> IF they've got root, and the unencrypted data or the password / key is
> on the machine or in memory on it, you've lost. It may make it harder
> for them to get it, but they can.
>
This is true but in answer to your question you can use something like
cryptfs. Note that you will loose performance.
Joshua D. Drake
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match
>
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