I think that your approach is coming from the wrong direction, and will be very hard to get right. Access control is the job of the operating system, and should stay there.

A better approach might be a fine graded access control scheme. Maybe ACLs can help you, and may selinux can help you. (In both cases it will still be hard to get right, but not that hard).

In reply to Re: semi secure sudo script to allow restricted copy ability by moritz
in thread semi secure sudo script to allow restricted copy ability by 5mi11er

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