| BTKEY(1) | General Commands Manual | BTKEY(1) | 
btkey —
| btkey | [ -CcRrWw] [-kkey]-aaddress-ddevice | 
| btkey | -Ll[-ddevice] | 
btkey program is used to manage Bluetooth Link Key
  storage. Keys are normally handled by the
  bthcid(8) daemon which caches
  them in the /var/db/bthcid.keys file and provides them
  as required when Bluetooth connections need to be authenticated.
These keys are required for connections between remote devices and
    the specific controller (not the Operating System) and so for multi-boot
    systems where it may not always be possible to specify the same key across
    all OS's it can be better to have the Bluetooth controller provide the keys
    directly from its semi-permanent memory once devices are paired.
    btkey will read, write or clear keys in device
    memory or the key cache as required.
Note that without the bthcid(8) daemon running users will be unable to supply PINs, and Link Keys resulting from new pairings will not be stored. If no new pairings are expected and the keys are stored in the controller then bthcid(8) is not required.
The options are as follows:
-a
    address-C-c-d
    device-k
    key-L-l-R-r-W-wSuper-user privileges are required to read or write link keys.
btkey utility exits 0 on success,
  and >0 if an error occurs.
btkey -d ubt0 -a mouse
  -rWWrite new key for keyboard at ubt0 to file
btkey -d ubt0 -a keyboard -k
  92beda6cd8b8f66ebd2af270d55d70ec -wClear key for phone at bt3c0 from file and device
btkey -d bt3c0 -a phone
  -cC| November 8, 2007 | NetBSD 10.0 |