Both free with an account, browser-first, built for engineers validating payment cryptography against the standards. The bench around them — named keys, test cards, replayable batteries — is the paid half.
The cryptographic toolkit.
Every operation you need to validate payment crypto — encryption, key blocks, EMV, PIN, parsers — running in your browser on synthetic test data.
Thales payShield, in the browser.
Practice HSM commands without hardware. A faithful Thales payShield 10K console — host commands, key management, PIN translation — with zero cost and zero install.
Claude Code, Cursor and ChatGPT call the tools.
A remote Model Context Protocol server. A coding agent asks KeyLab for the PIN block, the KCV, the TR-31 unwrap or the ARQC instead of guessing — the same proven code, over the wire.
Certified payment cryptography, on the bench.
A recorded course for engineers who integrate, test or operate payment cryptography. Every lesson ends with an exercise on the KeyLab bench; the exam issues a certificate with a verifiable number.