* Use of inode for storing security info
@ 2011-09-23 18:18 Parag Amritkar
2011-09-23 23:47 ` Valdis.Kletnieks
0 siblings, 1 reply; 2+ messages in thread
From: Parag Amritkar @ 2011-09-23 18:18 UTC (permalink / raw)
To: linux-kernel
Can we use any field of inode for storing information like storing
encryption key of that file?
If so then how?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Use of inode for storing security info
2011-09-23 18:18 Use of inode for storing security info Parag Amritkar
@ 2011-09-23 23:47 ` Valdis.Kletnieks
0 siblings, 0 replies; 2+ messages in thread
From: Valdis.Kletnieks @ 2011-09-23 23:47 UTC (permalink / raw)
To: Parag Amritkar; +Cc: linux-kernel
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On Fri, 23 Sep 2011 23:48:36 +0530, Parag Amritkar said:
> Can we use any field of inode for storing information like storing
> encryption key of that file?
You probably want to look at how the various security LSMs use
the "security.*" extended attribute namespace to store labels and
similar information.
Protip: You don't want to store the encryption key of the file there.
That's basically leaving the key under the doormat - and a sign saying
"look under doormat for key".
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2011-09-23 18:18 Use of inode for storing security info Parag Amritkar
2011-09-23 23:47 ` Valdis.Kletnieks
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