IDTECH SecureHead User Manual page 23

SecureHead SPI Interface with FPC User Manual
EncryptionID
SecurityLevelID
Device Serial Number ID 00, 00, 00, 00, 00,
KSN and Counter ID
Session ID
Key Management Type
ID
Copyright © 2010-2013, International Technologies & Systems Corporation. All rights reserved.
'0' '0' Clear Text
'1' Triple DES
'2' AES
Command format:
02 53 4C 01 31 03 LRC
'1' '0' ~ '3'
Command format:
02 52 7E 03 LRC
10 bytes number:
00, 00, 00, 00, 00 Command format:
Set Serial Number:
02 53 01 4E 09 08 37 36 35 34 33
32 31 30 03 LRC
Get Serial Number:
02 52 4E 03 LRC
00, 00, 00, 00, 00,
This field includes the Initial Key
00, 00, 00, 00, 00
Serial Number in the leftmost 59
bits and a value for the Encryption
Counter in the right most 21 bits.
Get DUKPT KSN and Counter:
02 52 51 03 LRC
00, 00, 00, 00, 00,
This Session ID is an eight bytes
00, 00, 00
string which contains any hex data.
This filed is used by the host to
uniquely identify the present
transaction. Its primary purpose is to
prevent replays. It is only be used at
Security Level 4. After a card is read,
the Session ID will be encrypted,
along with the card data, a supplied as
part of the transaction message. The
clear text version of this will never be
transmitted.
New Session ID stays in effect until
one of the following ocurrs:
1. Another Set Session ID command
is received.
2. The reader is powered down.
3. The reader is put into Suspend
mode.
'1'
Fixed key management by default.
'0': Fixed Key
'1': DUKPT Key
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