EMVDecoder Toolkit is your all-in-one solution for payment card industry professionals, engineers, testers, and auditors. This app provides a comprehensive suite of tools for cryptography, card security, EMV, ISO 8583, and more—right from your mobile device.

Key Features:

- Cryptography Tools: DES/3DES, AES, SHA, and HMAC calculators for secure encryption, decryption, and hashing.
- Card Security: Generate and validate CVV, CVV2, CVC, and CAVV codes. Validate card numbers and check digits using the Luhn algorithm.
- PIN Tools: Calculate PIN blocks (ISO 9564, VISA, IBM 3624), PVV, PIN offsets, and perform PIN extraction and brute force analysis. Simulate HSM PIN operations.
- EMV & TLV: Parse TLV data and decode EMV tags for in-depth card data analysis.
- ISO 8583: Build and analyze bitmaps, parse and validate ISO 8583 messages, and work with TR-31 key blocks.
- Key Tools: Calculate KCV, split and share keys using Shamir’s Secret Sharing, and simulate HSM key operations.
- Luhn Tools: Validate PANs, calculate check digits, and generate test card numbers.
- Converters: Convert between ASCII, Hex, Binary, and various date/time formats.
- Field Decoders: Analyze POS data and decode entry mode fields.


the tool is useful for Payment system engineers, QA testers, security auditors, fintech developers, and anyone working with payment cards, POS, or transaction systems.