Door badges that only carry a serial number are easy to clone. Java Cards for access control replace that number with a cryptographic exchange: the card proves it holds a secret key, and the reader never sees the key itself. Because Java Card is programmable, you can also run your access applet next to PKI login or payment applets on the same chip. This guide walks you through the design of an access-control applet, GlobalPlatform provisioning, security domain setup and the integration work with door readers.

TSYS MultiPass certification complements existing Fiserv Nashville support, expanding terminal options for payment providers, resellers, and merchants.

What are the best programmable smart cards? For most teams building ID, PKI or multi-application card programs, the answer is a Java Card: a smart card that runs your own applets on an open, standard platform instead of locking you into one vendor's fixed functions. Choosing between Java Cards still takes care. Memory, chip, cryptographic support and security certification decide whether a card fits your project or stalls it. This guide compares FEITIAN's Java Cards on those points and walks you through development requirements and multi-application setup.