Download Here - Common Access Card (CAC)

6.9.3 PIN Validation
6.9.3.1 Minidriver shall require all new PINs to be no less than 6 and no greater than 8
numeric characters in length.
6.9.3.2 As specified in GSC-IS 2.1, for PINs less than 8 characters, minidriver shall pad
the PIN with 0xFF to the least significant bytes.
6.9.3.3 In the event an invalid PIN is entered, the minidriver shall notify the user of the
error.
6.9.4 Minidriver shall indicate to the user how many remaining PIN attempts before
locking.
6.9.5 Specific PIN Management Requirements
6.9.5.1 PIN Unblock
6.9.5.1.1 PIN unblock function is a privileged activity on the CAC that is only
available from specialized DoD software and workstations. This is not a
function that is expected to be available from normal CACholder client
workstations.
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