[QGIS-Developer] SSL Performance Overhead

[Mathieu Pellerin]

For the record, sending unencrypted data over a local network isn't safe as
soon as WIFI is part of said local network.

On Mon, Jun 17, 2019, 17:02 Martin Dobias <wonder.sk at gmail.com> wrote:

> Hi Matthias
>
> On Mon, Jun 17, 2019 at 8:48 AM Matthias Kuhn <matthias at opengis.ch> wrote:
> >
> > The documentation currently promises "massive speed-ups in PostGIS layer
> > rendering" with SSL disabled. [1]
> >
> > [...]
> >
> > Is there anyone who knows why this sentence was introduced? And if there
> > is (still) an issue with performance when using SSL?
>
> As Jurgen has commented on the pull request already, we have figured
> out that QGIS was taking a lot more time to access features from a
> local PostgreSQL database compared to some other app (uDig?). I have
> dug out an old mail with the measurement - the difference was ~12
> seconds to fetch data in QGIS vs ~4 seconds to fetch data in the other
> app. In the end we figured out that disabling encryption removed that
> penalization. All that was back in 2009 :-)
>
> Unless there have been some improvements in the server/client lib, I
> think the promise of massive speed up is still valid... And as Andreas
> mentions, most(?) of the time people use the DB on a local network, so
> it should not be a big deal to send data on local network unencrypted.
>
> Cheers
> Martin
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