3. Setup the BioStar System
49
Copyright © 2008, Suprema Inc. On the web: www.supremainc.com
3.5.3.5 Change the MIFARE site key
Data encryption for MIFARE cards is governed by a 48-bit site key. Only
those cards with appropriate site keys can be read by connected devices.
BioStar allows you to define up to two MIFARE site keys (primary and
secondary), so that you can change the site key for existing cards.
Note:
Site keys must be carefully guarded. If the site key is revealed, your
security system can be bypassed.
To change the MIFARE site key,
1. From the menu bar, click
Option > Mifare Card > Mifare
Sitekey
. This will open the Mifare Sitekey window.
2. Enter a new primary key in the
New Primary Key
field.
3. Enter the key again in the
Retype Primary Key
field.
4. Click the
Use
radio button to activate the secondary key function.
This allows cards with the old site key to be read and rewritten with
the new key:
a. Enter the old site key in the
New Secondary Key
field.
b. Enter the old site key again in the
Retype Secondary Key
field.
5. When you are finished editing the site key, click
OK
.
Note:
When all cards have been rewritten with the new site key, Suprema
advises disabling the secondary key function to prevent old cards from being
used for access.
3.5.3.6 Edit the MIFARE layout
BioStar allows you to customize the MIFARE layout that is used to
record user information and fingerprint templates. This layout will be
applied to all new MIFARE cards issued with the devices you specify
(BioStation Mifare or BioEntry Plus Mifare devices).
