Messages in this thread | | | Date | Tue, 16 Jan 2001 14:57:05 +0100 | From | Jamie Lokier <> |
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Ingo Molnar wrote: > struct native_file { > unsigned long master_fingerprint[8]; > unsigned long file_fingerprint[8]; > struct file file; > }; > > 'fingerprints' are 256 bit, true random numbers. master_fingerprint is > global to the kernel and is generated once per boot. It validates the > pointer of the structure. The master fingerprint is never known to > user-space. > > file_fingerprint is a 256-bit identifier generated for this native file. > The file fingerprint and the (kernel) pointer to the native file is > returned to user-space. The cryptographical safety of these 256-bit random > numbers guarantees that no breach can occur in a reasonable period of > time. It's in essence an 'encrypted' communication between kernel and > user-space.
Sounds similar to the Hurd...
-- Jamie - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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