On Tue, Nov 18, 2003 at 04:31:32PM -0800, Rayson Ho wrote: > I am wondering if it is useful to have a "secure" file flag?? > > The secure file flag will be set for files that contain sensitive data. > Then the OS will take special care when operating on those "secure" > files. > > e.g. when deleting a "secure" file, the OS will overwrite the file with > random data.
It would also be useful to have a "noexport" flag, which would have the NFS code refuse to send it over the network. I could personally use this for setting on my PGP and SSH keys, while exporting the rest of /home. I did look at implementing this, but couldn't find the "correct" place to do the check for the flag. Any pointers for a kernel newbie? Ceri --
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