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 <[email protected]> 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 <[email protected]> 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 >>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> To unsubscribe, go to >>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
