Tests using randomized signatures were currently randomized. We need the
output of the script to be reproducible, so this won't do.
Force randomized signatures to use a specific RNG which is reset before
constructing each test case. This way, the script's output is reproducible.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Create a directory for scripts that are useful to maintainers, and may be
invoked as part of the CI, but are not part of the normal build.
These scripts may require a recent Python version and may require additional
third-party modules, unlike user-facing scripts where we try to minimize
requirements.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>