Re: Cloud computing ( was Re: Linux Petition )
Duane Griffin <[email protected]>
| Newsgroups | gmane.user-groups.linux.london.gllug |
|---|---|
| Message-ID | <CAPt03owrShRn88A0vJk_raK0UfMqjU9=bMQ928VhfLL06ZSfjQ@mail.gmail.com> |
On 24 April 2012 11:30, John Edwards <[email protected]> wrote: > Data can be encrypted in storage (disks) and transit (network), but > I don't think it can be encrypted in memory if you want to use it. > > That means that a superuser on virtual host can read the memory > of any guest machine. That will include a lot of unencrypted > sensitive data, although it would not be easy to sort through. > > I'm not aware of any way of preventing this, but would happy to > be proved wrong. AIUI (and to be clear, I don't, really) this is an active research problem which probably *is* soluble, although not in anything approaching practical terms at this point in time. See http://crypto.stanford.edu/craig/easy-fhe.pdf, which I think was published in CACM a couple of years ago. > #---------------------------------------------------------# > | John Edwards Email: [email protected] | > #---------------------------------------------------------# Cheers, Duane. -- "I never could learn to drink that blood and call it wine" - Bob Dylan -- Gllug mailing list - [email protected] http://lists.gllug.org.uk/mailman/listinfo/gllug