Hide Bluetooth Broadcasthttps://devzone.nordicsemi.com/f/nordic-q-a/96662/hide-bluetooth-broadcastHello, we are working on Bluetooth. We want to keep the Bluetooth connection private. Not everyone should see the link. Especially after a connection is established with a device, other devices should not see and detect this broadcast. How can we takeen-USTelligent Community 13Wed, 22 Feb 2023 20:57:36 GMTRE: Hide Bluetooth Broadcasthttps://devzone.nordicsemi.com/thread/411491?ContentTypeID=1Wed, 22 Feb 2023 20:57:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fa220bb4-98d5-49f7-b33f-0268882c2bdaJoakim Jakobsen[quote user="YLmaz"]Wifi modems can Hide SSID[/quote] <p>Are you developing a WIFI modem? Or are we talking about BLE here?</p> <p>If you are talking about BLE, refer to my previous answer.</p> <p>Br, <br />JOakim</p><div style="clear:both;"></div>RE: Hide Bluetooth Broadcasthttps://devzone.nordicsemi.com/thread/411339?ContentTypeID=1Wed, 22 Feb 2023 11:48:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6ced8562-4334-4964-afb1-68cf968ae64aYLmaz<p>Hello,</p> <p></p> <p>Thank you for answer.</p> <p><span>Wifi modems can Hide SSID, and if a device now SSID can connect it.&nbsp; We need like this.&nbsp;</span><span class="c-mrkdwn__br" data-stringify-type="paragraph-break"></span><span>Server making broadcast but no one can see it. Our client know this hidden server UID and connects.</span><span class="c-message__edited_label" dir="ltr" data-sk="tooltip_parent">&nbsp;</span></p> <p><span>How can we provide such a solution to our customer?</span></p> <div id="WidgetFloaterPanels" class="LTRStyle" style="direction:ltr;display:none;text-align:left;"> <div id="WidgetFloater" style="display:none;"> <div id="WidgetLogoPanel"><span id="WidgetTranslateWithSpan"><span>TRANSLATE with </span></span> <span id="WidgetCloseButton" title="Exit Translation">x</span></div> <div id="LanguageMenuPanel"> <div class="DDStyle_outer"><span id="__LanguageMenu_header" class="DDStyle">English</span> <div style="left:0;position:relative;text-align:left;"> <div style="position:absolute;"> <div id="__LanguageMenu_popup" class="DDStyle" style="display:none;"> <table id="LanguageMenu" border="0"> <tbody> <tr> <td><a href="#ar">Arabic</a></td> <td><a href="#he">Hebrew</a></td> <td><a href="#pl">Polish</a></td> </tr> <tr> <td><a href="#bg">Bulgarian</a></td> <td><a href="#hi">Hindi</a></td> <td><a href="#pt">Portuguese</a></td> </tr> <tr> <td><a href="#ca">Catalan</a></td> <td><a href="#mww">Hmong Daw</a></td> <td><a href="#ro">Romanian</a></td> </tr> <tr> <td><a href="#zh-CHS">Chinese Simplified</a></td> <td><a href="#hu">Hungarian</a></td> <td><a href="#ru">Russian</a></td> </tr> <tr> <td><a href="#zh-CHT">Chinese Traditional</a></td> <td><a href="#id">Indonesian</a></td> <td><a href="#sk">Slovak</a></td> </tr> <tr> <td><a href="#cs">Czech</a></td> <td><a href="#it">Italian</a></td> <td><a href="#sl">Slovenian</a></td> </tr> <tr> <td><a href="#da">Danish</a></td> <td><a href="#ja">Japanese</a></td> <td><a href="#es">Spanish</a></td> </tr> <tr> <td><a href="#nl">Dutch</a></td> <td><a href="#tlh">Klingon</a></td> <td><a href="#sv">Swedish</a></td> </tr> <tr> <td><a href="#en">English</a></td> <td><a href="#ko">Korean</a></td> <td><a href="#th">Thai</a></td> </tr> <tr> <td><a href="#et">Estonian</a></td> <td><a href="#lv">Latvian</a></td> <td><a href="#tr">Turkish</a></td> </tr> <tr> <td><a href="#fi">Finnish</a></td> <td><a href="#lt">Lithuanian</a></td> <td><a href="#uk">Ukrainian</a></td> </tr> <tr> <td><a href="#fr">French</a></td> <td><a href="#ms">Malay</a></td> <td><a href="#ur">Urdu</a></td> </tr> <tr> <td><a href="#de">German</a></td> <td><a href="#mt">Maltese</a></td> <td><a href="#vi">Vietnamese</a></td> </tr> <tr> <td><a href="#el">Greek</a></td> <td><a href="#no">Norwegian</a></td> <td><a href="#cy">Welsh</a></td> </tr> <tr> <td><a href="#ht">Haitian Creole</a></td> <td><a href="#fa">Persian</a></td> <td></td> </tr> </tbody> </table> </div> </div> </div> </div> </div> <div id="CTFLinksPanel"><span id="ExternalLinksPanel"><a id="HelpLink" title="Help" href="https://go.microsoft.com/?linkid=9722454" rel="noopener noreferrer" target="_blank"> </a> <a id="EmbedLink" title="Get this widget for your own site"></a> <a id="ShareLink" title="Share translated page with friends"></a> </span></div> <div id="FloaterProgressBar"><span id="ProgressFill"></span></div> </div> <div id="WidgetFloaterCollapsed" style="display:none;"><span>TRANSLATE with </span></div> <div id="FloaterSharePanel" style="display:none;"> <div id="ShareTextDiv"><span id="ShareTextSpan"> COPY THE URL BELOW </span></div> <div id="ShareTextboxDiv"><!--a id="TwitterLink" title="Share on Twitter"> <img id="TwitterImg" /></a> <a--> <a id="EmailLink" title="Email this translation"></a> </div> <div id="ShareFooter"><span id="ShareHelpSpan"><a id="ShareHelpLink"></a> </span> <span id="ShareBackSpan"><a id="ShareBack" title="Back To Translation"></a> Back</span></div> </div> <div id="FloaterEmbed" style="display:none;"> <div id="EmbedTextDiv"><span id="EmbedTextSpan">EMBED THE SNIPPET BELOW IN YOUR SITE</span> <a id="EmbedHelpLink" title="Copy this code and place it into your HTML."></a> </div> <div id="EmbedTextboxDiv"></div> <div id="EmbedNoticeDiv"><span id="EmbedNoticeSpan">Enable collaborative features and customize widget: <a href="http://www.bing.com/widget/translator" rel="noopener noreferrer" target="_blank">Bing Webmaster Portal</a></span></div> <div id="EmbedFooterDiv"><span id="EmbedBackSpan">Back</span></div> </div> </div><div style="clear:both;"></div>RE: Hide Bluetooth Broadcasthttps://devzone.nordicsemi.com/thread/411338?ContentTypeID=1Wed, 22 Feb 2023 11:47:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:935efe43-11bc-4c36-bf21-becbe1e1f186YLmaz<p>Hello,</p> <p>Thanks for your reply.</p> <p>Wifi modems can Hide SSID, and if a device now SSID can connect it. We need like this.<br />Server making broadcast but no one can see it. Our client know this hidden server UID and connects.</p> <p></p> <p>How can we provide such a solution to our customer?</p> <p></p> <p></p> <div id="WidgetFloaterPanels" class="LTRStyle" style="direction:ltr;display:none;text-align:left;"> <div id="WidgetFloater" style="display:none;"> <div id="WidgetLogoPanel"><span id="WidgetTranslateWithSpan"><span>TRANSLATE with </span></span> <span id="WidgetCloseButton" title="Exit Translation">x</span></div> <div id="LanguageMenuPanel"> <div class="DDStyle_outer"><span id="__LanguageMenu_header" class="DDStyle">English</span> <div style="left:0;position:relative;text-align:left;"> <div style="position:absolute;"> <div id="__LanguageMenu_popup" class="DDStyle" style="display:none;"> <table id="LanguageMenu" border="0"> <tbody> <tr> <td><a href="#ar">Arabic</a></td> <td><a href="#he">Hebrew</a></td> <td><a href="#pl">Polish</a></td> </tr> <tr> <td><a href="#bg">Bulgarian</a></td> <td><a href="#hi">Hindi</a></td> <td><a href="#pt">Portuguese</a></td> </tr> <tr> <td><a href="#ca">Catalan</a></td> <td><a href="#mww">Hmong Daw</a></td> <td><a href="#ro">Romanian</a></td> </tr> <tr> <td><a href="#zh-CHS">Chinese Simplified</a></td> <td><a href="#hu">Hungarian</a></td> <td><a href="#ru">Russian</a></td> </tr> <tr> <td><a href="#zh-CHT">Chinese Traditional</a></td> <td><a href="#id">Indonesian</a></td> <td><a href="#sk">Slovak</a></td> </tr> <tr> <td><a href="#cs">Czech</a></td> <td><a href="#it">Italian</a></td> <td><a href="#sl">Slovenian</a></td> </tr> <tr> <td><a href="#da">Danish</a></td> <td><a href="#ja">Japanese</a></td> <td><a href="#es">Spanish</a></td> </tr> <tr> <td><a href="#nl">Dutch</a></td> <td><a href="#tlh">Klingon</a></td> <td><a href="#sv">Swedish</a></td> </tr> <tr> <td><a href="#en">English</a></td> <td><a href="#ko">Korean</a></td> <td><a href="#th">Thai</a></td> </tr> <tr> <td><a href="#et">Estonian</a></td> <td><a href="#lv">Latvian</a></td> <td><a href="#tr">Turkish</a></td> </tr> <tr> <td><a href="#fi">Finnish</a></td> <td><a href="#lt">Lithuanian</a></td> <td><a href="#uk">Ukrainian</a></td> </tr> <tr> <td><a href="#fr">French</a></td> <td><a href="#ms">Malay</a></td> <td><a href="#ur">Urdu</a></td> </tr> <tr> <td><a href="#de">German</a></td> <td><a href="#mt">Maltese</a></td> <td><a href="#vi">Vietnamese</a></td> </tr> <tr> <td><a href="#el">Greek</a></td> <td><a href="#no">Norwegian</a></td> <td><a href="#cy">Welsh</a></td> </tr> <tr> <td><a href="#ht">Haitian Creole</a></td> <td><a href="#fa">Persian</a></td> <td></td> </tr> </tbody> </table> </div> </div> </div> </div> </div> <div id="CTFLinksPanel"><span id="ExternalLinksPanel"><a id="HelpLink" title="Help" href="https://go.microsoft.com/?linkid=9722454" rel="noopener noreferrer" target="_blank"> </a> <a id="EmbedLink" title="Get this widget for your own site"></a> <a id="ShareLink" title="Share translated page with friends"></a> </span></div> <div id="FloaterProgressBar"><span id="ProgressFill"></span></div> </div> <div id="WidgetFloaterCollapsed" style="display:none;"><span>TRANSLATE with </span></div> <div id="FloaterSharePanel" style="display:none;"> <div id="ShareTextDiv"><span id="ShareTextSpan"> COPY THE URL BELOW </span></div> <div id="ShareTextboxDiv"><!--a id="TwitterLink" title="Share on Twitter"> <img id="TwitterImg" /></a> <a--> <a id="EmailLink" title="Email this translation"></a> </div> <div id="ShareFooter"><span id="ShareHelpSpan"><a id="ShareHelpLink"></a> </span> <span id="ShareBackSpan"><a id="ShareBack" title="Back To Translation"></a> Back</span></div> </div> <div id="FloaterEmbed" style="display:none;"> <div id="EmbedTextDiv"><span id="EmbedTextSpan">EMBED THE SNIPPET BELOW IN YOUR SITE</span> <a id="EmbedHelpLink" title="Copy this code and place it into your HTML."></a> </div> <div id="EmbedTextboxDiv"></div> <div id="EmbedNoticeDiv"><span id="EmbedNoticeSpan">Enable collaborative features and customize widget: <a href="http://www.bing.com/widget/translator" rel="noopener noreferrer" target="_blank">Bing Webmaster Portal</a></span></div> <div id="EmbedFooterDiv"><span id="EmbedBackSpan">Back</span></div> </div> </div><div style="clear:both;"></div>RE: Hide Bluetooth Broadcasthttps://devzone.nordicsemi.com/thread/409853?ContentTypeID=1Tue, 14 Feb 2023 12:38:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ee456908-0503-4790-84e3-487cd198abb2Joakim Jakobsen<p>Hi.&nbsp;</p> [quote user=""]We want to keep the Bluetooth connection private. Not everyone should see the link.[/quote] <p>Not sure if I understand what you mean by private?</p> <p>After the link has been established and you pair and bond with your device, you can encrypt the link to keep the data transmitted safe.&nbsp;</p> <p>______________</p> <p>As for the broadcast/advertisement of the device; This can not be &quot;hidden&quot;. You can, however, advertise using a whitelist.&nbsp;<span>It is still possible to see advertisements even when you are using a whitelist. Advertisements are not encrypted or &quot;invisible&quot; for unbonded devices, as they use the same protocol and the same channels as the devices that are not bonded/using whitelist. The difference is that you will not be able to connect to a device that claims to be using whitelist if you are not on that whitelist. The whitelist itself is not broadcasted, so the bonded device will have to know whether or not it already knows the advertising device or not.</span></p> <p><span></span></p> <p><span>Please let me know if I misunderstood your question.&nbsp;</span></p> <p><span>Br,&nbsp;<br />Joakim</span></p><div style="clear:both;"></div>