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Oh, ok. That will work. Presumably the serial number (with random
digits) is also printed somewhere on the product too, so it won't
get lost.<br>
<br>
Greg<br>
<br>
<br>
<div class="moz-cite-prefix">Mark Webb-Johnson wrote:<br>
</div>
<blockquote type="cite"
cite="mid:334269A4-7626-4AA1-8A2B-F170699987CA@webb-johnson.net">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
Plan is as follows:
<div class=""><br class="">
</div>
<blockquote style="margin: 0 0 0 40px; border: none; padding:
0px;" class="">
<div class="">
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">Serial numbers are of
the form:</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""><br class="">
</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">YYYYBBNNNNN</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""><br class="">
</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">* YYYY is four digit
year. For example; 2018</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">* BB is two digit
batch. For example; 00, 01, 02, etc</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">* NNNN is four digit
sequence. For example; 0001, 0002, etc</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""><br class="">
</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">First production batch
is 2018010001 - 2018010120.</span></font></div>
</div>
</blockquote>
<div class=""><br class="">
</div>
<div class="">
<div class="">That would be 10 digits. Not the most secure, and
pretty predictable, but better than a simple “OVMS”.</div>
</div>
<div class=""><br class="">
</div>
<div class="">I’m asking if the software they have can generate
random characters. If it can, then will add four random letters
onto the end.</div>
<div class=""><br class="">
</div>
<div class="">Regards, Mark.</div>
<div class=""><br class="">
<div>
<blockquote type="cite" class="">
<div class="">On 4 Mar 2018, at 11:23 AM, Greg D. <<a
href="mailto:gregd2350@gmail.com" class=""
moz-do-not-send="true">gregd2350@gmail.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8" class="">
<div text="#000000" bgcolor="#FFFFFF" class=""> Hi Mark,<br
class="">
<br class="">
WPA2 PSK passphrases for WiFi need to be at least 8
characters. Do the serial numbers have leading zeros?<br
class="">
<br class="">
Greg<br class="">
<br class="">
<br class="">
<div class="moz-cite-prefix">Mark Webb-Johnson wrote:<br
class="">
</div>
<blockquote type="cite"
cite="mid:9CBD2939-6C54-4BEB-B4B7-C41B857E9DD0@webb-johnson.net"
class="">
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8" class="">
<div class=""><br class="">
</div>
They’ll do pretty much whatever we ask them to do.
<div class=""><br class="">
</div>
<div class="">To try to formalise this, so everyone
can see, I’ve created a
production/qc/production_notes.txt file with the
production notes that will be given to the China
side. This should document all the production and QC
steps they should do.</div>
<div class=""><br class="">
</div>
<div class="">What I have at the moment is:</div>
<div class=""><br class="">
</div>
<blockquote style="margin: 0 0 0 40px; border: none;
padding: 0px;" class="">
<div class="">
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">********************************************************************************</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">** TOOLS</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">********************************************************************************</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""><br
class="">
</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">1] DB9 CAN
Bus QC tool</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""><br
class="">
</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""> DB9
Female with:</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""> * Pins
2, 4, and 6 connected (all CAN-L signals)</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""> * Pins
5, 7, and 8 connected (all CAN-H signals)</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""> * R120
between pins 2 and 5</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""> *
External 12V power connector</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""> *
GND on pin 3</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""> *
+12V on pin 9</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""><br
class="">
</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">********************************************************************************</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">**
PRODUCTION STEPS</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">********************************************************************************</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""><br
class="">
</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">1] Default
wifi AP and module passwords</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""><br
class="">
</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">
OVMS> config set wifi.ap OVMS
<serialnumber></span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class="">
OVMS> config set password module
<serialnumber></span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""><br
class="">
</span></font></div>
<div class=""><font class="" face="Andale Mono"><span
style="font-size: 14px;" class=""> Where
<serialnumber> is the serial number
from the label on the enclosure.</span></font></div>
</div>
</blockquote>
<div class=""><br class="">
</div>
<div class="">I think that should set both the module
default and auto wifi AP passwords to the serial
number of the module. That will be on a label on the
underside of the module.</div>
<div class=""><br class="">
</div>
<div class="">You are correct: this is a connected
car, with possibly disastrous consequences should
somebody malicious gain access. Best to err on the
side of caution.</div>
<div class=""><br class="">
</div>
<div class="">Regards, Mark.</div>
<div class=""><br class="">
<div class="">
<blockquote type="cite" class="">
<div class="">On 3 Mar 2018, at 4:07 AM, Michael
Balzer <<a href="mailto:dexter@expeedo.de"
class="" moz-do-not-send="true">dexter@expeedo.de</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<meta http-equiv="Content-Type"
content="text/html; charset=UTF-8" class="">
<div text="#000000" bgcolor="#FFFFFF" class="">
Mark,<br class="">
<br class="">
<div class="moz-cite-prefix">Am 26.02.2018
um 07:28 schrieb Mark Webb-Johnson:<br
class="">
</div>
<blockquote type="cite"
cite="mid:B7AB3971-3FB1-4717-98FF-388A790206E7@webb-johnson.net"
class="">
<div class=""><br class="">
</div>
I’ve asked the China side. Specifically:
<div class=""><br class="">
</div>
<div class="">
<ol class="MailOutline">
<li class="">Can you print serial
number stickers for these modules? I
can provide design - and we can
print a large batch.</li>
<li class="">Then, during
manufacturing, have one step to
enter serial number as password into
module, like:</li>
<ol class="">
<li class="">Flash</li>
<li class="">Connect terminal</li>
<li class="">QC checks</li>
<li class="">New step to
type: config set wifi.ap OVMS
<serialnumber></li>
</ol>
</ol>
</div>
</blockquote>
<br class="">
Just to double check: so we won't set the
module password, only the AP pass phrase?<br
class="">
<br class="">
Has setting the module password any
drawbacks?<br class="">
<br class="">
I'm asking because I assume the SMS channel
-as soon as implemented- will also provide
command access, which would be open by
default as well without a module password.<br
class="">
<br class="">
Setting the module password would secure the
webserver as well.<br class="">
<br class="">
Regards,<br class="">
Michael<br class="">
<br class="">
<pre class="moz-signature" cols="160">--
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
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