Packet 15: Set Ipp Key Management Mode - VeriFone MX800 series Programmer's Manual

IPP MS DUKPT C
AND OMMUNICATIONS
Common Packets
Packet 15: Set IPP
Key Management
Mode
NOTE
Request Packet
Format
298
M X 800 S P
ERIES ROGRAMMERS
P
ACKETS
Table 39 Packet 13 Communication Protocol
Transmit
Master Device
Direction
<SI>13x<SO>{LRC}
ACK/NAK
This packet command changes the secret key management mode that the IPP
uses for the transaction. The IPP supports two modes of secret key management:
•
IPP5 or VISA MASTER SESSION+DUKPT mode
VISA MASTER SESSION+DUKPT mode covers MS and DUKPT and MAC
process of standard ANSI MAC. The Omni 33XX IPP does not include SEMP/4B
mode, and erases keys when this mode is selected.
In the Omni 33XX IPP, switching to SEMP/4B mode clears all IPP memory but
leaves the IPP in VISA M/S+DUKPT mode.
<SI>15[Key Code][<SO>{LRC}
Table 40 IPP Request Packet 15 Format
Data Element Field
<SI> Start of
packet
15 Packet type
G
UIDE
IPP
ACK if LRC okay; NAK if LRC incorrect.
<SI>14yyyyy<SO>{LRC}
where,
x = baud rate code yyyyy = string for selected
baud rate
1
• •
2
• •
3
• •
4
• •
5
• •
The baud rate code must be in the range 1–5; all
other codes are ignored and directly echo [EOT]
with the baud rate unchanged.
EOT to terminate process (the PIN pad uses the
new baud rate accordingly).
Length Comments
1 Shift in.
Control character- 0Fh
2 Set IPP key management mode
1200 (default)
2400
4800
9600
19200