Payment cryptography workflow library. EMV, DUKPT, PIN blocks, MAC, card validation, TR-31/TR-34, and HSM command inspection. Inspectable recipes for development, testing, and interoperability.

Card Payments Simulation Tool For Indie Devs : Core Card Switch Engine, Fraud Engine, ATM/POS GUI Simulator , Admin Dash (Real-time MSG Tracer). PCI-Safe , HSM Tokenization

The complete payment cryptography toolkit — 45+ tools for encryption, hashing, key management, PIN operations, and an interactive Thales payShield 10K HSM Simulator.

online TR-31, TR-34 calculator, ISO8583, payments, EMV, Acquirer simulator, Issuer simulator, Merchant, Visa, MasterCard, American Express, JCB, Vantiv, Moneris, Fiserv, Planet, Interac, Star, CIBC…

This fork extends CyberChef with a focused set of payment cryptography operations intended for engineering, debugging, and interoperability work in regulated payment environments.