[Cryptography] Suggestions for wearable wireless technology ?

[Charles Jackson]

On Sat, Oct 14, 2017 at 10:13 AM, Henry Baker <hbaker1 at pipeline.com> wrote:

> I'm working with a small medical device company which is making wearable
> devices.
>
> The problem is: what wireless technologies are there that have the
> following characteristics:
>
> * Extremely low power when not in use (most of the time)
> * Short range (body area network -- ~1 meter)
> * High data rates (10-100 Mbits/sec) occasionally -- e.g., in the doctor's
> office
> * Exceedingly robust: waterproof, even at scuba depths, useful in contact
> sports -- e.g., football; (radio doesn't have to *work* underwater, but it
> does have to *survive* being underwater)
> * Exceedingly secure & private -- e.g., no "Bluetooth beacons" that can be
> tracked by store monitors or street monitors
> * Relatively small & cheap in HW & SW (i.e., no 100MB or 1GB SW stacks!)



​Well, you asking for a lot.  And, you probably want it in relatively small
quantities (thousands not millions).

There are off-the-shelf WI-Fi modules that have much of what you want.  See
http://www.mouser.com/Embedded-Solutions/RF-Wireless-Modules/WiFi-80211-Modules/_/N-6l7qa/
.

Then, to get low-power create your own sleep/wake protocol  or have a
button that turns the unit on.  For robustness, do your own potting and
vibration isolation.

For security, do your own encryption of the payload.

Hope this helps.


Chuck
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