>> I wonder if there could be commercial interest in cryptographically secure garage door openers?
>Probably not. Mainly because breaking a window or crowbarring a door is a lot less expensive and a lot faster.
It's also a lot more likely to attract attention of bystanders.
Another concern may be insurance. In my area of the world, insurance companies generally refuse to pay out for burglaries unless there is evidence of a break-in (a broken window, forced door or something like that). This would likely not be covered. If this kind of device became popular with thieves like the car keyless entry hacks have, I can see there being a demand for something like this.
>Probably not. Mainly because breaking a window or crowbarring a door is a lot less expensive and a lot faster.
It's also a lot more likely to attract attention of bystanders.
Another concern may be insurance. In my area of the world, insurance companies generally refuse to pay out for burglaries unless there is evidence of a break-in (a broken window, forced door or something like that). This would likely not be covered. If this kind of device became popular with thieves like the car keyless entry hacks have, I can see there being a demand for something like this.