Tools to calculate Unique Key Per Transaction (UKPT) and Derived Unique Key Per Transaction (DUKPT) schemes, widely used in PIN pad security.
: The developer, EFTlab Ltd., recommends contacting them directly via their Contact Page for current downloads. bptools cryptographic calculator 2012 download link
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For detailed usage, EFTlab provides a series of online tutorials covering generic cryptography, EMV menus, and secure messaging. BP-Tools download | SourceForge.net