lkml.org 
[lkml]   [2012]   [Mar]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [dm-devel] [PATCH] dm: remake of the verity target


On Tue, 20 Mar 2012, Mandeep Singh Baines wrote:

> But we are hashing fixed-sized blocks so there is no possibility of extension.

If the first part of some block contains some security-sensitive data and
the last part of the same block can be attacker-controlled, he can use the
collision attack to change the security-sensitive data.

> However, better safe than sorry. I guess we'll just have to deal with
> backward incompatibility. So feel free to add my sign off to the new
> patch also.
>
> Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
>
> Regards,
> Mandeep
>
> > Mikulas

I can introduce a switch to make it accept the old format. Do you want to?

Mikulas


\
 
 \ /
  Last update: 2012-03-21 04:47    [W:0.064 / U:10.516 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site