nut should be ported to use NSS library for cryptography. See the tracking bug for details and links on how it could be done.
upstream started to work on this: http://svn.debian.org/wsvn/nut/branches/ssl-nss-port/
This task is now completed upstream: https://alioth.debian.org/pm/task.php?func=detailtask&project_task_id=456&group_id=30602&group_project_id=315
This bug was accidentally moved from POST to MODIFIED via an error in automation, please see mmccune with any questions