[HH] Internet of Things Festival (IoTfest) video

[Mark Komarinski]

On 2/22/2014 6:25 PM, Tom Metro wrote:
> I think the speaker before Jim Gettys was Jeff Schiller on "Security in
> IoT cannot be an afterthought!" He shared a security tip he learned from
> Bitcoin: Instead of embedding your public key in your firmware, to
> validate updates, which apparently makes your PKI more vulnerable to
> attack, you embed a hash of the key, and supply the public key with the
> update. And change your key for each update, which means you supply a
> new hash with the update for the key that will be used for next update.
>

Doesn't that mean that you have to install every update in sequence?