Re: [PATCH v6 00/11] Intel SGX Driver

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Jan 09, 2018 at 03:50:23PM -0600, Dr. Greg Wettstein wrote:
> > Everything going out of L1 gets encrypted. This is done to defend
> > against peripheral like adversaries and should work also against
> > meltdown.
> 
> I don't believe this is an architecturally correct assertion.  The
> encryption/decryption occurs at the 'bottom' of the cache heirarchy.

You are right and I was wrong. It is plain from L1 to LLC, which implies
as you correctly described potential cache missing attacks in addition
to timing attacks.

/Jarkko
--
To unsubscribe from this list: send the line "unsubscribe linux-doc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux