lkml.org 
[lkml]   [2010]   [Nov]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH v1.3 4/4] keys: add new key-type encrypted
Date
Mimi Zohar <zohar@linux.vnet.ibm.com> wrote:

> > Why do you allow the master key to be supplied by a user-defined key rather
> > than requiring a trusted-key unconditionally?
>
> This is for systems without a TPM. The logic needs to exist, whether it
> is here or in EVM. By doing it here, a user could provide a passphrase
> in the initramfs, which is used to decrypt the encrypted key.

I thought that might be the case. In which case, it might be better to allow
someone to add a trusted key, supplying both encrypted and unencrypted
versions of the data so that the TPM need not be consulted. You might want to
mark such a key so that it can be seen when it is dumped.

But if you're going to use a user-defined key, you really need to prefix the
description with something suitable.

David


\
 
 \ /
  Last update: 2010-11-12 22:27    [W:0.595 / U:0.332 seconds]
©2003-2014 Jasper Spaans. Advertise on this site