lkml.org 
[lkml]   [2018]   [Jul]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 0/4][RFC v2] Introduce the in-kernel hibernation encryption
From
Date
On Di, 2018-07-24 at 00:23 +0800, Yu Chen wrote:
>
> Good point, we once tried to generate key in kernel, but people
> suggest to generate key in userspace and provide it to the
> kernel, which is what ecryptfs do currently, so it seems this
> should also be safe for encryption in kernel.
> https://www.spinics.net/lists/linux-crypto/msg33145.html
> Thus Chun-Yi's signature can use EFI key and both the key from
> user space.

Hi,

ecryptfs can trust user space. It is supposed to keep data
safe while the system is inoperative. The whole point of Secure
Boot is a cryptographic system of trust that does not include
user space.

I seriously doubt we want to use trusted computing here. So the
key needs to be generated in kernel space and stored in a safe
manner. As we have a saolution doing that, can we come to ausable
synthesis?

Regards
Oliver

\
 
 \ /
  Last update: 2018-07-26 09:39    [W:0.273 / U:6.544 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site