SoftPOS high Level Architecture exemple
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The Agnos L2 SDK provides the way for the customer to :
connect his own Secure Client API (secclt module) that allows the merchants app to provision and control the attestation and monitoring, keys and configuration update, and PIN entry by …(KML2 Lib connected to ? )using the KML2 Lib . The Agnos L2 SDK will call functions present in the Secure Client
use and connect is L3 Payment application via The Agnos API (agnos module - OLA) that provides payment transaction features.
Notes:
The Secure Client API and Agnos API are independent. If an online PIN verification is required, the L3 module is responsible for invoking the secure PIN entry API and send the resulting cryptogram to its servers. Est ce toujours le cas ?
Android COTS GPI HAL
GPI provides a wide set of primitives through the API level called Service Abstraction Level (SAL). This SAL layer encapsulates Agnos' HAL corresponding to the DEVICE layer. Integrating a new platform means overloading DEVICE behavior, i.e. coding into HAL. However, some GPI primitives may be overloaded depending on L3 needs:
gpiInitializeHSM (*): overload it to modify file references (not required for L2 TA)
gpiEMVGetCertificate (*): overload it to modify public keys look-up (not required for L2 TA)
gpiGetEMVCRL (*): overload it to modify revocated certificates look-up (not required for L2 TA)
gpiFindPANfromEFL (*): overload it to modify exception file parsing (not required for L2 TA)
Diagramme integration
Function:
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Open L2 API (OLA)
Diagramme integration
Function:
Connect to
Open L2 API interface is an abstraction of the card processing (alias L2. See also here More On Card Processing ), for EMV contact and EMV contactless systems. It is based on a simple set of primitives to ease L2 integration onto a payment application (alias L3).
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