(Application Request Cryptogram) for EMV smart card testing and development. Quick Overview arqcgen.exe
The Application Transaction Counter (increments with every transaction). Unpredictable Number: A 4-byte random value generated by the terminal. Transaction Data: arqcgenexe
A concatenated string of transaction-specific data (Amount, Currency, Date, etc.). Step-by-Step Generation Logic Key Derivation: The tool uses the PAN and PSN to derive a Unique Card Key (UDK) from the Issuer Master Key. Session Key Generation: It uses the ATC to derive a Session Key (Application Request Cryptogram) for EMV smart card testing