[EAS] Next Generation

[ed.czarnecki]

Internet is the weak link in the equation.  However the authenticator could change just once a week or month.  That's why I was musing over FSK, or any other resilient path.  But, so long as an EAS device could get access to IPAWS once a week to obtain an authenticator over Internet (and remember we're already polling their servers on average once per 60 seconds, 24/7/365).

This could work for authentication of national alerts (EAN, NPT).  I need to think more about the challenge of authenticating alerts that come from local and state level EAS systems, CAP and/or legacy EAS.  And weather alerts from NWR.  The ecosystem of alert originators and different origination technologies expand dramatically at that point.

-------- Original message --------
From: Adrienne Abbott
charter.net>
radiolists.net>

Would this still work if the Internet was unavailable? If only the Legacy
version of EAS was working, how would stations double-check the random code?

Barry wrote:
As has been noted, there are quite a few examples
        of EAS on the YouTube and other places. There are
        even advice pages on how to "beat" EAS.

        Ed, can you tell us how simple/difficult it would be
        to add a place for downloading the "random" code
        for the day and be available for cross-checking?
        Something the coders could do in a short time?

        Perhaps changing the "EAN" to the random code, which
        in turn         could be "decoded" to "EAN" at the machine would
        be a combination of both approaches??

        Those alone would solve 99% of all potential "hacks"
        into the system. Short of putting a lock box around
        all machines, someone who will do anything to get
        control could still get in somewhere.

Adrienne Abbott
Nevada EAS Chair

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