Technically encryption of the link won't solve characteristic authorisation issue, however it will provide a way to implement some basic app-level authorisation mechanisms, e.g. pin code / password authorisation (as you can exchange secure tokens freely).
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Technically encryption of the link won't solve characteristic authorisation issue, however it will provide a way to implement some basic app-level authorisation mechanisms, e.g. pin code / password authorisation (as you can exchange secure tokens freely).