully inadequate
> from a design POV. If we wanted better encryption built-in to QEMU it is
> best to just deprecate the current encryption support and define a new
> qcow2 extension based around something like the LUKS data format. Using
> the LUKS data format precisely would be good from a data portability
> POV, since then you can easily switch your images between LUKS encrypted
> block device & qcow2-with-luks image file, without needing to re-encrypt
> the data.

Thanks I will read the LUKS specification.

Best regards

Benoît

  reply	other threads:[~2013-07-23 13:19 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-23 12:47 [Qemu-devel] QCOW2 cryptography and secure key handling Benoît Canet
2013-07-23 13:00 ` Daniel P. Berrange
2013-07-23 13:21   ` Benoît Canet [this message]
2013-07-23 14:40   ` Benoît Canet
2013-07-23 15:22     ` Stefan Hajnoczi
2013-07-23 15:38       ` Kevin Wolf
2013-07-23 15:57         ` Daniel P. Berrange
2013-07-24 13:07           ` Benoît Canet
2013-07-24 15:30           ` Paolo Bonzini
2013-07-24 15:33             ` Daniel P. Berrange
2013-07-24 15:40               ` Paolo Bonzini
2013-07-24 15:46                 ` Daniel P. Berrange
2013-07-29 11:21             ` Markus Armbruster
2013-07-29 11:25               ` Kevin Wolf
2013-07-29 11:32                 ` Daniel P. Berrange
2013-07-29 16:07                   ` Benoît Canet
2013-07-31 15:33               ` Benoît Canet
2013-07-31 15:27             ` Benoît Canet
2013-07-31 17:52               ` Laszlo Ersek
2013-07-31 18:31                 ` Laszlo Ersek
2013-07-23 15:40       ` Daniel P. Berrange

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