What are SA/PPUA and UA?

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Thanks to LANES

PPUA:
The PPUA or Program Provider User Address is a 4 byte long code, composed of 2 separate codes. The first 3 bytes of the PPUA are called the Shared Address, the last byte of the PPUA is the Customer Word Pointer. The PPUA is used to identify and address cards.

Shared Address:
The Shared Address (SA) are the first 3 bytes of the PPUA and is used to address cards groupwise. A card group can contain a maximum of 256
individual cards.

UA is 5 byte in lenght, 1 byte and then PPUA.
In MKExtract it's Serie Nummer.
You can read it this way.

CA A4 00 00 00 90 00
CA AC A4 00 00 AC 90 00
CA B8 00 00 07 B8 A4 05 XX XX XX XX XX 90 08

Where XX is UA.


Lanes