Si>15Spain<So> Set Ipp6 Key Management Mode; Si>17Xyz<So> Set Ipp7 Key Management Mode; Si>02; Stx>75 - VeriFone MX800 series Programmer's Manual

IPP MS DUKPT C
AND OMMUNICATIONS

Packets

Packets
NOTE
276
M X 800 S P
ERIES ROGRAMMERS
P
ACKETS
<SI>15SPAIN<SO> Set IPP6 Key Management Mode
Spain mode is not supported and switching to Spain mode erases keys. This is
done because some programs depend on this feature to erase keys.
<SI>17xyz<SO> Set IPP7 Key Management Mode
SM mode is not supported but switching to SM mode erases keys. This is done
because some programs depend on this feature to erase keys.
<SI>02...<SO> Set Master Key
IPP7 can hold a maximum of three (3) triple-length keys. In VVIPP, all ten key
locations can hold a single-, double-, or triple-length key.
<STX>75..<ETX> DUKPT Accept and Encrypt PIN/Data Authentication

Response

ANSI DUKPT MAC is only defined for 3DES DUKPT. VVIPP returns error code 8
if ANSI DUKPT MAC is requested when using 1DES DUKPT. IPP7 returns
undefined results in this case.
The packet set is similar to that used for external PIN pads, such as the
PINpad 1000, however, unlike previous IPPs, the Omni 33XX IPP is a software
module running on the main CPU. Previous IPPs used dedicated microcontrollers
connected to the main CPU through a serial port. In Omni 33XXIPP the COM5
serial port is emulated in software along with all IPP functionality.
The IPP command and response packets can be divided into the following
categories:
•
Common Packets: Packets used in both MS and DUKPT.
•
MS-Specific Packets: Packets used while doing MS.
•
DUKPT-Specific Packets: Packets used while doing DUKPT.
•
MAC-Specific Packets: MAC generation of received message packets.
Omni 33XX IPP does not support Spain SEMP/4B mode or Secure Messaging
(SM) mode.
The IPP supports both MS and DUKPT key management modes concurrently.
Also, the IPP supports MAC processing while doing MS or DUKPT.
Table 23 lists packets used in both MS and DUKPT sessions.
Table 23 Common Packets
Packet Description
01 Interactive diagnostic routine
05 Transfer serial number
06 Request PIN pad serial number
G
UIDE