<div dir="ltr"><div> First of all, this development is a highly specific use-case, not a general purpose computer. Here's a better explanation <a href="https://arstechnica.com/science/2022/06/manipulating-photons-for-microseconds-tops-9000-years-on-a-supercomputer">https://arstechnica.com/science/2022/06/manipulating-photons-for-microseconds-tops-9000-years-on-a-supercomputer</a></div><div><br></div><div>Second, quantum computing is likely to break encryption that relies on prime factorization being hard, which underpins a lot of public key systems. But many symmetric encryption algos are unaffected. So it will be a challenge, but not the end of the world.</div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 2, 2022 at 10:04 AM Steve Isenberg <<a href="mailto:smisenberg@gmail.com">smisenberg@gmail.com</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 dir="ltr"><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small;color:rgb(11,83,148)">So this means that the security we've been feeling using complex passwords may end soon.</div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small;color:rgb(11,83,148)"><br></div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small;color:rgb(11,83,148)">According to the article, quantum computers solve a 9,000 year problem in 36 microseconds. Amazing.</div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small;color:rgb(11,83,148)">So it could conceivably solve a 9,000,000 year problem in 36 milliseconds (36,000 microseconds) or a 250,000,000 year problem in a second.</div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small;color:rgb(11,83,148)"><br></div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small;color:rgb(11,83,148)">From (<a href="https://vpnalert.com/resources/how-long-does-it-take-to-crack-a-password/" target="_blank">https://vpnalert.com/resources/how-long-does-it-take-to-crack-a-password/</a>) it would take up to 46,000,000 years to crack a 15 character password using numbers, upper and lower case letters using a conventional computer; with a quantum computer this would be about 1/5 second.</div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small;color:rgb(11,83,148)"><br></div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small;color:rgb(11,83,148)">From (<a href="https://www.komando.com/security-privacy/check-your-password-strength/783192/" target="_blank">https://www.komando.com/security-privacy/check-your-password-strength/783192/</a>) if you use a 18 character password with numbers, upper & lower case letters, and symbols it would take a conventional computer up to 7,000,000,000,000 (7qd) years; a quantum computer would take up to 28,000 seconds, under 8 hours.</div><br><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small;color:rgb(11,83,148)">Regards,</div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small;color:rgb(11,83,148)">-steve<br></div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small;color:rgb(11,83,148)"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 2, 2022 at 9:08 AM <<a href="mailto:palbin24@yahoo.com" target="_blank">palbin24@yahoo.com</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 dir="auto"><div>Interesting overview of the current state of quantum computing </div><div><br></div><a href="https://www.theregister.com/2022/06/02/quantum_advantage_canada/" target="_blank">https://www.theregister.com/2022/06/02/quantum_advantage_canada/</a><br><br><div dir="ltr">Peter</div></div>===============================================<br>
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