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Mark C

@largecardinal.bsky.social

Logician (PhD), Quantum Hacker, ML miscreant. Feral academic. Co-founder of Quantum Village @ DEF CON

1,466 Followers  |  184 Following  |  162 Posts  |  Joined: 01.07.2023  |  2.2228

Latest posts by largecardinal.bsky.social on Bluesky

Dis-content creators

07.10.2025 06:45 β€” πŸ‘ 0    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Nobel committee unable to reach prize winner who is β€˜living his best life’ hiking off grid Fred Ramsdell was among those honoured with a 2025 Nobel Prize in Medicine but might not know because he is somewhere in Idaho and uncontactable

Goals...
www.theguardian.com/science/2025...

07.10.2025 06:35 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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CCC | Lectures, music, art, punk: Join us at the 39th Chaos Communication Congress! Der Chaos Computer Club ist eine galaktische Gemeinschaft von Lebewesen fΓΌr Informationsfreiheit und TechnikfolgenabschΓ€tzung.

Lectures, music, art, punk: Join us at the 39th Chaos Communication Congress and please submit! The deadline for all submissions for the stages is October 24. #39C3 will take place from December 27 to 30 www.ccc.de/en/updates/2...

27.09.2025 23:14 β€” πŸ‘ 35    πŸ” 17    πŸ’¬ 0    πŸ“Œ 0

The government bailing out JLR will send a strong signal to e-crime groups to retarget to the UK.

28.09.2025 10:02 β€” πŸ‘ 53    πŸ” 10    πŸ’¬ 5    πŸ“Œ 4

Tired: AI slop from LLMs
Wired: discontent creators

21.09.2025 21:09 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Extremely offended by a spider spinning its web across an abandoned project that I've been planning to work on any day now actually

01.09.2025 14:33 β€” πŸ‘ 139    πŸ” 11    πŸ’¬ 6    πŸ“Œ 1

Welcome!

01.09.2025 14:47 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Hi, I am here! Will mostly post about Quantum Foundations/Computing and Quantum Music.

01.09.2025 09:48 β€” πŸ‘ 48    πŸ” 10    πŸ’¬ 10    πŸ“Œ 0

A lot of people seem to live by the maxim; "it's not basic if I have complicated feelings about it..."

30.08.2025 12:25 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

my mom to my kid: have you ever actually dialed a phone?

my kid: yeah! I did it in a museum πŸ’€

29.08.2025 20:47 β€” πŸ‘ 832    πŸ” 46    πŸ’¬ 40    πŸ“Œ 11

When I was in undergrad our engineering building had old computers set up in a little museum/history section and they included the first Macintosh from 1984

29.08.2025 20:54 β€” πŸ‘ 22    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
Authenticated Transfer

datatracker.ietf.org/doc/bofreq-n... πŸ‘€πŸ‘€

29.08.2025 20:21 β€” πŸ‘ 119    πŸ” 27    πŸ’¬ 6    πŸ“Œ 9

We also made @wired.com ! www.wired.com/story/fully-...

29.08.2025 14:56 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Then to wrap up, @largecardinal.bsky.social and his jolly adventures being a diamond consumer that excites things with many legs in order to create a hackable quantum sensing platform based on diamond nitrogen-vacancy centres.

MIND f**ken blown. Badge lyfe isn’t about blinky lights anymore

10.08.2025 03:49 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1
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Call for Challenges The Quantum Capture the Flag (Q-CTF) - NOW AN OFFICIAL DEF CON CONTEST!! This year, Is the International Year of Quantum and our theme is Access All Atoms; from how to hack quantum networks to how β€˜t...

Whether your specialty is quantum computing, networking, sensing, cryptography, hardware hacking, reverse engineering, AI + quantum mashups, or just mind‑bending puzzles… we want your best! Please repost for reach!

Submit Here: forms.gle/9zfrQ1FMkDKG...

04.08.2025 11:51 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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πŸš€ Call for Challenges: Quantum Village Q-CTF @ DEF CON 33 βš›οΈ

Quantum Village is back at DEF CON 33 with our Quantum- Capture the Flag and we’re looking for Quantum Quizmasters! πŸ”—β€΅οΈ

#QuantumVillage #DEFCON33 #QCTF #HackTheQubit

04.08.2025 11:51 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

What happens when quantum tech meets 30,000 hackers in Vegas?
πŸŽ™οΈ On the latest Post-Quantum World, host Konstantinos Karagiannis previews DEF CON 33 and the fourth year of Quantum Village with guests Mark Carney & Victoria Kumaran.

#QuantumVillage #DEFCON33 #QuantumTech #PostQuantumWorld

24.07.2025 12:43 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

In nomine Patris,
et Filii,
et Spiritus Fuck-this...

16.07.2025 08:16 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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β€˜Give a positive review’: Hidden AI prompt found in academic paper by NUS researchers The AI prompt is visible only when highlighted in blue. Read more at straitstimes.com. Read more at straitstimes.com.

Amazing... Manipulating your paper so it lets a lazy reviewer get a positive review from an LLM!

www.straitstimes.com/singapore/ac...

10.07.2025 05:15 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

The hype machines doctor our perceptions and warp our moralities. You can be for progress without surrendering to whatever VCs find sexy between their drug hazes. Sorry to hear about all the shit :-/

19.06.2025 20:24 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Me and my bsky bubble

16.06.2025 16:56 β€” πŸ‘ 67    πŸ” 4    πŸ’¬ 7    πŸ“Œ 8

V10 OAuth & OIDC - Modern auth done right (thanks to all who pushed for this!)

V11 Cryptography - A complete rewrite that @largecardinal.bsky.social , Gabriel Corona (randomstuff) and the crypto crew absolutely nailed

30.05.2025 09:38 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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@largecardinal.bsky.social and I have been busy with CrytoMON on both the UX (which I've done) and on parsing on the backend and QUIC support (Mark's wizard-like hands).

We hope to get the UX ready for love soon, but until then, we have passkey support and thanks to Vite, a sexy UX

04.06.2025 08:52 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

for comparison this is what using CFG (a pretty ubiquitous inference steering method) does to the same setup

26.05.2025 17:44 β€” πŸ‘ 9    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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arxiv.org/abs/2505.15917

23.05.2025 08:26 β€” πŸ‘ 23    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0

link: arxiv.org/pdf/2505.15917

23.05.2025 08:45 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Factoring RSA 2048 bit keys in <1M qubits from Google... Providing there are no errors, this takes the required factoring estimate down to ~2^19 qubits. We were at 2^10 in Dec 2023, so assuming it doubles every year from now (we are a year behind), 2035 looks more and more reasonable.

23.05.2025 08:45 β€” πŸ‘ 10    πŸ” 2    πŸ’¬ 2    πŸ“Œ 0

Rumour mill says big quantum news may be afoot...

Commitment: cf8afc09a82c129969209e177b72bea679d9c857ecd2780a7eae24631eebe970

22.05.2025 15:31 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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πŸ› οΈβš›οΈπŸ’Ž Still Time to Get Involved with Quantum Village @ DEF CON 33 πŸ’Žβš›οΈπŸ› οΈ

QV returns to DEF CON this Aug 8-10 at the Las Vegas Convention Centre. Feat. The Quantum CTF w/ real QPU access, hands-on hardware, open source sensing, policy, and creative coding...

20.05.2025 08:03 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

PQC for KEX is essentially a done deal - "FIPS changed, keep up!".

13.05.2025 05:22 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

@largecardinal is following 20 prominent accounts