Are you European? I don't understand that use of hinder. You mean prevent from using? Then no, I don't think preventing normal people from using encryption will prevent criminals from using encryption, and didn't mean to imply that

I'm not referring to hinder meaning prevent, I'm referring to how "hinder someone to use" is not grammatical. https://www.merriam-webster.com/sentences/hinder

To "hinder" means to make it more difficult to use something, or "to restrict" or "to prevent" someone from using it.

https://www.merriam-webster.com/thesaurus/hinder