This section gives the format of the ARQC Message delivered in the ARQC Message notification. The output is controlled by Property 0x68 – EMV Message Format. There are currently 2 selectable formats: Original and DynaPro. It is a TLV object with the following contents.
Original Format:
FD<len>/* container for generic data */
DFDF25(IFD Serial Number)<len><val>
FA<len>/* container for generic data */
<tags defined by DFDF02 >
. Note: Sensitive Data cannot be defined in DFDF02
.
DFDF4D(Masked T2 ICC Data)
DFDF52 - Card Type Used
F8<len>/* container tag for encrypted data */
DFDF56(Encrypted Transaction Data KSN)<len><val>
DFDF57(Encrypted Transaction Data Encryption Type)<val>
FA<len>/* container for generic data */
DF30(Encrypted Tag 56 TLV, T1 Data)<len><val>
DF31(Encrypted Tag 57 TLV, T2 Data)<len><val>
DF32(Encrypted Tag 5A TLV, PAN)<len><val>
DF35(Encrypted Tag 9F1F TLV, T1 DD)<len><val>
DF36(Encrypted Tag 9F20 TLV, T2, DD)<len><val>
DF37(Encrypted Tag 9F61 TLV, T2 CVC3)<len><val>
DF38(Encrypted Tag 9F62 TLV, T1,PCVC3)<len><val>
DF39(Encrypted Tag DF812A TLV, T1 DD)<len><val>
DF3A(Encrypted Tag DF812B TLV, T2 DD)<len><val>
DF3B(Encrypted Tag DFDF4A TLV, T2 ISO Format)<len><val>
DF40(Encrypted Value only of DFDF4A, T2 ISO Format)<len><val>
DynaPro Format:
The Value inside tag DFDF59 is encrypted and contains the following after decryption:
FC<len>/* container for encrypted generic data */
<tags defined by DFDF02 >
.
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<len>/*container for ARQC */
DFDF53<len><value>/*fallback indicator */
5F20<len><value>/*cardholder name */
5F30<len><value>/*service code */
DFDF4D<len><value>/* Mask T2 ICC Data */
DFDF52<len><value>/* card type */
F8<len>/*container tag for encryption */
DFDF59(Encrypted Data Primitive)<len><Encrypted Data val (Decrypt data to read tags)>
DFDF56(Encrypted Transaction Data KSN)<len><val>
DFDF57(Encrypted Transaction Data Encryption Type)<val>
DFDF58(# of bytes of padding in DFDF59)<len><val>
(Buffer if any to be a multiple of 8 bytes)
CBC-MAC (4 bytes, always set to zeroes)