[Cryptography] Suggestions for wearable wireless technology ?

Charles Jackson clj at jacksons.net
Sat Oct 14 18:22:59 EDT 2017

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

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.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.metzdowd.com/pipermail/cryptography/attachments/20171014/d747a1d0/attachment.html>

More information about the cryptography mailing list