Can we use md5 or sha to check the dll

[Awareness]

Using LGPL version of Qt,can we check a Qt dll file in our app using md5/sha to see if the dll file is the original Qt dll file or not?It would prevent users from updating the dll with a newer version,so is it against LGPL licence?

[Santosh Reddy]

Using LGPL version of Qt,can we check a Qt dll file in our app using md5/sha to see if the dll file is the original Qt dll file or not?

Well technically it is possible.

It would prevent users from updating the dll with a newer version,so is it against LGPL licence?

I am not a legal guy, but IMO there is not a voilation of LGPL, because user can still replace the dll file with version of his choice. Apprantly your application will not work with other versions of dll, but hey that is your application's restriction, not dll's restriction.

[Awareness]

Thanks for your answer.