Card, key and message tools. Right beside your logs.

What’s inside

• Cryptography: DES and Triple DES, AES, HMAC, SHA-1 and SHA-256, ISO 9797-1 MACs and key check values.
• PINs and cards: ISO 9564 PIN blocks, Visa PVV, IBM 3624 PIN offsets, CVV and CVC, and Luhn checks.
• EMV: TLV parsing, TVR, TSI, AIP, CVM and terminal capability decoding, issuer application data, and Visa and Mastercard cryptograms.
• Keys and messages: TR-31 key block decoding, ISO 8583 bitmaps, and IPM clearing files to JSON and back.
• Reference: an EMV tag dictionary, countries, currencies and merchant category codes.
• Test card numbers from test-only ranges.

Your keys stay yours

• Everything runs on your Mac. Nothing is sent anywhere.
• Keys, PINs and card details are hidden until you choose to show them, and so are secret results.
• They are never logged, saved or recorded in macros, and they are cleared when you close the window.

Works with your documents

• Use the selection as input, and put a result back as one undo step.
• Large IPM files are read in a stream, so memory stays small.
• Every tool shows where its details come from. A few rely on specifications that aren’t public; those say so instead of guessing.

More features