When the device sends masked track data, it replaces some characters in the track data with a specified mask character. The specific characters the device masks depends on the card encode type. The device only selectively masks data that came from ISO/ABA cards (Financial Cards with ISO/IEC 7813 Format code B); it sends data from all other card types entirely unmasked.
The device masks all fields from ISO/ABA cards except a number of configurable leading and trailing characters of the PAN. See Property 1.1.2.2.1.3 PAN Number of Leading Unmasked Characters and Property 1.1.2.2.1.4 PAN Number of Trailing Unmasked Characters.
For chip card transactions, masked track 2 data is contained in TLV data object DFDF4D. For magnetic stripe transactions, masked track 1, 2 and 3 data is contained in TLV data objects DFDF31, DFDF33 and DFDF35, respectively.
Table 513 below provides an example of data from tracks 1, 2, and 3 of an ISO/ABA card after it has been decrypted or if the device has sent it in the clear. Table 514 shows the same data as it might appear with a specific set of masking rules applied.
This OID is reserved for Mey Mapping of MagTek Token.
Securing Key
None
Min. Len (b)
0x01
Max. Len (b)
0x01
Data Type
Binary
Valid Values
Min 0x00
Max 0x08, if PAN length is less than 16, the number of unmasked characters will be limited to 6.
Default
0x04
Securing Key
None
Min. Len (b)
0x01
Max. Len (b)
0x01
Data Type
Binary
Valid Values
Min 0x00 Max 0x04
Default
0x04
Securing Key
None
Min. Len (b)
0x01
Max. Len (b)
0x01
Data Type
Binary
Valid Values
0x00 = Disabled 0x01 = Enabled
Default
0x01
Securing Key
None
Min. Len (b)
0x01
Max. Len (b)
0x01
Data Type
Binary
Valid Values
0x00 = Disabled 0x01 = Enabled
Default
0x00
Securing Key
None
Min. Len (b)
0x03
Max. Len (b)
0x03
Data Type
Binary
Valid Values
See DUKPT Key Mapping for detail information.
Default
0x00, 0x00, 0x01
Securing Key
None
Min. Len (b)
0x03
Max. Len (b)
0x03
Data Type
Binary
Valid Values
See DUKPT Key Mapping for detail information.
Default
0x20, 0x07, 0x04
Securing Key
None
Min. Len (b)
0x03
Max. Len (b)
0x03
Data Type
Binary
Valid Values
See DUKPT Key Mapping for detail information.
Default
0x20, 0x07, 0x02
Securing Key
None
Min. Len (b)
0x03
Max. Len (b)
0x03
Data Type
Binary
Valid Values
See DUKPT Key Mapping for detail information.
Default
0x20, 0x07, 0x04
Description
The device uses this property to determine what character it should use when sending masked ISO/ABA track data. If the Property 1.1.2.2.1.5 PAN MOD 10 Check Digit Correction is enabled, the masked portions of the track will always be masked with ‘0’. For more information about masking, see the information at the bottom of this section.
The device uses this property to determine how many of the leading characters of the PAN the device sends unmasked in Masked Track x Data in ISO/ABA account information For details about ISO/ABA track masking, see Property 1.1.2.2.1.2 ISO/ABA Masking Character.
The device uses this property to determine how many of the trailing characters of the PAN the device sends unmasked in Masked Track x Data in ISO/ABA account information For details about ISO/ABA track masking, see Property 1.1.2.2.1.2 ISO/ABA Masking Character.
The device uses this property to determine whether it should modify one of the masked PAN digits such that the masked PAN passes the Luhn MOD-10 algorithm check. If this property is enabled, the device uses masking character ‘0’ to mask the PAN, regardless of the setting in Property 1.1.2.2.1.2 ISO/ABA Masking Character, and masks the remainder of the track data with the configured masking character.
The device uses this property to determine whether to use the Luhn MOD-10 algorithm to validate card number (PAN) digits a cardholder or operator enters in manual card entry mode during Command 0x1001 - Start Transaction. If validation is enabled, the device checks the PAN digits during entry, and until the PAN passes the check, the device disables the ENTER key, sounds an error tone when the Enter key is pressed (if the command has audio feedback enabled), and stays at the Card Number prompt until the cardholder or operator presses the Cancel button or corrects the PAN.