Marcel Keller
Cryptographer who likes to implement multi-party computation and works for CSIRO's Data61. Views my own. 🏳️🌈🇨🇭🇦🇺 (he/him)
- Reposted by Marcel KellerThe robot apocalypse hasn't happened yet, but still I can't escape the feeling that something has gone horribly wrong... Cartoon for Dutch newspaper @trouw.nl. More of my work for Trouw: www.trouw.nl/cartoons/tje... #ArtificialIntelligence #creativity #work #GenerativeAI
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- Reposted by Marcel KellerThe number of people arguing, following the #NeurIPS2025 case, that a bit of systematically bad scholarship and borderline academic misconduct is OK because doing things the right way is tedious and time-consuming is concerning. Yes, doing things well might be boring. But doing them badly is... bad
- Reposted by Marcel KellerAdvice for Jens Eisert. doi.org/10.1038/d415...
- Reposted by Marcel KellerConsider signing this petition regarding restoring free access to the ACM digital library: www.ipetitions.com/petition/res...
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- Privacy issues are unlikely to go away in 2026. www.theguardian.com/world/2025/d...
- The latest version of MP-SPDZ can predict the communication cost when compiling high-level code. github.com/data61/MP-SP...
- Reposted by Marcel KellerFully robust MPC protocol over Galois Rings, executing a TFHE DKG protocol amongst 13 parties, taking 55 hours, with 10.5 Terabytes of data sent per party.... www.zama.org/post/decentr...
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- Reposted by Marcel KellerCryptography shows that AI filters will never work.... www.quantamagazine.org/cryptographe... Nice application of crypto to AI, and shows that AI has inherent limitations.
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- "Maybe the name EasyCrypt isn't quite deserved." - @cryptojedi.bsky.social at his Asiacrypt keynote
- Reposted by Marcel KellerInterested in the security of MPC implementations? Peter Scholl (@schollster.bsky.social) and I are looking for research interns to study the theory/practice gap for MPC. We can host multiple interns in Aarhus for the summer 2026. More information: mpcinthewild.github.io Help us spread the word!
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- One of the motivations for MP-SPDZ was not getting bogged down by this kind of arguments when they are just hypothetical. Every use case has its own trade-offs as the IACR just found out.
- Reposted by Marcel KellerJust saw an extended version
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- Reposted by Marcel KellerNEW: The US Department of Justice issued a warrant demanding SpaceX seize and disable Starlink devices and accounts being used at a scam compound in Myanmar. At least 9 Starlink devices were linked to a crypto scam that stole $6 million people, an FBI affidavit says Story with @lhn.bsky.social
- Reposted by Marcel KellerA staggering statistic: "North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year." What are we doing?
- Thanks to Hidde Lycklama, MP-SPDZ now supports BERT inference. github.com/data61/MP-SP...
- Reposted by Marcel KellerGetting nervous for the talk I'm about to give at a workshop about "using AI to drive impact" which features slides such as these.
- Remarkable, but important to notice that the change only applies to review/survey and position papers
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- Reposted by Marcel KellerThis is amazing research by Nadia Heninger and her co-authors Wenyi Morty Zhang, Annie Dai, Keegan Ryan, Dave Levin and Aaron Schulman. TL;DR a huge number of satellite links over our heads are totally unencrypted. satcom.sysnet.ucsd.edu
- Reposted by Marcel Keller📢 Come be my colleague: the School of Computer Science at 🇦🇺 #USyd is hiring! Multiple tenure-track-equivalent positions across the board (including theory!), but with a specific focus on Cybersecurity and Trustworthy Digital Systems, and ML/AI. ⏰ Dec 1 usyd.wd105.myworkdayjobs.com/en-GB/USYD_E...
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- New campus, who dis?
- Reposted by Marcel KellerAcademic authors, here's a peek into the black box of journal publishing from an journal editor if you can bear it:
- Your favourite remote castle just started skeeting. bsky.app/profile/dags...
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- USENIX chair report: "six individuals appear as co-authors on 20 or more submissions, with two authors appearing on 36 and 39 submissions respectively. At such volume, it becomes difficult not to question the nature and depth of the contributions" www.usenix.org/sites/defaul...
- Reposted by Marcel KellerIn a new digital twist to environmental individualisation of responsibility, the UK government is now advising people to “[d]elete old emails and pictures” in data centres to help with the current drought. www.gov.uk/government/n...
- Reposted by Marcel KellerSpringer publishes a P ≠ NP "proof" and Eric Allender has words to say. blog.computationalco...
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- More MP-SPDZ users, Dagstuhl edition
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- German SQL found in the first LNCS volume in the Dagstuhl library
- German SQL found in the first LNCS volume in the Dagstuhl library
- Reposted by Marcel KellerReplication Crisis xkcd.com/3117/
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- Researchers at the Chinese Academy of Sciences implemented OT on FPGAs and made MASCOT up to 600 times faster: ojs.ub.rub.de/index.php/TC...
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- Reposted by Marcel KellerGood Science xkcd.com/3101/
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- Powered by MP-SPDZ
- Reposted by Marcel KellerWe are reviewing the current state of scientific publishing, and we want to hear from researchers on their perceptions of publishing in the current context and how it might develop in future. Complete our short survey now:
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- The latest version of MP-SPDZ adds two protocols with function-dependent protocols. Also in the bag is functionality that helps finding papers and code locations relevant to the computation at hand. github.com/data61/MP-SP...
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- My latest paper investigates the relationship between semi-honest 3PC with replicated secret sharing and similar schemes with function-dependent preprocessing, and I conclude that the additional cost is unlikely to justify the benefits of the latter.
- Reposted by Marcel KellerA new use of the asterisk in the paper author list for credit assignment
