Arpc Response From Online Processing (Emv Only) - Magtek eDynamo Programmer's Manual

Appendix D - EMV Message Formats (EMV Only)
D.2

ARPC Response from Online Processing (EMV Only)

This section specifies the format of the data for Extended Command 0x0303 - Online Processing
Result / Acquirer Response (EMV Only). The host sends this request to the device in response to
Notification 0x0303 - ARQC Message.
An ARPC Response is a TLV data object with the following contents:
F9<len> /* container for MAC structure and generic data */
DFDF54 (MAC KSN)<len><val>
DFDF55 (Mac Encryption Type><len><val>
DFDF25 (IFD Serial Number)<len><val>
FA<len> /* Container for generic data */
70 04 8A 02 30 30
(ARPC padding, if any, to be a multiple of 8 bytes)
CBC-MAC (4 bytes, reserved, must be sent to the device, however, the
device does not check for the properly calculated CBC-MAC)
eDynamo| Secure Card Reader Authenticator | Programmer's Manual (COMMANDS)
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