New article on Intel's 3DXP

Article: Intel’s Plans for 3DXP DIMMs Emerge
By: Adrian (a.delete@this.acm.org), December 11, 2018 5:42 am
Room: Moderated Discussions
Howard Chu (hyc.delete@this.symas.com) on December 11, 2018 4:17 am wrote:
>
> Will definitely be interesting to follow this issue going forward. It looks like
> MRAM is poised to replace SRAM for on-chip caches, down the road. Encrypting cache
> contents would quite impractical.
>
> http://www.eenewsanalog.com//news/mram-beats-sram-close-logic-caches
>
> https://www.eejournal.com/article/an-mram-cell-that-competes-with-sram/



Yes indeed, encrypting cache contents does not seem an acceptable solution.


Nevertheless, encryption is probably not needed in this case.


Unlike for external DIMMs, you cannot remove the caches from the system and examine them separately and there is no need for the caches to be persistent.


If the CPU will always automatically clear the caches during power-up and during power-down, that should be enough.


To work around that, you should be able to remove the supply voltage instantly from the processor while it was in use by its owner, than to decapsulate it and use some very expensive tool to determine the states of the bits in the caches.


Even if this is not completely impossible, it is outside the range of abilities of a normal thief.

If someone that could do that would be interested in your cache content, then you would be a surveillance target and you should fear other much simpler methods of watching what you do.





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TopicPosted ByDate
New article on Intel's 3DXPDavid Kanter2018/07/23 10:02 AM
  New article on Intel's 3DXPGroo2018/07/23 01:53 PM
    New article on Intel's 3DXPMichael S2018/07/23 02:47 PM
  New article on Intel's 3DXPTeemo2018/07/23 05:38 PM
    New article on Intel's 3DXPWes Felterw2018/07/23 09:41 PM
    Flash DIMMs = bad ideaDavid Kanter2018/07/24 04:31 AM
      Flash DIMMs = bad ideaEmil Briggs2018/07/24 06:30 AM
        Flash DIMMs = bad ideaDavid Kanter2018/07/24 06:49 AM
          Flash DIMMs = bad ideaMichael S2018/07/24 06:59 AM
          Flash DIMMs = bad ideaEmil Briggs2018/07/24 08:29 AM
          Flash DIMMs = bad ideaDoug S2018/07/24 08:49 AM
            price Michael S2018/07/24 03:16 PM
              price Doug S2018/07/24 03:32 PM
                price Michael S2018/07/24 03:49 PM
            Flash DIMMs = bad ideablaine2018/12/03 04:40 PM
              Flash DIMMs = bad ideaWes Felter2018/12/04 12:07 PM
                Flash DIMMs = bad ideaRichardC2018/12/04 04:09 PM
        Flash DIMMs = bad ideaMichael S2018/07/24 06:51 AM
        Flash DIMMs = bad ideaAdrian2018/07/24 07:35 AM
          Flash DIMMs = bad ideaRicardo B2018/07/24 09:24 AM
        Flash DIMMs = bad ideabakaneko2018/07/24 06:55 PM
  New article on Intel's 3DXPEtienne2018/07/25 05:02 AM
  New article on Intel's 3DXPHoward Chu2018/12/01 06:23 AM
    New article on Intel's 3DXPMichael S2018/12/01 08:56 AM
      New article on Intel's 3DXPanon2018/12/01 09:21 AM
        New article on Intel's 3DXPHoward Chu2018/12/01 01:52 PM
          New article on Intel's 3DXPAdrian`2018/12/01 03:43 PM
            New article on Intel's 3DXPAdrian2018/12/01 11:05 PM
              New article on Intel's 3DXPHoward Chu2018/12/11 05:17 AM
                New article on Intel's 3DXPAdrian2018/12/11 05:42 AM
                New article on Intel's 3DXPMaynard Handley2018/12/11 08:20 AM
                  New article on Intel's 3DXPwumpus2018/12/11 09:36 AM
                  New article on Intel's 3DXPAnon2018/12/11 05:21 PM
                    New article on Intel's 3DXPMaynard Handley2018/12/11 05:32 PM
                      New article on Intel's 3DXPAnon2018/12/12 12:29 AM
                        New article on Intel's 3DXPMaynard Handley2018/12/12 11:32 AM
                          New article on Intel's 3DXPwumpus2018/12/12 12:07 PM
                            New article on Intel's 3DXPMaynard Handley2018/12/12 12:41 PM
                              New article on Intel's 3DXPAnon2018/12/12 03:55 PM
                          New article on Intel's 3DXPAnon2018/12/12 03:49 PM
                      New article on Intel's 3DXPAnne O. Nymous2018/12/12 01:14 AM
                        New article on Intel's 3DXPanon2018/12/12 06:28 AM
                        New article on Intel's 3DXPMaynard Handley2018/12/12 11:26 AM
                          New article on Intel's 3DXPAnne O. Nymous2018/12/12 02:10 PM
                      New article on Intel's 3DXPinnocent bystander2018/12/12 10:34 PM
                New article on Intel's 3DXPanon2018/12/12 02:42 PM
            New article on Intel's 3DXPHoward Chu2018/12/02 05:53 AM
              New article on Intel's 3DXPAdrian2018/12/02 07:01 AM
                New article on Intel's 3DXPHoward Chu2018/12/02 11:34 AM
                  Intel's 3DXP availabilityEtienne Lorrain2018/12/03 04:50 PM
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