<div dir="ltr">On the topic of NFC, though it's irrelevant to Nearby Share: there are several cheap phones that have NFC now, in fact I would say it's in the majority of new smartphones at this point, given that NFC components are commoditized and the software stack is mature and well standardized by now. Low end smartphone models like the Google Pixel a series, Samsung Galaxy A series, and the Apple iPhone SE have had NFC for several years. A used iPhone SE can be found for under $250 ( <a href="https://swappa.com/buy/apple-iphone-se-3rd-gen-2022">https://swappa.com/buy/apple-iphone-se-3rd-gen-2022</a> ) and Android phones for even less.<div><br></div><div>Side note: "dumb phones" are experiencing a bit of a revival. ( <a href="https://www.bbc.com/news/business-60763168">https://www.bbc.com/news/business-60763168</a> ) A possible side effect is lowering smartphone prices, at least for a little while.</div><div><br></div><div>For a little about how AirDrop and Nearby Share work, the diagram from the paper "A Billion Open Interfaces for Eve and Mallory: MitM, DoS, and Tracking Attacks on iOS and macOS Through Apple Wireless Direct Link" ( <a href="https://www.usenix.org/system/files/sec19-stute.pdf">https://www.usenix.org/system/files/sec19-stute.pdf</a> ) may be helpful.</div><div><br></div><div><img src="cid:ii_li5uwgpy0" alt="image.png" width="268" height="562"><br><div><br></div><div>The technologies in play are Bluetooth and peer-to-peer wifi. Bluetooth for discovery, and wifi for session establishment and high speed transfer. Peer-to-peer Bluetooth sharing has been around for decades and is really slow, so this is effectively a replacement using wifi. Apple had some interesting vulnerabilities arise ( <a href="https://www.wired.com/story/zero-click-ios-attack-project-zero/">https://www.wired.com/story/zero-click-ios-attack-project-zero/</a> ) shortly after release. Similarly, Microsoft had to work out some implementation bugs in Nearby Sharing (not to be confused with Android Nearby Share) that introduced a rather serious remotely exploitable vulnerability ( <a href="https://nvd.nist.gov/vuln/detail/CVE-2021-40464">https://nvd.nist.gov/vuln/detail/CVE-2021-40464</a> ) a couple years ago. Lastly we have Google's Nearby Share, which Drew mentioned, and it is the newest protocol and happens to be incompatible with the other two. Interoperability is clearly a mess. The concept is pretty well accepted now, but the implementation standards remind me of this XKCD cartoon:</div><div><br></div><div><img src="cid:ii_li5wm81b1" alt="image.png" width="500" height="283"><br></div><div><br></div><div>-Rich</div><div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, May 26, 2023 at 11:56 PM Drew King <<a href="mailto:dking65@kingconsulting.us">dking65@kingconsulting.us</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 style="padding-bottom:1px">
<p><font size="5">Bob,</font></p>
<p><font size="5">To my knowledge, NFC Is a cell phone thing not a
Windows thing therefore is not a factor in this technology.<br>
</font></p>
<p><font size="5">NFC is always DISABLED on my cell. This software
does <font color="#800000"><b>not</b></font> use 5G or nfc. You
just need to be on the same wifi network. Bluetooth might work
also, but I'm not certain of that. <br>
</font></p>
<p><font size="5">Yes, Apple has had this feature for quite some
time To go from I O S to I O S and perhaps MacOS.</font></p>
<p><font size="5">Android phones no matter what kinds you have
always had the ability to do nearby sharing to other Android
phones, this software adds the capability to do that between
Android and windows.</font></p>
<p><font size="5">There is another program in the Google play app
store that can transfer files from an Android phone to a Windows
computer using the windows nearby sharing technology without
needing to install any software on windows. Because you're not
installing anything on windows it only works in one direction
from your Android device to Windows. the hyperlink to the app in
the Google play app store is listed below.. <br>
</font></p>
<p><br>
</p>
<div>On 5/26/2023 11:46 PM, Robert Primak
wrote:<br>
</div>
<blockquote type="cite">
<div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px">
<div dir="ltr">Be aware, NFC (Android) only
exists in a few, mostly 5G Cellular capable, smartphones right
now. None of these phones is currently priced under the
high-$400.00 range. For me, that's a lot of money to pay just
to share files with nearby devices and make contactless
payments. Just making these payments signals people that your
phone is worth stealing. </div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Apple (iOS) has had their
version of Nearby Sharing for a lot longer than the Android
phones. But just showing that you have an iPhone capable of
contactless payments sends the same signal that the phone is
worth stealing. </div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Just my opinions.</div>
<div><br>
</div>
<div dir="ltr">-- Bob Primak</div>
<div dir="ltr"><br>
</div>
</div>
<div id="m_5833966148900738705yahoo_quoted_5735246413">
<div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
<div> On Friday, May 26, 2023 at 11:10:39 PM EDT, Drew King
<a href="mailto:dking65@kingconsulting.us" target="_blank"><dking65@kingconsulting.us></a> wrote: </div>
<div><br>
</div>
<div><br>
</div>
<div>
<div id="m_5833966148900738705yiv0558954740">
<div>
<p>All,</p>
<p>I will demo this at the June Windows 11 meeting.<br>
</p>
<p>This software is still in beta and I have it
installed on two machines and so far it works
flawlessly. It's written by Google.<br>
</p>
<p>It lets you use the Android nearby share feature that
normally only nearby shares with other Android phones
with Windows computers also.</p>
<p>If you select and long press text or a hyperlink or a
file, android pops up a window and there is an icon
that symbolizes sharing that is a three-way star
looking thing and then nearby share will be one of the
options. When probably installed, your Windows
computer will show up as one of the devices that you
can send the file or hyperlink to. <br>
</p>
<p><img alt=""></p>
<p><br>
</p>
<p><img alt="" width="622" height="870"></p>
<p><br>
</p>
<p>You can send text that you select on your Android
app, and you can also send hyperlinks in addition to
files.</p>
<img alt="" width="1071" height="573">
<p><font size="5"><a rel="nofollow noopener noreferrer" href="https://android.com/better-together/nearby-share-app/" target="_blank">https://android.com/better-together/nearby-share-app/</a></font></p>
<p><br>
</p>
<p>There is also a separate Android software program in
the Google Play App Store that lets you do the same
thing but only in one direction . Developer is working
on two way. The big difference with this software
program is you don't need to install or modify windows
in any way whatsoever. The application on Android can
send files to windows that have nearby share enabled.
Nearby share on windows must be enabled for this to
work.<br>
</p>
<p><font size="6">Nearby Sharing Windows 10 / 11</font></p>
<p><a rel="nofollow noopener noreferrer" href="https://play.google.com/store/apps/details?id=de.shortdev.nearby_sharing_windows" target="_blank">https://play.google.com/store/apps/details?id=de.shortdev.nearby_sharing_windows</a></p>
<p><br>
</p>
<div>-- <br>
Drew King</div>
</div>
</div>
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