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EMV ARQC/ARPC simulator
Play both sides of a chip transaction: derive a card's keys from an issuer master key, compute a real ARQC cryptogram, then watch the issuer independently re-derive everything and answer with an ARPC the card verifies on its own.
What's happening under the hood →·Read the The Data Encryption Standard (DES) module for the full explanation →·See the EMV chip authentication: the conversation behind every chip transaction use case →
1. Issuer generates its master key; card carries a PAN, PSN, and ATC
One Issuer Master Key (IMK) protects every card the issuer has in circulation.