Date: Tue, 01 May 2012 12:51:16 +0200 From: Florian Weimer <fw@...eb.enyo.de> To: oss-security@...ts.openwall.com 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: <http://elixir.ematia.de/trac/browser/elixir/trunk/tests/test_encryption.py> 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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