[time-nuts] DHS Resilient PNT Conformance Framework

[Bob kb8tq]

Hi

Gee, GPS modules that go nuts and stay nuts after getting hit with this or that.
I haven’t seen any of that since I retired …. :)

Bob

> On Dec 17, 2020, at 5:30 PM, Magnus Danielson <magnus at rubidium.se> wrote:
> 
> Hi Bob,
> 
> Yes, there is that too. NIST insisted to have me involved, so I got
> involved.
> 
> This is pretty high level, because it was needed, but many low-level
> details was discussed and then we backed out with that common ground.
> Some of the IT-security approaches does not really work on the
> RF-interface. It's not that it can't be hacked, but it works so
> differently and with much lower bit-rate... and one-way, that the
> security analysis becomes quite different about how attacks can be done.
> After that we concluded it's good to mention, but this is not relevant
> for all interfaces. :)
> 
> There is many ways to achieve the different levels, but we wanted to
> make a number of key rules to sort things out, they form a form of
> minimum set of requirements. Normal receivers achieve level 0.
> 
> Some receivers "hang" after being upset by some input. "hang" to the
> level it needs vendor intervention. So one learning is that the user
> must be able to force the receiver into a "known state".
> 
> Cheers,
> Magnus
> 
> On 2020-12-17 19:50, Bob kb8tq wrote:
>> Hi
>> 
>> Pretty suspicious looking list of contributors. Very much so about half way
>> down the list :) …. congratulations !!! ( I guess …)
>> 
>> Bob
>> 
>>> On Dec 17, 2020, at 12:52 PM, Magnus Danielson <magnus at rubidium.se> wrote:
>>> 
>>> Fellow time-nuts,
>>> 
>>> DHS just published the work on Resilient PNT Conformance Framework, that
>>> has been in the works since last year. This is intended to be the
>>> framework for which multiple sectors align their standards, and a wide
>>> range of interest was involved.
>>> 
>>> Hope it can be interesting reading for you.
>>> 
>>> https://www.dhs.gov/publication/st-resilient-pnt-conformance-framework
>>> 
>>> Cheers,
>>> Magnus
>>> 
>>> 
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