[ale] OT - Replacement Gate Remote

[Alex Carver]

The "stand by and clone someone" feature is mainly why they are no
longer available.  It wasn't even really the DMCA issues, it was
liability.  If the opener was easy to clone from any reasonable distance
then people could have their homes or businesses broken into by others.
 Early remotes were single-code devices but those proved very easy to
hack (one chip and not many codes to try).  The later ones have a base
code and a "randomized" code (it's actually a revolving fixed series).
Still can be hacked but it's a little less trivial because the revolving
series must be determined which takes several samples of data.

I've been working on my own using key crypto just as described (but not
the bluetooth part). :)    Going to try it with a door lock first.

On 2015-05-21 07:15, Scott Plante wrote:
> I wasn't making a suggestion for his particular need--I was asking about the security, or lack of, with these gate openers. Can someone just go buy one of these "cloning remotes" and stand by a gate when some enters, and have their own remote that easily? The build your own suggestion was tongue-in-cheek. 
> 
> ----- Original Message -----
> 
> From: "DJ-Pfulio" <DJPfulio at jdpfu.com> 
> To: ale at ale.org 
> Sent: Wednesday, May 20, 2015 11:50:20 AM 
> Subject: Re: [ale] OT - Replacement Gate Remote 
> 
> On 05/20/2015 11:18 AM, Scott Plante wrote: 
>> So can you just stand near the gate of someone's apartment with one of these 
>> things and wait for someone to open it, then have your own opener to come and 
>> go as you please? Maybe you should build them a new opener with RPi, 
>> Bluetooth, and public key encryption! 
> 
> Talk to a neighbor to borrow theirs for 10 min? 
> 
> 
> 
> 
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