User's Manual

PIN Pad 791 Programmer’s Manual (PCI POS-A) UDN PM0103-U Rev. 06
Section 7 – Contactless EMV Level 2 transaction messages 2015-04-20
Page149
Uniform Industrial Corp. Proprietary and Confidential Total 342 pages
Message T75 Revocation List Setup
Format: <STX>T75<SUB>[RID][SN][PKI]<ETX>[LRC]
Message length: Fixed 25 bytes
Usage: Host can use this command to send revocation key information to PIN pad, this
command can be sent many times. PIN pad will save those information inside and
check those information when do the transaction. PIN pad will send the message T76
(Revocation List Setup Response) to host.
Message element:
Field Length Value and description
<STX> 1 <02>
T75 3 Message ID
<SUB> 1 Separator
[RID] 10 The RID for revocated public key. Present in hexstring.
[SN] 6 The serial number of the revocated public key.
Present in
hexstring.
[PKI] 2
The public key index of the revocated key. Present in
hexstring.
<ETX> 1 <03>
[LRC] 1 Checksum
Example:
Revocation list information
RID: A0 00 00 00 03
SN: 00 00 01
PKI: 51
<STX>T75<SUB> A00000000300000151<ETX>[LRC]
Message flow:
HOST Direction PIN pad
Message T75


<ACK> (Good LRC)
<NAK> (Bad LRC)
<EOT> (after 3 NAKs)

Message T76
<ACK> (Good LRC)
<NAK> (Bad LRC)
<EOT> (after 3 NAKs)
