No they are not. Doing this would make executions non-deterministic.
Marc
> On Aug 8, 2018, at 4:13 AM, Adam <adam.mlmb@gmail.com> wrote:
>
> Hi Marc,
>
> Are Gambit's hash tables protected against double hash attacks?
>
> E.g. by calculating a random number that's used as hash seed making it impossible for an attacker to produce key hash collissions, https://en.wikipedia.org/wiki/SipHash .
>
> Adam