jbtama.blogg.se - Emv card software

The terminal can, if Issuer Authentication is supported on card as indicated by AIP, ask the card to verify the ARPC using the secret key the card shares with issuer.Ĭard Risk Management Data Object List 1 (CDOL1): 9F02069F03069F1A0295055F2A029A039C019F3704ĩf02 - 6 - Authorised amount of the transaction (excluding adjustments)ĩf03 - 6 - Secondary amount associated with the transaction representing a cashback amountĬard Risk Management Data Object List 2 (CDOL2): 8A029F02069F03069F1A0295055F2A029A039C019F3704Ĭard Risk Management Data Object List (CDOL) are the data elements needed to generate Application Cryptogram (AC).

Issuer Authentication is where Issuer, after authorizes a transaction, sends authorization result as well as an application cryptogram called ARPC ( Application ResPonse Cryptogram) back to terminal.

For the latter 2, terminal can reject the transactions without consulting issuers or networks offline, to 1) force a transaction to go online 2) check if recent transaction amounts exceed a floor limit set on the card 3) if velocity exceeds a threshold set on the card.

Terminal Risk Management can make decisions on its own, ie.

Cardholder Verification Methods (CVM) are supported (we will see what methods next).

Dynamic Data Authentication (DDA using 3 layers of RSA key pairs including one for the card itself) is supported, but not Static Data Authentication (SDA only CA and Issuer key pairs) for weak security.

Terminal risk management is to be performed (b4) Cardholder verification is supported (b5)