Copyright © 2010-2014, International Technologies & Systems Corp. All rights reserved.
Page 48 of 74
SecureMag User Manual
4.
Examples for field 8 (Clear/mask data sent status) and field 9
(Encrypted/Hash data sent status)
These two bytes are omitted in original structure. In the enhanced
encrypt structure, these two byte are used to indicate the presence of
each track’s Clear or Masked data, Encrypted data and hash data.
Example :
field 8 = 0x03 (00000011)
field 9 = 0xBF (10111111)
T1: Mask data present; Encrypted data present; Hash present
T2: Mask data present; Encrypted data present; Hash present
T3: No Mask data; Encrypted data present; Hash present
KSN: present
Session ID: not present
Additional Settings
Send LRC in secured mode (6F)
53 6F 01 31
// to send LRC in secure mode (Default)
53 6F 01 30
// Remove LRC in secure mode
Display Expiration Data (50)
53 50 01 30
// Do not display Expiration Date (Exp date Masked)
(Default)
53 50 01 31
// Display Expiration Data
Reader Serial Number (4E)
The serial number will be set to the same as S/N in unit’s label. The length
is 8 to 10 characters. User can read out the S/N with 52 4E command.
10.7
Decryption Example
Key for all examples is
0123456789ABCDEFFEDCBA9876543210
10.7.1.
Security Level 3 Decryption - Original Encryption Format
Decryption of a three track ABA card with the original encryption format.
SecureMag Reader with default settings
Original encryption format can be recognized because the high bit of the fourth byte
underlined (00) is 0.
