Messages in this thread | | | Date | Sat, 19 Nov 2011 12:18:46 +0400 | From | Vasiliy Kulikov <> | Subject | Re: [PATCH v2 0/4] Checkpoint/Restore: Show in proc IDs of objects that can be shared between tasks |
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On Sat, Nov 19, 2011 at 12:10 +0400, Vasiliy Kulikov wrote: > Also, if one should have an ability to learn IDs of specific object > types and the set of types is very limited, it's much safer to have one > increasing u64 counter for each created object of one of these types. > The exposed to userspace data will be: > > ID = hash(counter ^ cookie)
Even hash(counter) without any cookie and counter is randomly generated at boot time.
-- Vasiliy Kulikov http://www.openwall.com - bringing security into open computing environments
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