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This might be my favourite slide on quantum computing, ever. From Peter Gutmann at #AUSCERT
Re-examining the Physics Experiment (ctd) When you see the latest announcement of a quantum breakthrough • Don't say: "We're all going to die Do say: "Where did they cheat this time?" (Easiest to wait a week or two
#auscert
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Schamschula
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Schamschula
• •
When I was a post doc, part of my job was to point out when my boss (also my former advisor) was violating the second law of thermodynamics. We are now in the same boat with quantum computing. Unfortunately, things are a lot more subtle in the quantum realm.
in reply to Lesley Carhart

bit
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bit
• •
AGI will figure it out, although it might also benefit from the same analysis strategy.
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Douglas Moore
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Douglas Moore
• •
oh yeah! That one was good! I think the version I saw is up on the Kawaiicon NZ YouTube channel
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✶Rayotron✶
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✶Rayotron✶
• •
Yes, be wary of that. Cold Fusion, though, is right around the corner.
This entry was edited (2 days ago)
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itgrrl
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itgrrl
• •

his talks are always great! I remember vividly the moment in a talk he gave at BSidesCBR 2018 when he talked about the primary purpose of a fuse…

"Cyberwar before there was Cyber: Hacking WWII Electronic Bomb Fuses" - Peter Gutmann

youtu.be/W9bbnhZKI3A?t=166

one of those “it’s obvious in hindsight but in the moment it’s…” 👇

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RedstoneLP2
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RedstoneLP2
• •
wasn't there a paper on iirc a c64, and a dog being faster at some "quantum algorithm" than a quantum computer?
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Stephan Neuhaus
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Stephan Neuhaus
• •
Shameless plug alert: see also eprint.iacr.org/2025/1237, by Peter and yours truly.

Replication of Quantum Factorisation Records with an 8-bit Home Computer, an Abacus, and a Dog

This paper presents implementations that match and, where possible, exceed current quantum factorisation records using a VIC-20 8-bit home computer from 1981, an abacus, and a dog.
IACR Cryptology ePrint Archive
This entry was edited (2 days ago)

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in reply to Stephan Neuhaus

Lesley Carhart
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Lesley Carhart
• •
@sten my third law is that everyone actually competent at Complicated Things tells everyone it’s complicated, and go have a beer
@Stephan Neuhaus
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Anthony David
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Anthony David
• •

@sten

I knew Peter from the sci.math.crypt newsgroup moons ago. This paper is a hoot.

@Stephan Neuhaus
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Tommaso Gagliardoni
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Tommaso Gagliardoni
• •

and folks in this thread: At the risk of feeding myself to the lions, may I suggest care? Gutmann's views on QC are funny to watch, but prone to misinterpretation (although I have to say, this slide in particular is... refreshingly sober?)

gagliardoni.net/#20250714_ludd…

#security #cryptography #crypto #qc #quantum #quantumcomputing #drama

Tommaso Gagliardoni's Homepage

gagliardoni.net
#security #crypto #quantum #quantumcomputing #drama #cryptography #qc
in reply to Lesley Carhart

InfoSecBen
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InfoSecBen
• •
That’s a fair approach, though if your threat model includes national adversaries who plan to capture now and decrypt later, moving to post-quantum cryptography now makes sense.
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