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M425 I
NSTALLATION GUIDE 7
Acronym Definitions
Acronyms are used in place of the full definition. Table 2 presents acronyms and
their definitions.
Table 2 Acronym Definitions
Acronym Definitions
AES Advanced Encryption Standard Algorithm
ARM Advanced RISC Machine
CTLS Contactless Reader
DUKPT Derived Unique Key Per Transaction Method as defined in the
VISA’s POS Equipment Requirement: PIN processing and Data
Authentication, International Version 1.0, August 1988
ECR Electronic Cash Register
EMV Europay, MasterCard and Visa Standard
MSAM Multiple Secure Access Module
MSR Magnetic Swipe Reader
NFC Near Field Communication
PIN Personal Identification Number
POS Point-of-Sale
QR Code Quick Response Code
SAM Secure Access Module
SCR Smart Card Reader
SRED Secure Reading and Exchange of Data
TF TransFlash
PED PIN Entry Device
USB Universal Serial Bus
Wi-Fi Wireless Fidelity
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