[EAS] This weeks IPAWS RWT

Mike Tosch mike.tosch at gmail.com
Mon Apr 26 16:04:07 CDT 2021


Thank you Harold!  Your note is quite appreciated.

Mike

On Mon, Apr 26, 2021 at 1:48 PM Harold Price <hprice at sagealertingsystems.com> wrote:
>Mike and others:

>There is much to be learned from testing, and even more so for failed tests.  Here is the takeaway from the April 26 Monday failed RWT test for those on the receiving end.
>The test messages had a mismatch between the digest (think checksum) inside the message, and the digest computed by receivers.  This is a part of the validation for an alert and checking it is required by 11.56(c) - "EAS Participants shall configure their systems to reject all CAP-formatted EAS messages that include an invalid digital signature."
>Today's RWTs had a mismatch between the message digest and the computed digest.  All devices should have rejected it.



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