Sign own plugin in Nessus

openssl genrsa -aes128 1024 > /opt/nessus/var/nessus/MyCustomKey.priv.pem
openssl rsa -pubout < /opt/nessus/var/nessus/MyCustomKey.priv.pem > /opt/nessus/var/nessus/MyCustomKey.pem
/opt/nessus/bin/nasl -S /tmp/plugins/account_test1_test123.nasl > account_test1_test123.nasl