On 2021-May-27, Andres Freund wrote: > On 2021-05-27 15:48:09 -0400, Robert Haas wrote:
> > Another case where this sort of thing might happen is a standby doing > > whatever the master did. I suppose that could be avoided if the > > standby always has its own encryption keys, but that forces a key > > rotation when you create a standby, and it doesn't seem like a lot of > > fun to insist on that. But the information leak seems minor. > > Which leaks seem minor? The "hole" issues leak all the prior contents of > the hole, without needing any complicated analysis of the data, because > one plain text is known (zeroes). Maybe that problem could be solved by having PageRepairFragmentation, compactify_tuples et al always fill the hole with zeroes, in encrypted databases. -- Álvaro Herrera Valdivia, Chile
