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Author Topic: Key Fob security/encryption  (Read 3405 times)

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Offline Automate

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Key Fob security/encryption
« on: May 29, 2014, 12:14:08 am »
The buttons on the Key Fob available for purchase with the Almond+ appear to be designed for arming and disarming a security system.  Does the Key Fob support encryption?  Is there anything preventing someone from sniffing/capturing a transmission from the Key Fob and cloning the signal to disarm a system built using the Key Fob?

LGNilsson

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Re: Key Fob security/encryption
« Reply #1 on: May 29, 2014, 12:52:15 am »
As it's a ZigBee key fob it's using standard ZigBee encryption i.e. 128-bit.

Offline Automate

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Re: Key Fob security/encryption
« Reply #2 on: May 29, 2014, 08:29:13 am »
But Zigbee on its own does not enforce full encryption.  This page describes how encryption enabled and non-encrypted Zigbee nodes can interact with each other. http://www.digi.com/support/kbase/kbaseresultdetl?id=2214
« Last Edit: May 29, 2014, 08:31:45 am by Automate »

LGNilsson

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Re: Key Fob security/encryption
« Reply #3 on: May 29, 2014, 10:06:12 am »
I'm having the software team check it, but the reply I got from them seemed to suggest the key fob is using encrypted signalling.

Offline Automate

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Re: Key Fob security/encryption
« Reply #4 on: May 29, 2014, 12:43:29 pm »
Thanks for looking into it.  I know with Zwave, some devices such as locks have a higher level of security than other devices such as temperature sensor.  Since Zigbee is not as popular, I'm not finding as much information about it.  I did find this article http://www.sensor-networks.org/index.php?page=0903503549 which goes into a lot of details but still does not tell me how do I know if a given device is using the highest level of security.
« Last Edit: May 29, 2014, 12:45:37 pm by Automate »

LGNilsson

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Re: Key Fob security/encryption
« Reply #5 on: May 29, 2014, 10:58:44 pm »
I've sent an email to the manufacturer as well to check with them, as I guess they can give us a definitive answer.

Offline Automate

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Re: Key Fob security/encryption
« Reply #6 on: June 06, 2014, 12:20:26 pm »
I've sent an email to the manufacturer as well to check with them, as I guess they can give us a definitive answer.
Any update on this?  I see we need to finalize our selection by Sunday.

LGNilsson

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Re: Key Fob security/encryption
« Reply #7 on: June 06, 2014, 10:38:16 pm »
Sorry, yes, the communication is encrypted, just as it would be with a door lock for example.

 

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