| Practice | Implementation Tips | |----------|----------------------| | | Store private signing keys in hardware security modules (HSMs) and rotate them periodically. | | Use asymmetric cryptography | RSA/ECDSA signatures allow the client to verify codes without exposing the private key. | | Support offline activation | Provide a “license file” that can be generated on a web portal and imported, catering to restricted environments. | | Graceful degradation | If a license check fails, allow the user to continue with reduced functionality rather than a hard crash. | | Transparent renewal process | Offer a simple cwget --renew command that contacts the server to extend trial periods or upgrade tiers. | | Telemetry opt‑out | Give users a clear flag ( --no-telemetry ) to respect privacy while still collecting essential usage metrics. | | Documentation | Publish a step‑by‑step guide: “How to register cwget,” including screenshots of the registration dialog and common error messages. |
: The program automatically adjusts to the speed of the incoming CW signal. cwget registration code