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Date: Tue, 01 May 2012 12:51:16 +0200
From: Florian Weimer <>
Subject: Re: weak use of crypto in python-elixir can lead to information disclosure (CVE and peer review request)

* Vincent Danen:

>>And you can group by encrypted column values in the database.  That's
>>why I'm not sure if it's actually possible to address this issue in a
>>satisfying manner.
> So the encryption can be more fine-grained than just per-table?  You can
> also do it per-column?  If that's the case, this does sound a lot uglier
> to deal with.

This test case suggests to me that you have to specify the list of
encrypted columns explicitly:


Based on this example, it's not clear to me if the current
implementation supports get_by with an encrypted column.  If this is a
feature which needs preserving, there is no apparent way around
convergent encryption.

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