Marcel Keller @mkskeller.bsky.social · 1hAustralian and Chinese cryptographers are the only demographics that rejected the proposal while Belgian ones supported it unanimously. 001
Reposted by Marcel Kellerdaniel:// stenberg:// @bagder.mastodon.social.ap.brid.gy · 08/10/2026"The people holding up the internet" A good-looking but somewhat depressing exposé about the people holding up current digital infrastructure as a hobby. sheets.works/data-viz/holding-up-th…sheets.worksThe people holding up the internetFour billion phones ask one text file what time it is. One lecturer keeps it in his spare time. We counted the rest. 250169
Reposted by Marcel KellerLouis Barclay @louisbarclay.bsky.social · 29/09/2026The latest urgent research from the Center for the Alignment of AI Alignment Centers: alignmentalignment.ai/caaac/blog/p...alignmentalignment.aiPrediction: AI will kill every human by next year, or notOur latest prediction model uses cutting-edge binary methodology to forecast potential AI futures 0115
Reposted by Marcel KellerClément Canonne @ccanonne.github.io · 29/09/2026The report from the AI + TCS Working Group held at the @simonsinstitute.bsky.social is out, including "twelve concrete near-term recommended actions." Currently reading it: while I have some reservations, but there is some good in it! Notably items 7, 8, and 11. simons.berkeley.edu/ai-tcs-worki... 43112
Reposted by Marcel KellerMiro Haller @mirohaller.bsky.social · 21/09/2026We finally finished the universal signature forgery for 1024-bit RSA! 2^32 oracle queries, 1200 core years precomputation, 180 core years for an individual forgery, and 3 years of human labor (no AI involved) by Laura, Adam, Nadia, Emmanuel and me to pull of this computation against real HSMs. 14019
Reposted by Marcel KellerJoseph Cox @josephcox.bsky.social · 14/09/2026New from 404 Media: humans are reading ChatGPT conversations. OpenAI has hired an army of contractors who read real ChatGPT users' chats. I've seen internal docs, the review system, and real user prompts. Sometimes they contain very personal and sensitive information www.404media.co/inside-proje...404media.coInside ‘Project Lily’: The Humans Reading Your ChatGPT ChatsHumans are reading ChatGPT users’ prompts to improve OpenAI’s models, and those chats can include sensitive, personal information, according to leaked internal documents and real prompts seen by 404 M... 561995986
Reposted by Marcel KellerEd Zitron @edzitron.com · 13/09/2026I resigned from JibJab over what I believe are dangerous intelligences creating deepfakes 20127894
Reposted by Marcel KellerKenny Paterson @kennyog.bsky.social · 10/09/2026Our latest “Crypto in the Wild” project, analysing secure email gateways. We give 29 cryptographic attacks on 4 different products, from SEPPmail, Cisco, Proton and CipherMail. Paper to appear at ACM CCS 2026. 11911
Reposted by Marcel KellerAlex Hanna @alexhanna.bsky.social · 09/09/2026'Megan recalled asking Austin what he was doing on his phone. She said he replied, “Talking to the AI.” When she pressed — asking “About what?” — he said, “Trauma.”' This is a heartbreaking read. 24214
Reposted by Marcel KellerClément Canonne @ccanonne.github.io · 09/09/2026For context, to ground the conversation and explain one of the issues. USD20M, which is a self-reported (likely low-balled) estimate of what OpenAI burned in *one week* in their scooping race, would fund 100 full-time postdoctoral positions for 2 years (including overhead). 100 postdocs. 2 years. 24612
Reposted by Marcel KellerClaudio Orlandi @claudiorlandi.bsky.social · 07/09/2026Registration for the PPML workshop in Aarhus November 2-4 is now open. The deadline for talk submissions is also this week (September 10). Feel free to reshare! p1dpml.github.io/workshops/wo...p1dpml.github.ioWorkshop 2 | Data Privacy in Machine Learning 042
Reposted by Marcel KellerHolger Hestermeyer @hhesterm.bsky.social · 20/08/2026This incident needs to be thoroughly investigated. If true, no public office in the EU or any member state can continue to run any microsoft products. nltimes.nl/2026/05/22/m...nltimes.nlMicrosoft accused of leaking Dutch civil servants' names to U.S. governmentMicrosoft has reportedly shared the names of Dutch civil servants working for two regulatory agencies with the U.S. House of Representatives. The agencies involved include the Authority for Consumers ... 28783427
Reposted by Marcel KellerTianxin Tang @koptxin.bsky.social · 20/08/2026dontpastetheai.com (currently struggling with this a lot with masters students...)dontpastetheai.comDon't paste the AI.If someone asks you a question, paste your answer — not the chatbot's. 011
Reposted by Marcel KellerMartin R. Albrecht @malb.bsky.social · 17/08/2026As funny as it is that they simply dropped frida.re on Encrochat devices, to me the two big Encrochat questions that still aren't resolved are:frida.reFrida • A world-class dynamic instrumentation toolkitObserve and reprogram running programs on Windows, macOS, GNU/Linux, iOS, watchOS, tvOS, Android, FreeBSD, and QNX 144
Reposted by Marcel KellerMichael A. Specter 👻 @mikespecter.com · 17/08/2026We also bought EncroChat's original domain (encrochat.ch) --- it now hosts our paper and other info.encrochat.chA Real-World Law-Enforcement Hack: The Case of Encrochat 0107
Reposted by Marcel KellerKenny Paterson @kennyog.bsky.social · 15/08/2026Signal is the gold standard for secure messengers. We broke Signal’s integrity (twice) in this paper via message injection attacks. @kientuong114.bsky.social presented this week at #USENIX and he and Noemi will present it again at #WAC (Crypto workshop) this weekend. Catch their talk if you can! 02911
Reposted by Marcel KellerElectronic Frontier Foundation @eff.org · 11/08/2026Two SF gay bars have dropped PatronScan after hearing customers’ privacy concerns. That’s a good start. Others should follow their lead. www.eff.org/deeplinks/2...eff.orgWhy Are Gay Bars Building Databases of Their Patrons?Recent reports have raised alarm about the use of PatronScan, an ID-checking and face-scanning system, at multiple LGBTQ+ bars in San Francisco’s Castro neighborhood. For venues serving vulnerable 513642
Reposted by Marcel KellerClément Canonne @ccanonne.github.io · 10/08/2026So many good points in this post by @nsaphra.bsky.social: only quoting a couple, to encourage you to read the others. "My colleagues and students adopt the writing quirks they read throughout the day, and their own writing becomes more like an LLM’s." nsaphra.net/post/uncanny/ 1378
Marcel Keller @mkskeller.bsky.social · 07/08/2026Only through the title of this paper did I learn that there's a cryptographic technique that sounds like using a popular dating app. The community will be delighted. 030
Marcel Keller @mkskeller.bsky.social · 23/07/2026Still less of a detour than when my direct flight LA to Sydney ended up being a connection in Hong Kong. 000
Marcel Keller @mkskeller.bsky.social · 23/07/2026Lucky you. I once booked a connection through Bangkok and ended up in Dubai anyway. 100
Reposted by Marcel KellerClément Canonne @ccanonne.github.io · 17/07/2026Well. That is quite the headline from Le Monde Diplomatique. 281
Reposted by Marcel KellerClément Canonne @ccanonne.github.io · 17/07/2026Take some time (very little) to weigh on this: "Now Is the Time to Give LLMs Access to the ACM Digital Library" docs.google.com/forms/d/e/1F... (not that I want to influence anyone, but my own position is along the lines of "hell no.")docs.google.comNow is the Time to Give LLMS Access to the ACM Digital Library Why ACM Believes the benefits outweigh the risks in opening up the ACM Digital Library to large lan...ACM welcomes your feedback! All responses will be read and considered by ACM. 3112
Reposted by Marcel Kellermccurley.bsky.social @mccurley.bsky.social · 09/07/2026The IACR board has put forward a proposal to revamp the publishing of the general conference proceedings for Eurocrypt, Crypto, and Asiacrypt. iacr.org/hybridpropos... I would encourage members to engage in discussion about this on iacr.org/discussiacr.orgConcrete Hybrid Journal Proposal 01911
Marcel Keller @mkskeller.bsky.social · 06/07/2026The documentation now includes a section on security fixes. mp-spdz.readthedocs.io/en/latest/se...mp-spdz.readthedocs.ioSecurity Fixes — MP-SPDZ documentation 021
Marcel Keller @mkskeller.bsky.social · 06/07/2026The latest version of MP-SPDZ is a maintenance release, with the most important change being two severe protocol bug fixes. github.com/data61/MP-SP...github.comRelease Maintenance · data61/MP-SPDZFixed security bug: malicious parties not committed to MAC key across threads and executions Fixed security bug: insufficient checks in Rep4 Improved radix sort Optimized 32-bit computation Multith... 110
Reposted by Marcel KellerSchool of Computer Science, University of Sydney @sydneycompsci.bsky.social · 01/07/2026🚨📣 Qiang Tang and @aravind16coiner.bsky.social are organising a one-day cryptography school on August 7, 2026. Open to UG, master's, and PhD students. Free attendance, but registration required! sydney-cryptography-group.github.io/activities-e... 013
Reposted by Marcel Kellerthe beggars out of here getter @milesklee.bsky.social · 16/06/2026Tim Ferriss, author of the 4-Hour Work Week and other self-help slop, is seeing his book sales crater because people are getting their advice from ChatGPT instead lmao 3665986
Reposted by Marcel KellerGernot Heiser @microkerneldude.bsky.social · 10/06/2026UNSW Sydney is #hiring systems faculty – talk to me if you’re interested. This is for mid-career researchers in the AU Lecturer–Senior Lecturer–Associate Professor–Professor progression. Tenure is orthogonal to position level – closes 31 July. external-careers.jobs.unsw.edu.au/cw/en/job/54...external-careers.jobs.unsw.edu.auAssociate Professor in SystemsJoin an organisation that is shaping the future direction of modern computing systems in Australia, in a senior academic role that combines research leadership, strategic contribution, and excellence ... 022
Marcel Keller @mkskeller.bsky.social · 05/06/2026Lecturer position here: external-careers.jobs.unsw.edu.au/cw/en/job/54...external-careers.jobs.unsw.edu.auLecturer/Senior Lecturer in CryptographyJoin an organisation that is shaping the future direction of cryptography and secure computation in Australia, in an academic role that combines high-quality research, excellent teaching, and meaningf... 010
Marcel Keller @mkskeller.bsky.social · 05/06/2026UNSW Sydney is hiring an associate professor and a lecturer in cryptography, and the description explicitly mentions *secure computation*. Didn't you want to live in the sunniest of the most livable cities in the world?external-careers.jobs.unsw.edu.auAssociate Professor in CryptographyJoin an organisation that is shaping the future direction of cryptography and secure computation in Australia, in a senior academic role that combines research leadership, strategic contribution, and ... 166
Reposted by Marcel KellerSteven Murdoch @steven.murdoch.is · 02/06/2026For 19 years, GPS satellites have secretly broadcast a “numbers station” in their signals. We decoded 12M messages: a 2011 flash where 31 satellites flipped in hours, “ghost” substrings repeating years apart, and a “TEXT” prefix spreading now. lsc-pagepro.mydigitalpublication.com/publication/...lsc-pagepro.mydigitalpublication.comInside GNSS Media & Research • May/June 2026 • 62 621985
Reposted by Marcel KellerPeter Vamplew @amp1874.bsky.social · 03/06/2026A new policy from IEEE Transactions on Wireless Communications "An author may submit at most 36 new manuscripts to the IEEE TWC each year. Submissions exceeding this limit will be rejected without review. " 36!!! Somehow I don't think I'm likely to have a problem with this. 211
Reposted by Marcel KellerFernando @fernand0.bsky.social · 02/06/202660% of MD5 password hashes are crackable in under an hourtheregister.com60% of MD5 password hashes are crackable in under an hour 0168
Reposted by Marcel KellerMathy Vanhoef @vanhoefm.bsky.social · 19/05/2026Nominate yourself to help review papers for USENIX Security 2027! sec-rms.com/submit-appli... (or rms.swag.cispa.de/submit-appli... ). Deadline: May 28, 2026. We're looking for both senior and junior people. See Andrei Sabelfeld's LinkedIn post for more info: www.linkedin.com/feed/update/...sec-rms.comSignal PC interest - USENIX Security Symposium 025
Reposted by Marcel KellerYIMBY Melbourne @yimby.melbourne · 20/05/2026Grattan Institute’s new report shows that letting Australian homebuyers choose the car-parking they need will: → make housing cheaper, → get more homes built faster, and → create more walkable cities. 1167
Reposted by Marcel KellerSofia Celi @claucece.bsky.social · 14/05/2026Go MAYO!! Moving to the third round of the PQC NIST process! 0115
Reposted by Marcel KellerAndrea Basso @andreavbasso.bsky.social · 14/05/2026Round 3 of the NIST additional signatures process announced! 🎉 And SQIsign is part of it!! ⛷️⛷️ 02613
Reposted by Marcel Kellermichael veale @michae.lv · 28/04/2026south africa withdraws own government AI policy over hallucinated citations www.reuters.com/world/africa... 13023
Reposted by Marcel KellerFredrik Dahlgren @fegge.bsky.social · 17/04/2026Two weeks ago, Google published a paper proving in zero-knowledge that they had an efficient implementation of Shor's algorithm. Today, Trail of Bits can prove that we have an even better implementation which beats Google's on all metrics! 🫢 blog.trailofbits.com/2026/04/17/w... 18230
Reposted by Marcel KellerJoseph Cox @josephcox.bsky.social · 16/04/2026This is a great (and horrifying?) piece about how Sam, in preparation for her marriage, was pulled into the bridal algorithm. Her experience of social media changed completely overnight www.404media.co/wedding-plan...404media.coI Almost Lost My Mind in the Bridal AlgorithmAs a #2026Bride, the constant, aggressive content started to make me feel like I was losing sight of what mattered. And I'm far from alone. 07617
Reposted by Marcel KellerSophie Schmieg @sophieschmieg.infosec.exchange.ap.brid.gy · 02/04/2026A very nice explainer why "if you're so worried about quantum computers, why haven't they factored 21 yet?" isn't a very convincing argument. Look at the labels of the graph, and how extremely close the various lines are for factoring 21 and 2048 bit numbers. Polynomial scaling remains […]infosec.exchangeOriginal post on infosec.exchange 02417
Marcel Keller @mkskeller.bsky.social · 24/03/2026So Atlanta is to Sydney what Mexico City is to San Diego? 000
Reposted by Marcel KellerCOSIC @cosic.bsky.social · 11/03/2026🎉 Proud moment for COSIC! Prof. Nigel Smart has received the #RSAC 2026 Award for Excellence in the Field of Mathematics for his groundbreaking work in #MPC, Threshold #Cryptography & foundational crypto research. Congratulations, Nigel! 👏 www.rsaconference.com/library/pres...rsaconference.comRSAC Set to Honor Excellence in the Field of Mathematics Awards, Inaugural Test of Time Awards at RSAC 2026 Conference 032
Reposted by Marcel KellerKenny Paterson @kennyog.bsky.social · 17/02/2026A very nice blogpost explaining our work - slices right through the marketing from the vendors: medium.com/reading-sh/y...medium.comYour password manager’s ‘zero knowledge’ promise is brokenWhat ETH Zurich’s USENIX Security paper means for anyone who stores passwords in the cloud. 021