Get Reader State Command - Magtek MagneSafe V5 Reference Manual

MagneSafe V5
Data structure:
Offset Field Name
0 Response to
Challenge 2
Result codes:
Example Deactivate Authenticated Mode Request (Hex):
Cmd Num
12
Example Deactivate Authenticated Mode Response (Hex):
Result Code
00

Get Reader State Command

Command Number: 0x14
Description:
68
behavior is intended to discourage denial of service attacks. Exiting the
Authenticated Mode by timeout or card swipe always increments the
KSN, exiting Authenticated Mode by the Deactivate Authenticated Mode
command may increment the KSN.
Request Data:
Description
Seven bytes of Challenge 2 plus one byte of
Increment flag as outlined above, encrypted by the
specified variant of the current DUKPT Key
Response Data: None
0x00 Success
0x02 Bad Parameters – the Request Data is not a correct length
0x03 Bad Data – the encrypted reply data could not be verified
0x07 Sequence – not expecting this command
Data Len
08
Data Len
00
This command is used to get the current state of the reader. The state is
returned as two bytes that represent the Current State of the reader and
how it got to that state (Antecedent). For more information see
States.
Data
8579827521573495
Data
Reader