DKEK shall accept import even if it is not logged in. However, to store the DKEK, the PIN is used for MKEK, which is not available if it is nog logged in. I added a queueing system to store a pending DKEK after login.
Therefore, to import a DKEK, the user must import it AND call VERIFY command if it is not already logged in.
Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This is an extra layer of security to avoid brute force attacks if PIN is too weak.
At every hard reset (on device plug), the device must be unlocked prior any other command. Once unlocked, the device can be used as usual.
Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>