<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family:arial,sans-serif">On Sat, Jun 10, 2017 at 1:19 PM, Adrian Tymes </span><span dir="ltr" style="font-family:arial,sans-serif"><<a href="mailto:atymes@gmail.com" target="_blank">atymes@gmail.com</a>></span><span style="font-family:arial,sans-serif"> wrote:</span><br></div><div class="gmail_extra"><div class="gmail_quote"><font size="4"><br></font><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><font size="4"><span class="">
><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​>​</div> Why couldn't I use public key encryption? I digitally sign my completed<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​ ​</div></span><span class="">ballot with my secret key, the one I generated when I first registered to<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​ ​</div></span><span class="">vote, as proof that the ballot could only have come from me. Then I encrypt<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​ ​</div></span><span class="">the message with the election office's public key ( and if I were a belt and<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​ ​</div></span><span class="">suspenders sort of mood I could encrypt it a second time with my secret key)<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​ ​</div></span><span class="">and then Email the entire thing to the election office, who after<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​ ​</div>decoding<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​ ​</div></span><span class="">it with their secret key (and perhaps with my public key if I encrypted it a<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​ ​</div></span><span class="">second time) could then could publicly say "John Clark voted on this date<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​​</div></span><span class=""> and the following is is a record of how he voted that we encrypted with John<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​ ​</div></span><span class="">Clark's public key so that can only be decrypted by his secret key that is<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​ ​</div></span><span class="">available only to him so he can make sure everything is OK ."  I could then<br></span><span class="">double check that there was no funny business going on.</span></font></blockquote><span class="">
<br>
</span><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​> ​</div>With your ballot, perhaps, but you'd have no way to verify the total.<br>
"You voted for X.  We claim only 20 people voted for X, and the other<br>
80 voted for Y."<br></blockquote><div><br></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​<font size="4">The idea isn't to find the perfect voting system, you're never going to have that, it's just to find one that is more secure,  easier to use, and cheaper to implement than anything we have now.​</font></div><font size="4"> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">​</div></font></div><div><font size="4"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"><br></div></font></div><div><font size="4"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> John K Clark</div></font></div><div><font size="4"><br></font></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="HOEnZb"><div class="h5"><br></div></div></blockquote></div></div></div>