Didier,
you was given a few things to check in another my message on the same day. You have not provided any feedback.
It is up to you how to implement your system, but you can with no doubt consider your database as not encrypted with your approach. You (or probably your management) have no understanding from which risks you protect your data.
Regards,
Vlad
вс, 7 окт. 2018 г. в 11:33, ROS Didier <didier.ros@xxxxxx>:
Hi Francisco
Thank you for your remark.
You're right, but it's the only procedure I found to make search on encrypted fields with good response times (using index) !
Regarding access to the file system, our servers are in protected network areas. few people can connect to it.
it's not the best solution, but we have data encryption needs and good performance needs too. I do not know how to do it except the specified procedure..
if anyone has any proposals to put this in place, I'm interested.
Thanks in advance
Best Regards
Didier ROS
-----Message d'origine-----
De : folarte@xxxxxxxxxxxxxx [mailto:folarte@xxxxxxxxxxxxxx]
Envoyé : dimanche 7 octobre 2018 17:58
À : ROS Didier <didier.ros@xxxxxx>
Cc : pavel.stehule@xxxxxxxxx; pgsql-sql@xxxxxxxxxxxxxxxxxxxx; pgsql-performance@xxxxxxxxxxxxxxxxxxxx; pgsql-general@xxxxxxxxxxxxxxxxxxxx
Objet : Re: Why the index is not used ?
ROS:
On Sun, Oct 7, 2018 at 3:13 PM, ROS Didier <didier.ros@xxxxxx> wrote:
....
> - INSERT INTO cartedecredit(username,cc) SELECT 'individu ' || x.id, pgp_sym_encrypt('test value ' || x.id, 'motdepasse','compress-algo=2, cipher-algo=aes256') FROM generate_series(1,100000) AS x(id);
> - CREATE INDEX idx_cartedecredit_cc02 ON cartedecredit(pgp_sym_decrypt(cc, 'motdepasse','compress-algo=2, cipher-algo=aes256'));
If my french is not too rusty you are encrypting a credit-card, and then storing an UNENCRYPTED copy in the index. So, getting it from the server is trivial for anyone with filesystem access.
Francisco Olarte.
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