I just placed an fstab entry as below, after doing a dd wipe on swap partition and seems to work, defaults to AES AFAIK.
/dev/ada0p1.eli none swap sw,keylen=256,sectorsize=4096 0 0
The handbook states use of geli onetime -d -e 3des ada0p1
* Is 3DES more appropriate than AES for swap?
* Do I...