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Production Kit
Deterministic reference tools you can trust for day-to-day work — BER-TLV dissectors, ISO-8583 helpers, hex and checksum utilities. No simulations, no illustrative caveats.
Paste an ISO 8583 message, get the MTI, bitmaps, and every data element decoded — BCD or ASCII, TPDU, and EMV field 55. Deterministic, offline.
Open utility →Paste an EMV hex buffer, get a parsed TLV tree with tag dictionary lookups. Deterministic, offline, safe for production use.
Open utility →Derive TDES (X9.24-1) and AES (X9.24-3) DUKPT keys from a BDK or IPEK and a KSN, then encrypt, decrypt or MAC with the PIN, MAC and data keys.
Open utility →Build or decode ISO 9564 PIN blocks in formats 0, 1, 2, 3 and 4 — in clear, with a TDES key, or AES for format 4.
Open utility →