Messages in this thread |  | | | Date | Tue, 3 Jan 2012 01:14:39 +0400 | | From | Cyrill Gorcunov <> | | Subject | Re: [patch 1/4] Add routine for generating an ID for kernel pointer |
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On Mon, Jan 02, 2012 at 01:18:13PM +0100, bastien ROUCARIES wrote: > Le Saturday 31 December 2011 08:51:02, Cyrill Gorcunov a écrit : > > On Fri, Dec 30, 2011 at 06:51:37PM -0500, KOSAKI Motohiro wrote: > > ... > > > > > >Guys, this become more and more complex, finally I fear someone > > > >propose to do ideal hashing run-time ;) Maybe we can step back and > > > >live with root-only and plain pointers here? I'm not sure who else > > > >might need such facility except us, and if once there will be a > > > >candidate -- we could take a look on hashing again and provide safe > > > >hashes there. No? > > > > > > But recently kernel security fashion are, we don't expose a kernel > > > pointer at all even though the file is root only. I'm not sure how > > > much effective such fashion. but you seems run opposite way. > > > > > > I doubt user land can implement good comparison way. Why you gave up > > > Andrew's sys_are_these_files_the_same() idea? > > By memory, it seems that fuse expose kernel pointer encrypting it with tea. > Tea is simple and quick you should get a glimpse at it. >
I've been advised to try aes as well with random cookie as a key. I'll take a look once I've time to. Thanks!
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