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HCE
The token used in HCE transactions contains more than just a new number derived from the card number. It also includes single-use keys, an expiration date, RSA keys and certificates, transaction limits, and an Application Transaction Counter (ATC).
Credit Card
While it is true that, with technological advancement, the trend of using payment transactions without a physical card via mobile phones has increased, there are many reasons why cards are still physically printed and delivered to customers.
Credit Card
Technology continues to make our lives easier and more secure. Old ID cards were just laminated paper; new ones became personalized and secure with biometric photos added alongside chip data.
Contactless
It is important to use contactless cards to prepare our payment habits for the future. In Turkey, one in every 3 cards and one in every 4 POS terminals is contactless-enabled, yet usage remains around 5%.
Merchant & POS
In payment systems, every exchange between POS devices and bank or payment institution systems runs on a specific messaging standard, generally based on ISO 8583. However, each country, bank, or switch network defines its own version of this standard.
Payment Systems
When POS and HOST transactions don't match at end-of-day, the end-of-day falls into batch upload. This article covers how the POS sends transactions via the 320 message, how HOST responds with 330, and how to monitor and resolve recurring batch upload failures.
Merchant & POS
The termination list is a list, fed by all banks, containing merchants whose merchant agreements have been terminated by banks, together with the reasons for termination. This list is maintained by BKM and offered to banks as a service. Merchants request…
Payment Systems
The configuration area in POS applications holds terminal number, merchant number, IP, port, APN and phone number information needed for POS setup, and can be managed manually or centrally.
Merchant & POS
No. Besides the terminal data, contactless limits can also be managed from the chip data. A “Use Merchant Contactless Limits” field decides which set of limits the POS applies.
ISO 8583
DE 52 — Personal Identification Number (PIN) Data: the field that holds the PIN data. PIN verification is carried out based on this field.
Payment Systems
A shared POS is a bank or institution terminal that can host more than one application. This post covers the software, APN and authorization steps, and the key test scenarios to cover in a shared POS project.
ISO 8583
F23 - CARD SEQUENCE NUMBER: Information used to distinguish cards sharing the same card number. For example, the Card Sequence Number is incremented by 1 when a card is renewed. In an authorization transaction, if the F22 value is '05x'...