Sabine Oechsner
@proofnerd.bsky.social
cryptography and pretty proofs | PL-curious | everything is MPC | assistant professor @ VU Amsterdam
soechsner.de
soechsner.de
Pinned
MPC in the Wild is a research project that aims to study the real-world implementation security of MPC protocols, in particular, the gap between assumptions on the theory side and implementation choices made in practice.
mpcinthewild.github.io
Interested 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!
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!
Reposted by Sabine Oechsner
Bit of a last-minute announcement: school on isogenies 9 - 13 Feb at Okinawa Institute of Science and Technology (OIST)
groups.oist.jp/tsvp/event/s...
Registration deadline is tomorrow (15 Jan).
groups.oist.jp/tsvp/event/s...
Registration deadline is tomorrow (15 Jan).
School: Introduction to Isogeny-based Cryptography (TSVP-TP25IC)
Title: "Introduction to Isogeny-based Cryptography" Abstract: Isogeny-based cryptography is a fast-moving field, and recent developments have introduced several new techniques, making the barrier of e...
groups.oist.jp
January 14, 2026 at 1:34 AM
Bit of a last-minute announcement: school on isogenies 9 - 13 Feb at Okinawa Institute of Science and Technology (OIST)
groups.oist.jp/tsvp/event/s...
Registration deadline is tomorrow (15 Jan).
groups.oist.jp/tsvp/event/s...
Registration deadline is tomorrow (15 Jan).
Reposted by Sabine Oechsner
Social Foundations of Cryptography: Autumn School
London, UK | 15 to 17 September 2026
social-foundations-of-cryptography.gitlab.io/school
London, UK | 15 to 17 September 2026
social-foundations-of-cryptography.gitlab.io/school
January 13, 2026 at 4:30 PM
Social Foundations of Cryptography: Autumn School
London, UK | 15 to 17 September 2026
social-foundations-of-cryptography.gitlab.io/school
London, UK | 15 to 17 September 2026
social-foundations-of-cryptography.gitlab.io/school
Reposted by Sabine Oechsner
So a question for people working on subways? Construction? My daughter wants to know what these scribbles on the wall of the subway tunnel shortly before Essen Main Station, approaching from the south might mean.
January 13, 2026 at 7:09 AM
So a question for people working on subways? Construction? My daughter wants to know what these scribbles on the wall of the subway tunnel shortly before Essen Main Station, approaching from the south might mean.
Reposted by Sabine Oechsner
if you want a long read that involves udders, a hot air balloon, and some extremely dubious data on egg prices, the story I’ve been working on for the last few months where I tried to single-handedly take on every government function myself is now online! www.theatlantic.com/magazine/202...
I Tried to Be the Government. It Did Not Go Well.
My five-month quest to monitor the weather, track inflation, and inspect milk for harmful microorganisms
www.theatlantic.com
January 8, 2026 at 8:41 PM
if you want a long read that involves udders, a hot air balloon, and some extremely dubious data on egg prices, the story I’ve been working on for the last few months where I tried to single-handedly take on every government function myself is now online! www.theatlantic.com/magazine/202...
Reposted by Sabine Oechsner
The Real World Crypto 2026 program is now online: rwc.iacr.org/2026/program...
We look forward to seeing many of you!
We look forward to seeing many of you!
RWC 2026 program
Real World Crypto Symposium
rwc.iacr.org
January 8, 2026 at 10:16 PM
The Real World Crypto 2026 program is now online: rwc.iacr.org/2026/program...
We look forward to seeing many of you!
We look forward to seeing many of you!
Reposted by Sabine Oechsner
Are you interested in programming languages research and mentoring up and coming PL researchers?
Then you should fill out the self-nomination form for the PLDI'26 Student Research Competition's PC: forms.gle/KSacbLEtw1Yw...
(Note, you must have a PhD by June 2026 to be a judge)
Then you should fill out the self-nomination form for the PLDI'26 Student Research Competition's PC: forms.gle/KSacbLEtw1Yw...
(Note, you must have a PhD by June 2026 to be a judge)
[PLDI 26] SRC Program Committee Nomination Form
Thank you for your interest in the program committee for the SRC! We're excited for you (or someone you are nominating) to join us in providing high-quality feedback to junior researchers in the PLDI ...
forms.gle
January 6, 2026 at 9:30 PM
Are you interested in programming languages research and mentoring up and coming PL researchers?
Then you should fill out the self-nomination form for the PLDI'26 Student Research Competition's PC: forms.gle/KSacbLEtw1Yw...
(Note, you must have a PhD by June 2026 to be a judge)
Then you should fill out the self-nomination form for the PLDI'26 Student Research Competition's PC: forms.gle/KSacbLEtw1Yw...
(Note, you must have a PhD by June 2026 to be a judge)
Reposted by Sabine Oechsner
He's a 10 but only in bits of security
He's a 10 but only in millisieverts/second
he’s a 10, but only in scoville units
January 6, 2026 at 9:53 PM
He's a 10 but only in bits of security
Reposted by Sabine Oechsner
Come work with us!
Lecturer (≅ Assistant Professor/Juniorprofessor/Maître de conférences) in Cryptography at King’s College London
martinralbrecht.wordpress.com/2026/01/05/l...
Lecturer (≅ Assistant Professor/Juniorprofessor/Maître de conférences) in Cryptography at King’s College London
martinralbrecht.wordpress.com/2026/01/05/l...
Lecturer (≅ Assistant Professor/Juniorprofessor/Maître de conférences) in Cryptography at King’s College London 2026
We are looking to recruit a lecturer in cryptography at King’s College London to work with us within the cybersecurity group: I think it’s fair to say we got strong expertise in lattice-based and p…
martinralbrecht.wordpress.com
January 5, 2026 at 12:04 PM
Come work with us!
Lecturer (≅ Assistant Professor/Juniorprofessor/Maître de conférences) in Cryptography at King’s College London
martinralbrecht.wordpress.com/2026/01/05/l...
Lecturer (≅ Assistant Professor/Juniorprofessor/Maître de conférences) in Cryptography at King’s College London
martinralbrecht.wordpress.com/2026/01/05/l...
Reposted by Sabine Oechsner
For those of you keeping score at home, I’ve been informed by Alessandra that it’s a classic spaghetti with oil and cheese!
Because this account right here really gets to the bottom of the important topics.
Because this account right here really gets to the bottom of the important topics.
Folks, she brought a whole plate of spaghetti to the broadcast center to do her headshot. She then houses that spaghetti.
Mattia sips on an espresso during his.
Truly the heroes we need during these times.
Mattia sips on an espresso during his.
Truly the heroes we need during these times.
January 2, 2026 at 6:49 PM
For those of you keeping score at home, I’ve been informed by Alessandra that it’s a classic spaghetti with oil and cheese!
Because this account right here really gets to the bottom of the important topics.
Because this account right here really gets to the bottom of the important topics.
Reposted by Sabine Oechsner
Folks, she brought a whole plate of spaghetti to the broadcast center to do her headshot. She then houses that spaghetti.
Mattia sips on an espresso during his.
Truly the heroes we need during these times.
Mattia sips on an espresso during his.
Truly the heroes we need during these times.
January 2, 2026 at 1:46 PM
Folks, she brought a whole plate of spaghetti to the broadcast center to do her headshot. She then houses that spaghetti.
Mattia sips on an espresso during his.
Truly the heroes we need during these times.
Mattia sips on an espresso during his.
Truly the heroes we need during these times.
Deadline is January 7. Still a few days left to apply...
Interested 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!
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!
MPC in the Wild is a research project that aims to study the real-world implementation security of MPC protocols, in particular, the gap between assumptions on the theory side and implementation choices made in practice.
mpcinthewild.github.io
January 2, 2026 at 10:17 AM
Deadline is January 7. Still a few days left to apply...
Reposted by Sabine Oechsner
cryptographers are people too, they lose their keys and everything
NEW EPISODE!
The IACR lost the keys to decrypt their encrypted election results. We welcome Matt Bernhard who works on secure voting systems to explain which Helios bits are homomorphically additive or not and more:
securitycryptographywhatever.com/2025/12/30/i...
www.youtube.com/watch?v=euw_...
The IACR lost the keys to decrypt their encrypted election results. We welcome Matt Bernhard who works on secure voting systems to explain which Helios bits are homomorphically additive or not and more:
securitycryptographywhatever.com/2025/12/30/i...
www.youtube.com/watch?v=euw_...
The IACR Can
The International Association of Cryptologic Research (IACR) held their regular election using secure voting software called Helios…and lost the keys to decr...
securitycryptographywhatever.com
December 31, 2025 at 2:25 AM
cryptographers are people too, they lose their keys and everything
Reposted by Sabine Oechsner
Advice I now give to grad students and postdocs in the sciences: Don’t just try to meet and impress senior scientists. They’ll retire soon. Get to know your fellow students - make friends where possible, be colleagues at least. These are the people you’ll be sharing the field with for decades.
December 26, 2025 at 7:01 PM
Advice I now give to grad students and postdocs in the sciences: Don’t just try to meet and impress senior scientists. They’ll retire soon. Get to know your fellow students - make friends where possible, be colleagues at least. These are the people you’ll be sharing the field with for decades.
Reposted by Sabine Oechsner
@rwc.iacr.org accepted talks are out....
rwc.iacr.org/2026/accepte...
I am not sure how they are going to fit them all into three days
rwc.iacr.org/2026/accepte...
I am not sure how they are going to fit them all into three days
RWC 2026 accepted papers
Real World Crypto Symposium
rwc.iacr.org
December 19, 2025 at 7:54 AM
@rwc.iacr.org accepted talks are out....
rwc.iacr.org/2026/accepte...
I am not sure how they are going to fit them all into three days
rwc.iacr.org/2026/accepte...
I am not sure how they are going to fit them all into three days
Reposted by Sabine Oechsner
Your quarterly reminder to submit a paper to Communications in Cryptology...
cic.iacr.org
It is Diamond Open Access (readers and authors do not pay) and it contains all your new cool cryptographic research.
Next deadline for submission is Feb 2nd.
cic.iacr.org
It is Diamond Open Access (readers and authors do not pay) and it contains all your new cool cryptographic research.
Next deadline for submission is Feb 2nd.
IACR Communications in Cryptology
cic.iacr.org
December 19, 2025 at 8:02 AM
Your quarterly reminder to submit a paper to Communications in Cryptology...
cic.iacr.org
It is Diamond Open Access (readers and authors do not pay) and it contains all your new cool cryptographic research.
Next deadline for submission is Feb 2nd.
cic.iacr.org
It is Diamond Open Access (readers and authors do not pay) and it contains all your new cool cryptographic research.
Next deadline for submission is Feb 2nd.
Come work with Peter Scholl @schollster.bsky.social and me in Aarhus!
Internships in MPC available, for both recent PhD graduates and current PhD students...
mpcinthewild.github.io
This is a project funded by the Zama Cryptanalysis Grant program
mpcinthewild.github.io
This is a project funded by the Zama Cryptanalysis Grant program
MPC in the Wild is a research project that aims to study the real-world implementation security of MPC protocols, in particular, the gap between assumptions on the theory side and implementation choices made in practice.
mpcinthewild.github.io
December 17, 2025 at 12:17 PM
Come work with Peter Scholl @schollster.bsky.social and me in Aarhus!
Reposted by Sabine Oechsner
Cryptography shows that AI filters will never work....
www.quantamagazine.org/cryptographe...
Nice application of crypto to AI, and shows that AI has inherent limitations.
www.quantamagazine.org/cryptographe...
Nice application of crypto to AI, and shows that AI has inherent limitations.
Cryptographers Show That AI Protections Will Always Have Holes | Quanta Magazine
Large language models such as ChatGPT come with filters to keep certain info from getting out. A new mathematical argument shows that systems like this can never be completely safe.
www.quantamagazine.org
December 16, 2025 at 7:08 AM
Cryptography shows that AI filters will never work....
www.quantamagazine.org/cryptographe...
Nice application of crypto to AI, and shows that AI has inherent limitations.
www.quantamagazine.org/cryptographe...
Nice application of crypto to AI, and shows that AI has inherent limitations.
Of course it does, it's a Maglite!
December 16, 2025 at 7:22 AM
Of course it does, it's a Maglite!
Interested 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!
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!
MPC in the Wild is a research project that aims to study the real-world implementation security of MPC protocols, in particular, the gap between assumptions on the theory side and implementation choices made in practice.
mpcinthewild.github.io
December 6, 2025 at 4:21 PM
Interested 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!
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!
That was in the good old days when you could always open the doors on both sides of the train. I believe you need serious commitment these days to pull that off.
November 28, 2025 at 2:49 PM
That was in the good old days when you could always open the doors on both sides of the train. I believe you need serious commitment these days to pull that off.
You are laughing, but my class managed to do that on a school trip once 🥲
November 28, 2025 at 2:44 PM
You are laughing, but my class managed to do that on a school trip once 🥲
I had almost forgotten about Time AI
November 25, 2025 at 8:36 PM
I had almost forgotten about Time AI
Reposted by Sabine Oechsner
The International Association for Cryptologic Research has used heliosvoting.org – my online voting system – for a number of years.
This year, a trustee lost their secret key. The election has to be re-run.
Below, a few thoughts that didn't fit in the NYT piece.
www.nytimes.com/2025/11/21/w...
This year, a trustee lost their secret key. The election has to be re-run.
Below, a few thoughts that didn't fit in the NYT piece.
www.nytimes.com/2025/11/21/w...
Cryptographers Held an Election. They Can’t Decrypt the Results.
www.nytimes.com
November 22, 2025 at 2:40 AM
The International Association for Cryptologic Research has used heliosvoting.org – my online voting system – for a number of years.
This year, a trustee lost their secret key. The election has to be re-run.
Below, a few thoughts that didn't fit in the NYT piece.
www.nytimes.com/2025/11/21/w...
This year, a trustee lost their secret key. The election has to be re-run.
Below, a few thoughts that didn't fit in the NYT piece.
www.nytimes.com/2025/11/21/w...
At least I can thank that guy for one revelation: this whole dog thing bothers me so much because it is fundamentally about consent.
November 16, 2025 at 1:44 PM
At least I can thank that guy for one revelation: this whole dog thing bothers me so much because it is fundamentally about consent.