<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hi,</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Well trod ground, certainly.</div><div id="AppleMailSignature">Recent ham radio systems like Echolink, Winlink, IRLP, etc. come to mind.</div><div id="AppleMailSignature">To access these systems, the individual ham is authenticated and authorized.</div><div id="AppleMailSignature">If this is done by hand, individually....good luck with that.</div><div id="AppleMailSignature">A full time job for somebody with the resultant delays in authorization.</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Authentication is not to stop the enterprising, criminal element to usurp an old "CW only" operator's call sign and operate digitally through the satellite, even with an on-board data base.</div><div id="AppleMailSignature">Such old "CW only" operator will never have the reason to suspect his callsign is being used nefariously....</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Most of the client ground station hardware will be home brewed anyway, with no authentication chips in place.</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Maybe, authentication via cell phone before each QSO, is what is needed.</div><div id="AppleMailSignature">The way on-line banks now authenticate customers for on-line banking transactions.</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Bernard,</div><div id="AppleMailSignature">KC9SGV<br><br>Sent from my iPad</div><div><br>On Aug 19, 2019, at 9:36 AM, Michelle Thompson <<a href="mailto:mountain.michelle@gmail.com">mountain.michelle@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div><div dir="auto">This is one of the biggest reasons our designs are regenerative repeaters with authentication and (optional) authorization. </div></div><div dir="auto"><br></div><div dir="auto">Background info is in the repo, but the essential mechanism is what LotW uses combined with white and black lists. Requires a database in the payload and enough horsepower to afford the overhead.</div><div dir="auto"><br></div><div dir="auto">Fortunately, it’s well trod ground. It would be even better with a working authentication/authorization demo, but we just got a good channelizer working. We are much closer to a working end to end demo than we were just a few weeks ago. </div><div dir="auto"><br></div><div dir="auto">*Enabling legacy traffic through the aggregator is a special case. The aggregated traffic is tagged, but the individual traffic channels (FM hts, p25, d-star) would not necessarily be individually authenticated. </div><div dir="auto"><br></div><div dir="auto">-mdt</div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Aug 19, 2019 at 07:02 John Klingelhoeffer via Ground-Station <<a href="mailto:ground-station@lists.openresearch.institute">ground-station@lists.openresearch.institute</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:large">Unless we configure an appropriate authentication system, I am afraid we will suffer a similar fate. So much for open transponders. </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Aug 18, 2019 at 1:07 PM KC9SGV via Ground-Station <<a href="mailto:ground-station@lists.openresearch.institute">ground-station@lists.openresearch.institute</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div>I agree and understand that.</div><div id="m_5062954074284006050gmail-m_5505849600401305828AppleMailSignature">So let us concentrate on getting our very own, very legal ham GEO sat up for Region 2 ASAP.</div><div id="m_5062954074284006050gmail-m_5505849600401305828AppleMailSignature">Hopefully these old 1970's technology military comms sats are not completely abandoned by the various Western militaries.</div><div id="m_5062954074284006050gmail-m_5505849600401305828AppleMailSignature">For fun, revisit the movie "Space Cowboys" with Clint Eastwood now on Netflix.</div><div id="m_5062954074284006050gmail-m_5505849600401305828AppleMailSignature">Somewhat related.</div><div id="m_5062954074284006050gmail-m_5505849600401305828AppleMailSignature"><br></div><div id="m_5062954074284006050gmail-m_5505849600401305828AppleMailSignature">Bernard,</div><div id="m_5062954074284006050gmail-m_5505849600401305828AppleMailSignature">KC9SGV</div><div id="m_5062954074284006050gmail-m_5505849600401305828AppleMailSignature"><br><br>Sent from my iPad</div><div><br>On Aug 18, 2019, at 12:16 PM, Timestep <<a href="mailto:help@time-step.com" target="_blank">help@time-step.com</a>> wrote:<br><br></div><blockquote type="cite"><div>
<div><font size="2" face="Arial">It's easy world wide communication. However
the USA Government will track you down...........</font></div>
<div><font size="2" face="Arial"></font> </div>
<div><font size="2" face="Arial">Regards</font></div>
<div><font size="2" face="Arial"></font> </div>
<div><font size="2" face="Arial">Dave G 4IUG</font></div>
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</blockquote></div></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr">-Michelle W5NYV<br><br><div dir="ltr">"Potestatem obscuri lateris nescis."<br></div><div><br></div></div></div></div></div></div></div></div>
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