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Hi, I would like to implement a Run-time license checking mechanism that will enable or disable some parts of my LabVIEW API depending on a license status. After reading numerous discussions here on the forum (We need a new password cracker :( , Low level VI data editor (warning: not for production use!) , I found some more hidden INI keys, Password Security in LabVIEW) I realised few things: - reverse engineering in a LabVIEW-related field seems to be a doable task for some smart people, - password protection on block diagrams does not protect your IP, it is more of a "read-only" or a "private property" sign, - removing block diagrams or compiling it into an executable are the ways to go, and finally, - there are few tools out there, that seem to have a potential to "unflatten" VI data and modify/extract its data even without block diagrams. Back to my task. I decided to remove block diagrams. Inside my protected VI I call an external library that does the actual license checking. So the code only gets this status and returns it back to other VIs. Then the VIs do not perform their main functions, and the user gets an error. Do you think I am safe here? Is it possible to extract sensitive string information out of my VIs (without BD)? Is there a way to change wiring rules/connector pane on my VIs? Should I worry about DLL hijacking? Does NI have some kind of a tutorial for protecting your run-time API? How do you protect your API knowing all that? Do you sleep well? Thanks
WireFlow releases security dongles for all LabVIEW targets
Mellroth posted a topic in AnnouncementsWireFlow releases the first Security suite software that is natively supported on any LabVIEW platform with an available USB port, including VxWorks and Pharlap based Real-Time targets. The security suite addresses IP protection issues for the LabVIEW platforms; not only does it add copy protection, but also enables user identification and feature control. To learn more, please visit http://www.wireflow.se/news/SecuritySuite_news /The WireFlow Team