#
tr-31
Here are 5 public repositories matching this topic...
This fork extends CyberChef with a focused set of payment cryptography operations intended for engineering, debugging, and interoperability work in regulated payment environments.
cryptography fintech hsm dukpt emv acquirer iso-8583 cyberchef pin-block tr-31 payment-cryptography payment-testing
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Updated
Sep 21, 2026 - JavaScript
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.
cryptography fintech hsm dukpt emv acquirer iso-8583 cyberchef pin-block tr-31 payment-cryptography payment-testing
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Updated
Aug 25, 2026
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