Bug 455063

Summary:	Add support for XTS (and possibly other algorithms) encryption
Product:	[Fedora] Fedora	Reporter:	Piotr Krawiec <piotr.krawi>
Component:	anaconda	Assignee:	David Lehman <dlehman>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	low
Version:	rawhide
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
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Clone Of:		Environment:
Last Closed:	2008-08-26 22:25:41 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	461697

Description Piotr Krawiec 2008-07-11 19:05:44 UTC

Fedora 9 introduced ability to encrypt partitions in installer - AFAIR it's
lrw-benbi encryption. It also asks for password if currently encrypted partition
is detected, as to continue installation with it available. 

Now, I have an LVM setup with my PV encrypted using xts-benbi. Partition gets
detected, I'm asked for my passphrase and then an error occurs. I guess that
installer environment simply lacks needed module(s).

Support for algorithms other than lrw-benbi should be added, then users could
install Fedora on their already-set partitions.

I have no idea if initramfs supports anything other than lrw-benbi, but it
should also be found out and (if there's no support) resolved.

Comment 1 David Lehman 2008-08-26 17:53:40 UTC

We should probably handle preexisting devices with these other ciphers, and I think the mkinitrd support should not be a problem, but for device creation we will, for the time being, keep it simple and stick with aes-cbc-essiv:sha256.

Comment 2 Piotr Krawiec 2008-08-26 18:44:56 UTC

I've successfully deployed Fedora 9 on mentioned LVM-PV-xts-benbi partition setup using Fedora 9 Live CD, so it seems Anaconda and mkinitrd already support custom schemes. That make me pretty sure it's only about including various crypt modules in standard installer environment.

Comment 3 David Lehman 2008-08-26 18:52:35 UTC

That's right -- the cipher mode is stored in the LUKS header, so cryptsetup can determine it without any trouble. All we need to do is include the modules in the installer's runtime environment and make sure they get loaded.

Comment 4 David Lehman 2008-08-26 22:25:41 UTC

The lrw and xts modules should be in trees composed with anaconda-11.4.1.30-1 and later.

Please reopen if this is not resolved in the aforementioned tree.