HT-CM400 NXP Semiconductors, HT-CM400 Datasheet - Page 92
HT-CM400
Manufacturer Part Number
HT-CM400
Description
Ht Cm400; Ht Rm440 Family; Ht Rm800 Family Interface Protocol Reader - Host
Manufacturer
NXP Semiconductors
Datasheet
1.HT-CM400.pdf
(104 pages)
- Current page: 92 of 104
- Download datasheet (360Kb)
Personalization
5 Personalization
5.1 Introduction
In order to profit from the full functionality of the HITAG transponders, the read/write device has
to support the transponder´s cryptographic feature.
This requires the use of some secret data (keys, logdata). The process of loading these data into
the read/write device is called personalization. The same personalization procedure has to be
carried out on your transponders.
5.2 Personalization Concept
To enable utmost security and flexibility Philips Semiconductors worked out a personalization
concept that shall be shortly described in the following:
The first stage is a test that is done by the producer respectively Philips Semiconductors. Here the
unique serial number is fixed and defined Transport Keys, Transport Logdata and
Transport Passwords are pre-programmed.
In the next stage the customers program their own keys and passwords (to ensure that only
persons who got the authorization from the customer are able to access secret data of the
transponders) and configure the memory of the transponders. We recommend to lock sensitive
areas, that means for example to prevent the possibility to change keys and passwords for the
user.
In the last stage the user just reads from and writes to the memory of the transponders.
Note: If you change these Transport Keys and Transport Logdata (and we strictly recommend to
do so if you want to store security - sensitive data) in the course of system integration, you have
to be extremely careful. Make sure you are in a safe environment while writing secret data to the
transponder or the read/write device. This prevents possible listening in to the communication
between HOST and read/write device.
All the security relevant data in the read/write device can be protected from read or write accesses
using special serial commands.
Security relevant data for HITAG 1 transponders:
Security relevant data for HITAG 2 transponders:
Htswp.doc/HS
Key information A and B
Logdata 0A, 0B
Logdata 1A, 1B
Key information
Password TAG
Password RWD
Page 92 (104)
Rev. 1.0
98-02-10
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