Article: Intel’s Plans for 3DXP DIMMs Emerge
By: Howard Chu (hyc.delete@this.symas.com), December 2, 2018 10:34 am
Room: Moderated Discussions
Adrian (a.delete@this.acm.org) on December 2, 2018 6:01 am wrote:
> In its current form. AMD SME would not be applicable for NV DIMMs,
> because the encryption keys are not stored across resets.
>
> It would have to be modified to receive the encryption key from an external source, at boot time.
>
> Any form of storing the encryption keys inside, like in the existing SSDs with hardware encryption
> or in TPMs, is insecure by design and breaks the main assumption of cryptography.
Good point. Using a smart card or some other peripheral to securely host
the keys would make sense. And you can just ignore/overwrite the RAM content
at powerup if the key isn't provided.
The trick then is securely handling the key at bootup, before any other
system components have been initialized.
> In its current form. AMD SME would not be applicable for NV DIMMs,
> because the encryption keys are not stored across resets.
>
> It would have to be modified to receive the encryption key from an external source, at boot time.
>
> Any form of storing the encryption keys inside, like in the existing SSDs with hardware encryption
> or in TPMs, is insecure by design and breaks the main assumption of cryptography.
Good point. Using a smart card or some other peripheral to securely host
the keys would make sense. And you can just ignore/overwrite the RAM content
at powerup if the key isn't provided.
The trick then is securely handling the key at bootup, before any other
system components have been initialized.
| Topic | Posted By | Date |
|---|---|---|
| New article on Intel's 3DXP | David Kanter | 2018/07/23 09:02 AM |
| New article on Intel's 3DXP | Groo | 2018/07/23 12:53 PM |
| New article on Intel's 3DXP | Michael S | 2018/07/23 01:47 PM |
| New article on Intel's 3DXP | Teemo | 2018/07/23 04:38 PM |
| New article on Intel's 3DXP | Wes Felterw | 2018/07/23 08:41 PM |
| Flash DIMMs = bad idea | David Kanter | 2018/07/24 03:31 AM |
| Flash DIMMs = bad idea | Emil Briggs | 2018/07/24 05:30 AM |
| Flash DIMMs = bad idea | David Kanter | 2018/07/24 05:49 AM |
| Flash DIMMs = bad idea | Michael S | 2018/07/24 05:59 AM |
| Flash DIMMs = bad idea | Emil Briggs | 2018/07/24 07:29 AM |
| Flash DIMMs = bad idea | Doug S | 2018/07/24 07:49 AM |
| price | Michael S | 2018/07/24 02:16 PM |
| price | Doug S | 2018/07/24 02:32 PM |
| price | Michael S | 2018/07/24 02:49 PM |
| Flash DIMMs = bad idea | blaine | 2018/12/03 03:40 PM |
| Flash DIMMs = bad idea | Wes Felter | 2018/12/04 11:07 AM |
| Flash DIMMs = bad idea | RichardC | 2018/12/04 03:09 PM |
| Flash DIMMs = bad idea | Michael S | 2018/07/24 05:51 AM |
| Flash DIMMs = bad idea | Adrian | 2018/07/24 06:35 AM |
| Flash DIMMs = bad idea | Ricardo B | 2018/07/24 08:24 AM |
| Flash DIMMs = bad idea | bakaneko | 2018/07/24 05:55 PM |
| New article on Intel's 3DXP | Etienne | 2018/07/25 04:02 AM |
| New article on Intel's 3DXP | Howard Chu | 2018/12/01 05:23 AM |
| New article on Intel's 3DXP | Michael S | 2018/12/01 07:56 AM |
| New article on Intel's 3DXP | anon | 2018/12/01 08:21 AM |
| New article on Intel's 3DXP | Howard Chu | 2018/12/01 12:52 PM |
| New article on Intel's 3DXP | Adrian` | 2018/12/01 02:43 PM |
| New article on Intel's 3DXP | Adrian | 2018/12/01 10:05 PM |
| New article on Intel's 3DXP | Howard Chu | 2018/12/11 04:17 AM |
| New article on Intel's 3DXP | Adrian | 2018/12/11 04:42 AM |
| New article on Intel's 3DXP | Maynard Handley | 2018/12/11 07:20 AM |
| New article on Intel's 3DXP | wumpus | 2018/12/11 08:36 AM |
| New article on Intel's 3DXP | Anon | 2018/12/11 04:21 PM |
| New article on Intel's 3DXP | Maynard Handley | 2018/12/11 04:32 PM |
| New article on Intel's 3DXP | Anon | 2018/12/11 11:29 PM |
| New article on Intel's 3DXP | Maynard Handley | 2018/12/12 10:32 AM |
| New article on Intel's 3DXP | wumpus | 2018/12/12 11:07 AM |
| New article on Intel's 3DXP | Maynard Handley | 2018/12/12 11:41 AM |
| New article on Intel's 3DXP | Anon | 2018/12/12 02:55 PM |
| New article on Intel's 3DXP | Anon | 2018/12/12 02:49 PM |
| New article on Intel's 3DXP | Anne O. Nymous | 2018/12/12 12:14 AM |
| New article on Intel's 3DXP | anon | 2018/12/12 05:28 AM |
| New article on Intel's 3DXP | Maynard Handley | 2018/12/12 10:26 AM |
| New article on Intel's 3DXP | Anne O. Nymous | 2018/12/12 01:10 PM |
| New article on Intel's 3DXP | innocent bystander | 2018/12/12 09:34 PM |
| New article on Intel's 3DXP | anon | 2018/12/12 01:42 PM |
| New article on Intel's 3DXP | Howard Chu | 2018/12/02 04:53 AM |
| New article on Intel's 3DXP | Adrian | 2018/12/02 06:01 AM |
| New article on Intel's 3DXP | Howard Chu | 2018/12/02 10:34 AM |
| Intel's 3DXP availability | Etienne Lorrain | 2018/12/03 03:50 PM |
