Reference Manual Preliminary
Prox–DU & Prox–SU
www.gemalto.com Release for first samples Do not use for final design
DOC118569A Public Use Page 133/134
Key A Key B
C1
b
C2
b
C3
b
Read Write Read Write Read Write
0 0 0 Never Key A Key A Never Key A Key A
Key B may be
read
0 0 1 Never Key A Key A Key A Key A Key A
Key B may be
read.
(Transport
configuration)
0 1 0 Never Never Key A Never Key A Never
Key B may be
read
0 1 1 Never Key B Key A | B Key B Never Key B
1 0 0 Never Key B Key A | B Never Never Key B
1 0 1 Never Never Key A | B Key B Never Never
1 1 0 Never Never Key A | B Never Never Never
1 1 1 Never Never Key A | B Never Never Never
The shaded areas are access conditions where Key B is readable and may be used for data.
Table 60 - Access to Sector Trailer
The access conditions for the sector trailer and Key A are predefined as transport
configuration upon card delivery.
As Key B is read in transport configuration, new cards are authenticated with Key A.
Note:
The access bits can also be blocked by the user to prohibit any further changes to the
access conditions.
As the access bits can be altered by the user, special care should be taken during
personalization phase.
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