When a cardholder enters their PIN at a modern SmartPOS terminal, something subtle but critical happens behind the scenes. The terminal encrypts that PIN using AES and formats it according to ISO 9564 …
Every time you tap or insert a chip card, the card generates a unique cryptogram — a cryptographic proof that this specific transaction is legitimate and hasn’t been seen before. This single …
Author: Vincent Bevia, MSc Computer Science — University of Liverpool Introduction RSA (Rivest–Shamir–Adleman) is one of the first public-key cryptosystems and is widely used for secure data …
Modern payment terminal architectures increasingly rely on standardized protocols to reduce integration costs, ensure interoperability, and simplify expansion across markets. Historically, SmartPOS …
Types of POS Terminals, the Services They Offer, and Where They Fit Modern POS environments are built from a small number of terminal families, each tuned to a specific risk profile, user experience, …
This page shows a full interactive layout explaining DUKPT / IPEK derivation and terminal key injection. The interactive example is anchored in the key-management and POS security model described in …
Track 2 is the numeric-only magnetic-stripe data format defined in ISO/IEC 7813, with a maximum length of 40 characters. The discussion here complements the broader POS and EMV architecture material …
Most developers working with payments eventually run into EMV — often described as complicated, arcane, or impossible to understand without a 300-page spec. The reality is simpler: EMV is just a …
A Point-of-Sale (POS) system is the starting point of nearly every electronic payment. Although it looks simple to the end user — tap a card, enter a PIN, get a receipt — a POS is actually a secure, …
Welcome to Corebaseit — my blog on POS, EMV, payments, and AI. I’m Vincent Bevia. I work on payments at Multisafepay (part of Ant Group), and I’ve spent years in POS architecture, EMV, and …