Documentation

Simulate acquirer and issuer host responses for payment terminals and ATMs. Configure gateway types, transaction rules, and dynamic response placeholders.

Emulate a Thales PayShield 10K Hardware Security Module. Full support for 35+ host commands including key management, PIN operations, MAC, RSA, and more.

Simulate EMV smart card sessions, monitor APDU command/response traffic, parse TLV structures, and analyze transaction flows.

Symmetric and asymmetric encryption calculators: AES, DES/3DES, RSA, ECDSA, and Format-Preserving Encryption (FPE).

Message Authentication Code calculators including HMAC, CMAC, ISO 9797 MAC variants, ANSI X9.19, Retail MAC, and AS2805.

Derived Unique Key Per Transaction tools for AES (ANSI X9.24-3) and ISO 9797 (ANSI X9.24-1) variants. Derive transaction keys from BDK and KSN.

PIN block calculators (ISO 9564 formats 0–4, OEM variants), AES PIN blocks, IBM 3624 PIN offset, and VISA PVV calculation.

Generate and validate card security codes — Visa CVV/CVV2, MasterCard CVC2/CVC3, and American Express CSC.

DEA/3DES key utilities, key block generation (TR-31 & Thales), HSM-vendor key calculators (Thales, Futurex, Atalla, Safenet), keyshare splitting, and SSL certificate workflows.

EMV ATR parser, tag dictionary, data parser, APDU response decoder, SDA/DDA verification, application cryptogram generation, and CAP token computation.

ISO 8583 bitmap calculator, MDC hash, ZKA, AS2805 utilities, and other miscellaneous payment helpers.

Level 1 & Level 2 EMV testing and certification services for payment terminals and applications.

Scalable, cloud-hosted payment testing infrastructure for teams that need always-on simulation environments.

Enterprise transaction processing middleware for routing, switching, and managing payment flows at scale.

Custom payment kernel solutions for terminal manufacturers and payment application developers.

Project overview, installation instructions, and getting started guide on GitHub.

Download the latest version and review the changelog for new features, improvements, and bug fixes.