EMV choose crypto method between SDA/DDA/CDA
I'm a newbie in emv world.
I'm in the third step. I have to manage the Offline Data Authentication.
How can I negotiate the correct way (SDA, DDA or CDA) with the ICC to perform offline auth?
To retrieve the AIP, according to "EMV Book 3 - Application Specification", use te Tag 0x80 Format 1 reply for GET PROCESSING OPTIONS contained:
x82: Application Interchange Profile (AIP), x94: Application File Locator (AFL).