On Tue, May 25, 2021 at 02:25:21PM -0400, Robert Haas wrote: > One question here is whether we're comfortable saying that the nonce > is entirely constant. I wasn't sure about that. It seems possible to > me that different encryption algorithms might want nonces of different > sizes, either now or in the future. I am not a cryptographer, but that > seemed like a bit of a limiting assumption. So Bharath and I decided > to make the POC cater to a fully variable-size nonce rather than > zero-or-some-constant. However, if the consensus is that > zero-or-some-constant is better, fair enough! The patch can certainly > be adjusted to cater to work that way.
A 16-byte nonce is sufficient for AES and I doubt we will need anything stronger than AES256 anytime soon. Making the nonce variable length seems it is just adding complexity for little purpose. -- Bruce Momjian <br...@momjian.us> https://momjian.us EDB https://enterprisedb.com If only the physical world exists, free will is an illusion.
