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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I’m guessing the answer is mobile VPN and ‘end-to-end’ encryption.
<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></a></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> sofdev-bounces@edulists.com.au [mailto:sofdev-bounces@edulists.com.au]
<b>On Behalf Of </b>Mark<br>
<b>Sent:</b> Wednesday, 16 November 2016 2:37 PM<br>
<b>To:</b> Year 12 Software Development Teachers' Mailing List <sofdev@edulists.com.au><br>
<b>Subject:</b> [Year 12 SofDev] SD exam - C8 security protocols<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi, greyhats and greybeards. I need help.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">C8 is asking about protocols for the mobile devices with the app to
<b>send this information as securely as possible</b>. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I'm no mobile phone technology whizkid, so I hope someone can clarify things for me.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">The case study makes no reference to <b>how</b> the phones send data from the app to the SBH system.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">The phone would be using 3G or 4G technology - does the app designer have any control over 3G/4G communication security?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Is C8 assuming the app's data will go over 3G/4G using HTTP with SSL or TLS encryption? (This is what I assume the Q is fishing for.)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Or could the data go from the phone over 3G/4G using a different protocol entirely, such as text messaging (does
<b>that</b> use HTTP?) or something I've never even heard of (which is very, very likely).<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">What security protocols do phone companies use to get data from mobile towers to their destinations?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Surely not <b>all</b> data sent by <b>all apps </b>over mobile phone connections uses HTTP/HTTPs. Or is it?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">When you get an Angry Birds high score on your phone, is that data sent to Rovio over HTTP? Is it sent to your phone company using
<b>one</b> protocol, then to Rovio with a <b>different</b> protocol? <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Apart from SSL/TLS (or pre-encryption of entire data files using an RSA variant), what protocol can a phone app use to send information as securely as possible?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I have no idea.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks in advance if you have a clue. I'd be keen to learn about this newfangled technobother.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I just hope the kids in the exam were not expected to be mobile telecommunications engineering experts.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I shall do research in the interim. My ignorance of this field is becoming increasing obvious to us all.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Mark<br clear="all">
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">Mark Kelly</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><a href="mailto:mark@vceit.com" target="_blank"><span style="font-size:9.5pt">mark@vceit.com</span></a><o:p></o:p></p>
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<p class="MsoNormal"><a href="http://vceit.com" target="_blank">http://vceit.com</a><o:p></o:p></p>
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