Michael Ledford <mledford@gmail.com> writes:
> One might argue that the current method is already weakened as it is
> measured by the amount of data sent instead of of a length of time. A
> session could live a long time under the 512MB threshold depending on
> the queries that are being performed.
Renegotiation after X amount of data is the recommended method AFAIK,
because it limits the volume of data available to cryptanalysis.
What makes you think that elapsed time is relevant at all?
regards, tom lane