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Securing the Internet of Things
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User Rank: Strategist
1/30/2015 | 1:33:18 PM
Re: Not enough power to do what is needed

Thank you for the thoughtful comment.  We very much agree with you on the importance of power consumption as a system constraint and potential inhibitor to strong security. Our researchers in Intel Labs are looking at very low power implementations of standard algorithms. As an example, we have implemented AES in about 2K gates using near threshold voltage (NVT) technology. This will result in lower bandwidth but will also consume much less power than more typical implementations.

Second we are experimenting with non-standard crypto primitives. As an example of this we are advocating the use of the Simon block cipher family, which can be implemented in as few as 700 gates. We have evaluated this design and believe there is enough public cryptanalysis that we can consider it secure for most IoT usages. We have also evaluated schemes for other primitives that show promise.  Lastly, it is our intention to work on low-power primitives in selected standards, for example, ISO/IEC JTC1 SC27.

User Rank: Strategist
12/11/2014 | 12:36:15 PM
Not enough power to do what is needed

Frequently what gets over looked when discussing the Internet of Things or Medical Devices especially implantable ones is the power it takes to run them.

Batteries have limited energy as we all know.  If you want to place an IoT device et.al. someplace that will be inaccessible you want it to run as long as possible.

Energy Harvesting is making fast in roads to charging batteries.  Still their energy is usually measured in Micro-watts.  Take a sensor under, or embedded in a bridge as an example.

To extend battery life IoT devices frequently run at low clock frequencies 4 MHz down to a few kHz for as long as operation takes, or the highest possible frequency for the shortest amount of time.
[ See CDC/NIOS document "A Technology Review of Smart Sensors with Wireless Networks for Applications in Hazardous Work Environments" by John J. Sammarco, Ph.D., P.E., Robert Paddock, CSQE, Edward F. Fries, and Vijia K. Karra, Ph.D. page 33.  www.wearablesmartsensors.com ]
Either way everything in these systems has to be viewed in terms of energy expended.

Most of the world is now accustomed to the desktop/phone/tablet etc where in comparison to an IoT device energy resources to run strong encryption algorithms, deal with strong authentication et.al. is infinite.  The IoT device doesn't have the energy available, with current technologies, to do what we'd really like to do when it comes to security that we think nothing about doing on the desktop et.al.

In the future hopefully We either have Mr Fusion as a power source or strong encryption algorithms that consume little in the way of energy...

Do you have any plans or suggestions?


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