Messages in this thread | | | Date | Mon, 12 Mar 2012 14:34:41 +0100 (CET) | From | Joel Reardon <> | Subject | Re: [patch] Adding Secure Deletion to UBIFS |
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> > I think you can use them. But is it possible to kill these things from > the data nodes themselves? We can always find it by looking up the index > by the data node key, right? >
Yep, thats exactly right. Originally it was just inside the data node; I put it into the TNC as a optimization later during development. If I use the last eight bytes from the data node's key, and I remove the position from ubifs_branch, then there is no longer any change to the on-disk format, so thats should be useful. Yeah, storing the same value twice means also needing a consistency check. What can be done is that when the value is loaded once after mounting, it is stored in in the z-node in memory.
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