Dan Bogdanov
@danbogdanov.bsky.social
Chief Scientific Officer at Cybernetica. Bleeding edge tech in privacy, identity, cybersecurity, e-government. Personal opinions only. Do ask about Sharemind!
Reposted by Dan Bogdanov
Don't forget to apply for some of the limited space at the Computing on Encrypted Data Industry Day at Bocconi University in Milan on December 12th ....
coedcon.github.io/index.html
There are speakers from Nokia, Bosch, Cybernetica, Roseman Labs, Lattica AI, ST Microelectronics (and me)
coedcon.github.io/index.html
There are speakers from Nokia, Bosch, Cybernetica, Roseman Labs, Lattica AI, ST Microelectronics (and me)
COED Industry Day
coedcon.github.io
November 8, 2025 at 1:27 PM
Don't forget to apply for some of the limited space at the Computing on Encrypted Data Industry Day at Bocconi University in Milan on December 12th ....
coedcon.github.io/index.html
There are speakers from Nokia, Bosch, Cybernetica, Roseman Labs, Lattica AI, ST Microelectronics (and me)
coedcon.github.io/index.html
There are speakers from Nokia, Bosch, Cybernetica, Roseman Labs, Lattica AI, ST Microelectronics (and me)
Cybersecurity protip from Digital Tech Summit in Copenhagen.
November 6, 2025 at 3:07 PM
Cybersecurity protip from Digital Tech Summit in Copenhagen.
Reposted by Dan Bogdanov
We are looking for a cybersecurity professor to strengthen Estonia's existing expertise. We are looking for an ambitious researcher (with a steady presence at big four security conferences) with demonstrated leadership skills who can build a larger team. iacr.org/jobs/item/4075
Professor of Cybersecurity
iacr.org
November 3, 2025 at 10:24 AM
We are looking for a cybersecurity professor to strengthen Estonia's existing expertise. We are looking for an ambitious researcher (with a steady presence at big four security conferences) with demonstrated leadership skills who can build a larger team. iacr.org/jobs/item/4075
Travelling to Copenhagen this week to constructively rain on peoples' AI parades at the Digital Tech Summit.
Constructively, I promise. Can't have economic weakness in Europe this time around, or you know, ever.
event.ing.dk/dts5/session...
Constructively, I promise. Can't have economic weakness in Europe this time around, or you know, ever.
event.ing.dk/dts5/session...
Session Details
event.ing.dk
November 3, 2025 at 3:54 PM
Travelling to Copenhagen this week to constructively rain on peoples' AI parades at the Digital Tech Summit.
Constructively, I promise. Can't have economic weakness in Europe this time around, or you know, ever.
event.ing.dk/dts5/session...
Constructively, I promise. Can't have economic weakness in Europe this time around, or you know, ever.
event.ing.dk/dts5/session...
At least in Estonia, the story of "digital signatures and Smart-ID could be broken by a quantum computer" still raises eyebrows.
www.smbc-comics.com/comic/intuit...
www.smbc-comics.com/comic/intuit...
Saturday Morning Breakfast Cereal - Intuition
Saturday Morning Breakfast Cereal - Intuition
www.smbc-comics.com
October 27, 2025 at 6:48 AM
At least in Estonia, the story of "digital signatures and Smart-ID could be broken by a quantum computer" still raises eyebrows.
www.smbc-comics.com/comic/intuit...
www.smbc-comics.com/comic/intuit...
If I get cryptographic agility in systems *and* get rid of MD5, I would totally have no cryptographically relevant quantum computer ever. May it do computational chemistry and cold fusion for all I care.
Might be it won't do that either.
Getting rid of MD5 is still a trip to Awesome Town.
Might be it won't do that either.
Getting rid of MD5 is still a trip to Awesome Town.
Alright, so bear with me here: what if quantum computers are a hoax and the whole PQ transition is just an excuse to finally get rid of MD5.
October 21, 2025 at 10:33 AM
If I get cryptographic agility in systems *and* get rid of MD5, I would totally have no cryptographically relevant quantum computer ever. May it do computational chemistry and cold fusion for all I care.
Might be it won't do that either.
Getting rid of MD5 is still a trip to Awesome Town.
Might be it won't do that either.
Getting rid of MD5 is still a trip to Awesome Town.
Reposted by Dan Bogdanov
Looks like cryptographers can still safely fall asleep again....
eprint.iacr.org/2025/1945
Lattice crypto is still a go for the post-quantum transition.
eprint.iacr.org/2025/1945
Lattice crypto is still a go for the post-quantum transition.
So about that Quantum Lattice Thing: Rebuttal to "Exact Coset Sampling for Quantum Lattice Algorithms"
In this note we identify major issues with “Exact Coset Sampling for Quantum Lattice Algorithms” by Zhang. The issues include:
• in the first version, the proposed algorithm requires foreknowledge of...
eprint.iacr.org
October 20, 2025 at 3:30 PM
Looks like cryptographers can still safely fall asleep again....
eprint.iacr.org/2025/1945
Lattice crypto is still a go for the post-quantum transition.
eprint.iacr.org/2025/1945
Lattice crypto is still a go for the post-quantum transition.
Reposted by Dan Bogdanov
Picard technology tip: Sometimes your chief engineer can build new systems that are better than your existing enterprise software.
October 19, 2025 at 8:04 PM
Picard technology tip: Sometimes your chief engineer can build new systems that are better than your existing enterprise software.
Reposted by Dan Bogdanov
Yesterday, news broke that Dominion Voting Systems was sold to a new company, Liberty Vote. Dominion, the second-largest voting systems vendor in the US that currently tabulates 1 in 5 American votes, is no more.
www.voting.works/news/public-...
www.voting.works/news/public-...
October 10, 2025 at 5:08 PM
Yesterday, news broke that Dominion Voting Systems was sold to a new company, Liberty Vote. Dominion, the second-largest voting systems vendor in the US that currently tabulates 1 in 5 American votes, is no more.
www.voting.works/news/public-...
www.voting.works/news/public-...
Reposted by Dan Bogdanov
Discord user IDs getting leaked is the entirely predictable consequence of requiring platforms to do age verification. That data never goes away, it spreads. In this case, into appeals in a breached customer support database. And predictably, it can get worse. www.404media.co/the-discord-...
The Discord Hack is Every User’s Worst Nightmare
A hack impacting Discord’s age verification process shows in stark terms the risk of tech companies collecting users’ ID documents. Now the hackers are posting peoples’ IDs and other sensitive informa...
www.404media.co
October 9, 2025 at 7:59 PM
Discord user IDs getting leaked is the entirely predictable consequence of requiring platforms to do age verification. That data never goes away, it spreads. In this case, into appeals in a breached customer support database. And predictably, it can get worse. www.404media.co/the-discord-...
Reposted by Dan Bogdanov
The next COED Industry Day is going to be held in Milan....
coedcon.github.io/index.html
Going to be a super cool mix of speakers, from Bosch, Nokia Bell Labs, Cybernetica, Roseman Labs and Zama
coedcon.github.io/index.html
Going to be a super cool mix of speakers, from Bosch, Nokia Bell Labs, Cybernetica, Roseman Labs and Zama
COED Industry Day
coedcon.github.io
October 9, 2025 at 2:06 PM
The next COED Industry Day is going to be held in Milan....
coedcon.github.io/index.html
Going to be a super cool mix of speakers, from Bosch, Nokia Bell Labs, Cybernetica, Roseman Labs and Zama
coedcon.github.io/index.html
Going to be a super cool mix of speakers, from Bosch, Nokia Bell Labs, Cybernetica, Roseman Labs and Zama
Reposted by Dan Bogdanov
My colleagues from Cybernetica and I decided to make another variant of Smart-ID / SplitKey protocol. Coppercloud is a two-party blind RSA signing with private key being split between a user and a server.
Perfect for the future of privacy-preserving digital wallets! 🌐✨
Perfect for the future of privacy-preserving digital wallets! 🌐✨
Coppercloud: Blind Server-Supported RSA Signatures (Nikita Snetkov, Mihkel Jaas Karu, Jelizaveta Vakarjuk, Alisa Pankova) ia.cr/2025/1824
October 8, 2025 at 10:24 AM
My colleagues from Cybernetica and I decided to make another variant of Smart-ID / SplitKey protocol. Coppercloud is a two-party blind RSA signing with private key being split between a user and a server.
Perfect for the future of privacy-preserving digital wallets! 🌐✨
Perfect for the future of privacy-preserving digital wallets! 🌐✨
Reposted by Dan Bogdanov
What is chat control? Good video explainer developed by @carmelatroncoso.bsky.social and team at Max Planck Institute for Security and Privacy #chatcontrol www.youtube.com/watch?v=-y2O...
What is Chat Control?
YouTube video by Max Planck Institute for Security and Privacy
www.youtube.com
October 6, 2025 at 3:18 PM
What is chat control? Good video explainer developed by @carmelatroncoso.bsky.social and team at Max Planck Institute for Security and Privacy #chatcontrol www.youtube.com/watch?v=-y2O...
Reposted by Dan Bogdanov
A lot of generally principled people have been riding the “I do this because I believe in the mission of stopping bad guys” and I think those principles are going to be tested soon.
September 19, 2025 at 12:58 AM
A lot of generally principled people have been riding the “I do this because I believe in the mission of stopping bad guys” and I think those principles are going to be tested soon.
@lilimilani.bsky.social Would there be value in validating this study on Estonian biobank data? www.nature.com/articles/s41...
Learning the natural history of human disease with generative transformers - Nature
Delphi-2M forecasts a person’s future health, covering more than 1,000 diseases, provides insights into co-morbidity dynamics and generates synthetic data for the training of AI models that have never...
www.nature.com
September 18, 2025 at 3:55 AM
@lilimilani.bsky.social Would there be value in validating this study on Estonian biobank data? www.nature.com/articles/s41...
Reposted by Dan Bogdanov
The EU Parliament has published a new proposal for Chat Control to mass-surveil all digital communication in Europe. The proposal is ineffective, weakens secure communication, and violates basic human privacy. This must be stopped immediately. #ChatControl
csa-scientist-open-letter.org/Sep2025
csa-scientist-open-letter.org/Sep2025
csa-scientist-open-letter.org
September 9, 2025 at 11:11 AM
The EU Parliament has published a new proposal for Chat Control to mass-surveil all digital communication in Europe. The proposal is ineffective, weakens secure communication, and violates basic human privacy. This must be stopped immediately. #ChatControl
csa-scientist-open-letter.org/Sep2025
csa-scientist-open-letter.org/Sep2025
Reposted by Dan Bogdanov
I'm sympathetic, but I do think it is charming how teh lawyerz believe that you can legislate your way out of a threat model.
"No one would ever do that, it's illegal."
"No one would ever do that, it's illegal."
This is a serious breach of privacy. Yet employee records have limited protection under federal privacy law. We urgently need legal change to better protect employee privacy.
dx.doi.org/10.2139/ssrn...
dx.doi.org/10.2139/ssrn...
September 10, 2025 at 8:05 AM
I'm sympathetic, but I do think it is charming how teh lawyerz believe that you can legislate your way out of a threat model.
"No one would ever do that, it's illegal."
"No one would ever do that, it's illegal."
Reposted by Dan Bogdanov
Check out the new open letter signed by more than 450 scientists who have serious concerns on the latest (July 2025) version of the chat control proposal. csa-scientist-open-letter.org/Sep2025
csa-scientist-open-letter.org
September 9, 2025 at 9:00 AM
Check out the new open letter signed by more than 450 scientists who have serious concerns on the latest (July 2025) version of the chat control proposal. csa-scientist-open-letter.org/Sep2025
Reposted by Dan Bogdanov
Bart Preneel warns EU’s #chatcontrol is dangerous & ineffective: criminals will evade scanners, millions of false positives expected, and end-to-end encryption for all could collapse, threatening privacy, journalists & activists.
#Privacy #Encryption #EU
www.demorgen.be/nieuws/meer-...
#Privacy #Encryption #EU
www.demorgen.be/nieuws/meer-...
Meer dan vierhonderd experts waarschuwen voor EU-voorstel ‘chat control’: ‘We beseffen onvoldoende wat voor gevolgen dat zou hebben’
Onhaalbaar, duur en gevaarlijk voor alle burgers. In een nieuwe open brief waarschuwen meer dan vierhonderd experts voor een wetsvoorstel van de EU om kindermisbruik op te sporen in versleutelde chatb...
www.demorgen.be
September 9, 2025 at 9:00 AM
Bart Preneel warns EU’s #chatcontrol is dangerous & ineffective: criminals will evade scanners, millions of false positives expected, and end-to-end encryption for all could collapse, threatening privacy, journalists & activists.
#Privacy #Encryption #EU
www.demorgen.be/nieuws/meer-...
#Privacy #Encryption #EU
www.demorgen.be/nieuws/meer-...
Teaduste akadeemia küberturvalisuse komisjon avaldas 2024-2025 hooajal tehtud riskianalüüsid.
koodivaramu.eesti.ee/riigi-valimi...
koodivaramu.eesti.ee/riigi-valimi...
2025 · main · Riigi Valimisteenistus / valimised-turve · GitLab
valimised-turve
koodivaramu.eesti.ee
September 8, 2025 at 5:34 AM
Teaduste akadeemia küberturvalisuse komisjon avaldas 2024-2025 hooajal tehtud riskianalüüsid.
koodivaramu.eesti.ee/riigi-valimi...
koodivaramu.eesti.ee/riigi-valimi...
Reposted by Dan Bogdanov
Really speaking to US academics here: rumor I heard is that DARPA appears to be “just not starting new (unclassified) projects.”
September 5, 2025 at 3:35 PM
Really speaking to US academics here: rumor I heard is that DARPA appears to be “just not starting new (unclassified) projects.”
Teaduste akadeemia küberturvalisuse komisjoni augusti istungi protokoll on avaldatud.
www.akadeemia.ee/akadeemia/no...
www.akadeemia.ee/akadeemia/no...
Küberturvalisuse komisjon - Eesti teaduste akadeemia
KOMISJONI KOOSSEISDan Bogdanov (esimees), Krista Fischer, Irina Klementi, Markko Liutkevičius, Urmo Parm, Mauno Pihelgas, Eleri Karu, Anu Realo, Andra Siibak, Inga Sokk, Riivo Talviste, Tanel Tammet, ...
www.akadeemia.ee
September 5, 2025 at 8:19 AM
Teaduste akadeemia küberturvalisuse komisjoni augusti istungi protokoll on avaldatud.
www.akadeemia.ee/akadeemia/no...
www.akadeemia.ee/akadeemia/no...