User's Manual

SE32/03-011145-01 SAGEM SA document. Reproduction and disclosure forbidden. 73

Access the MIFARE keys update menu

(MorphoAccess

220)

Each data sector on a MIFARE card is protected in reading and

writing by 2 keys of 6 bytes each. These keys are noted A and B.

Since the card is composed of 16 sectors, there are actually 32

keys.

When you present a MIFARE card to the MorphoAccess for an

authentication, data can be read only if the keys which protect it

are the same as the keys initialized into the reader. By default both

keys A and B are set to 0xFFFFFF for the 16 sectors in the

MIFARE module of the MorphoAccess. These default values are

called Transport keys.

You can change the value of the keys thanks to the hotkey

CL KEYS in the Administrator menu

(16)

. You will need for that an

administrator card containing the new keys to initialize. Please

check the Enrollment Station documentation to know how to create

an administrator card.

While you are in the administrator menu, press the key CL KEYS.

The MIFARE KEYS UPDATE screen appears.

Present the administrator card to start the update.

(16)

If you perform this operation, the old user cards won't be readable anymore, since the keys won't be com-

pliant anymore.

CANCEL

MIFARE KEYS UPDATE

Please Present Admin Card

manuel.book Page 73 Vendredi, 30. mai 2003 12:21 12