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 crate is Ada over the SDK’s C ABI. The native library (keynub_licdongle) is loaded at run time, so nothing is linked and no library path is needed at build time; take the library for your platform from the SDK repository’s natives/ folder and either put it on the system’s library path or name it with Set_Library_Path. Windows, Linux and macOS.