Replaced 'cryptography' by the much small 'crypto' package.
With cryptography, the build is too big with e.g. cpp included.
PS: this was already a long time the mailinglist. I guess with my
attempt to attach a patch, this could be processed.
Signed-off-by: Jan Vermaete <jan.vermaete@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>