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<div class="moz-cite-prefix">On 11/4/23 12:00,
<a class="moz-txt-link-abbreviated" href="mailto:cryptography-request@metzdowd.com">cryptography-request@metzdowd.com</a> wrote:<span
style="white-space: pre-wrap">
</span><span style="white-space: pre-wrap">
</span></div>
<blockquote type="cite"
cite="mid:mailman.1.1699113601.14238.cryptography@metzdowd.com">
<pre class="moz-quote-pre" wrap=""><a class="moz-txt-link-freetext" href="https://www.bankinfosecurity.com/blogs/researcher-claims-to-crack-rsa-2048-quantum-computer-p-3536">https://www.bankinfosecurity.com/blogs/researcher-claims-to-crack-rsa-2048-quantum-computer-p-3536</a>
Of course quantum computer. I am not qualified enough to comment on
this article and its claims, though this group has many people who
are.
</pre>
</blockquote>
<p>Excerpted from another article about the claim:</p>
<hr width="100%" size="2">
<p>"
I asked Gerck if this was theoretical, or if they had cracked
RSA-2048 in a real-world setting, if they planned to demonstrate
this to any quantum computing experts who might vouch for their
findings, and when their peer-reviewed findings would be
published.
He responded, 'We broke a public RSA-2048. We cannot risk
impersonation.'" <br>
</p>
<p>Woodward, after reviewing the Gercks' research paper, said it
appears to be "all theory proving various conjectures - and those
proofs are definitely in question."
He added, "I'll believe they have done this when people can send
them RSA modulus to factor and they send back two primes. Until I
see that, I'm just confused and not convinced they've done what
they claim in the headlines."
</p>
<p>Anton Guzhevskiy, the chief operating officer at Australian
cybersecurity firm ThreatDefence, also challenged Gerck to prove
his claims. "I've shared an RSA-2048 public key and a
corresponding private key encrypted by this public key. If you can
decrypt the private key, you can sign some piece of text with it,
which will prove that you are in possession of the private key,"
he said in a response to Gerck's post on LinkedIn. "Can you do
it?"
"There is a publication delay, and I do not control that," Gerck
responded.</p>
<hr width="100%" size="2">
<p>It appears that the claim is without merit.</p>
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