VeriFone MX800 Series - Packet 25: Check the DUKPT Engine

IPP MS AND DUKPT COMMUNICATIONS PACKETS
Packet 25: Check the DUKPT Engine
326 M
X
800 SERIES PROGRAMMERS GUIDE
Packet 25: Check
the DUKPT Engine
The application sends this packet to the IPP to check the current active DUKPT
engines ("0", "1", or "2").
Request Packet
Format
<SI>25<SO>{LRC}
Packet 25 Length: • Maximum: 5 characters
• Minimum: 5 characters
Response Packet
Format
<SI>25[PUSN]<SO>{LRC}
Packet 25 Length: • Maximum: 6 characters
• Minimum: 6 characters
Sample Packet:
To Check DUKPT Engine:
<SI>25<SO>{LRC}
Response packet, DUKPT Engine "1" = active DUKPT Engine:
<SI>251<SO>{LRC}
NOTE
This packet is added for IPP8 emulation.
Table 68 Packet 25 Format
Data Element Characteristic Comments
<SI> 1H Shift in, value: 0Fh
Packet Type 2AN Value: 25
<SO> 1H Shift out, value: 0Eh
{LRC} 1H Error check
Table 69 Packet 25 Format
Data Element Characteristic Comments
<SI> 1H Shift in, value: 0Fh
Packet Type 2AN Value: 25
[a] 1N Active DUKPT Engine: "0", "1",or "2"
<SO> 1H Shift Out, value: 0Eh
{LRC} 1H Error Check