Re: Time Stamp Counter

[Steven Bellovin <smb%cs.columbia.edu@localhost>]

On Oct 28, 2009, at 5:28 PM, David Laight wrote:

> On Wed, Oct 28, 2009 at 11:28:14AM -0700, Aran Clauson wrote:
> > All,
> >         The Time Stamp Counter is readable from use space.  Should
> > it be limited to the kernel?
>
> Not really, unless you are really paranoid.
I wonder -- could it be used in timing attacks against other process'  
crypto?

                --Steve Bellovin, http://www.cs.columbia.edu/~smb