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"RKL"

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Diagram illustrating the Remote Key Loading (RKL) process

ATM

What Is RKL (Remote Key Loading)?

RKL is the process of distributing a TMK (Terminal Master Key) to each terminal from a central point. It is used to remotely load keys onto POS and ATM devices, loading TMKs onto an ATM's keypad or activating them on a POS.

Payment terminal running multiple bank applications as a shared POS

Payment Systems

What is a shared POS? Key points for projects and testing

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.

Illustration of a Terminal Master Key (TMK) securing a payment terminal

HSM & Security

What is TMK (Terminal Master Key)?

TMK stands for Terminal Master Key, a key-encrypting key distributed manually or automatically under a previously established TMK. It is used to distribute data encryption keys to an ATM or POS terminal within a local network.