Another thing. Have anyone tried to encrypt all data inside the Data.fs file? I mean, encrypted the data so that not even root can access it, only if you have the right passphrase (or whatever) in the management interface are you allowed access to the data.

You got some suggestions to rewrite pickling routines. I have another simple idea: what about leaving zope intact and putting Data.fs on cryptographic filesystem? There are some implementations freely available within Linux kernel... By the way: whichever method to encrypt data you would use, you will face the same problem: - either you must manually enter some password after each system or zope startup - or you must put the password (key,seed,.. whatever) somewhere on the filesystem - where it can be easily read at least by the root. -- Serwis dla programistów, kącik mieszkaniowy: http://www.mk.w.pl | | You have the right to see progress in a running system, proven to work | by passing repeatable tests that you specify. (Ken Beck's Second | Customer Right)