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參數(shù)資料
| 型號： | HTRM440_FAMILY |
| 英文描述： | HITAG proximity reader module hardware |
| 中文描述： | 此外，HITAG感應(yīng)讀卡器模塊硬件 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 75K |
| 代理商： | HTRM440_FAMILY |
2001 Oct 04
8
Philips Semiconductors
Product specification
HITAG proximity reader module
hardware
HTRM440 family
7.5.3
C
HECKING USER DATA
This check is carried out on the HTRM440.
Security of the data read from the transponder by the
reader module remains with the user for reasons of
flexibility. Therefore, you can choose flexible check sums
and store them in the transponder memory together with
the data. You can protect sensitive data better than less
sensitive data, thus permitting optimized operation times.
7.5.4
D
ATA PRIVACY
The use of cryptography (stream cypher), mutual
authentication, and password verification prevents
monitoring and copying the data channel. Therefore, the
area of the transponder that only can be accessed
enciphered is called ‘secret area’.
To make use of cryptography for HITAG 1 transponders
you need:
Keys to be used for initializing of the crypto block
Logdata to be used for mutual authentication.
To make use of cryptography for HITAG 2 transponders
you need:
A key which is used to initialize the crypto block using
HITAG 2 in crypto mode
Passwords which are used for authentication for
HITAG 2 in password mode.
The transponders and the HTRM440 are provided with
identical transport keys and transport logdata so that you
can start operating them right away (see Table 1).
In order to offer our OEM clients high flexibility, the
configuration of the transponder memory, password, keys
and logdata can be changed. We strictly recommend to
rigorously restrict these possibilities for the end customers
(by setting the configuration page to read only, setting
password, keys and logdata to neither read nor write).
7.6
Operating security
The following mechanisms ensure the operating security
of the HITAG system:
Anticollission mode
Monitoring the supply voltage
Detection of antenna rupture and antenna short-circuit.
7.6.1
A
NTICOLLISION
In proximity reader applications using HITAG 1 or
HITAG 2 transponders, only one transponder is handled
even if there are several transponders within the
communication field of the antenna. In this case either no
communication takes place or the ‘stronger’ or closer
transponder takes over. By muting a selected transponder
(HALT mode) another transponder that is to be found in
the communication field of the antenna can be recognised.
7.6.2
M
ONITORING THE SUPPLY VOLTAGE
The supply voltage is controlled by a watchdog circuit
which triggers a system reset if the supply voltage drops
below 4.75 V or if the microcontroller fails.
7.6.3
D
ETECTION OF ANTENNA RUPTURE AND ANTENNA
SHORT
-
CIRCUIT
TheHTRM440doesnotgetpermanentlydamagedincase
of an antenna rupture or a brief antenna short-circuit.
Table 1
Transport values predefined by Philips.
SYSTEM
PARAMETER
VALUE
HITAG 1
keyinit password
keys
logdata
keyinit password
key
password TAG
password RWD
0x00000000
0x00000000
0x00000000
0x00000000
0x4D494B524F4E
0xAA4854
0x4D494B52
HITAG 2
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| HTRM800 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:HITAG long range reader module hardware |
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| HTRM800/AED,122 | 功能描述:RFID HITAG READER MODULE RS232 RoHS:否 類別:RF/IF 和 RFID >> RFID 讀取模塊 系列:HITAG® 遠(yuǎn)程 產(chǎn)品目錄繪圖:DLP-RFID-UHF1B 標(biāo)準(zhǔn)包裝:1 系列:- RF 型:讀/寫 頻率:900MHz 特點(diǎn):ISO 18000-6 a/b/c 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 產(chǎn)品目錄頁面:635 (CN2011-ZH PDF) 其它名稱:813-1029 |
| HTRM800/CED | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:HITAG long range reader module hardware |
| HTRM800/CED,122 | 制造商:NXP Semiconductors 功能描述: |
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