KeyNubLicDongle - Client for the 'KeyNub' USB License Dongle

Verifies that a 'KeyNub' USB license dongle is genuine, reads and writes the license records it holds, reads and increments its monotonic counters, and encrypts data so that only a dongle can decrypt it. The work is done by the vendor's native library, which the package loads at run time; the package installs without it and reports where it looked. Runs on Windows, Linux and macOS.