Sabine Oechsner
@proofnerd.bsky.social
cryptography and pretty proofs | PL-curious | everything is MPC | assistant professor @ VU Amsterdam
soechsner.de
soechsner.de
Remember to submit your ProTeCS talk. The deadline is on Thursday!
Planning your trip to Eurocrypt or looking for an excuse to still go? The reviewers did not appreciate your too involved or too elegant proofs?
Consider submitting a talk to ProTeCS (protecs-workshop.gitlab.io), an affiliated event of EC, where we celebrate proofs as independent objects of study!
Consider submitting a talk to ProTeCS (protecs-workshop.gitlab.io), an affiliated event of EC, where we celebrate proofs as independent objects of study!
Call for Presentations
Workshop on Proofs and Proof Techniques for Cryptographic Security. Affiliated with Eurocrypt 2026.
protecs-workshop.gitlab.io
February 14, 2026 at 9:07 PM
Remember to submit your ProTeCS talk. The deadline is on Thursday!
Reposted by Sabine Oechsner
When Zero-Knowledge Proofs Are Not Enough: Lessons from a Real-World Zero-Knowledge Authorization System, a.k.a Analysis and Vulnerabilities in zkLogin (eprint.iacr.org/2026/227) (1/n)
February 13, 2026 at 5:06 PM
When Zero-Knowledge Proofs Are Not Enough: Lessons from a Real-World Zero-Knowledge Authorization System, a.k.a Analysis and Vulnerabilities in zkLogin (eprint.iacr.org/2026/227) (1/n)
TIL there is an actual historic reason for why the Dutch gave their slow local trains the very intuitive name "sprinter"
m.youtube.com/watch?v=gTjy...
m.youtube.com/watch?v=gTjy...
Why are these slow trains called Sprinter?
YouTube video by Trains Are Awesome
m.youtube.com
February 12, 2026 at 7:56 PM
TIL there is an actual historic reason for why the Dutch gave their slow local trains the very intuitive name "sprinter"
m.youtube.com/watch?v=gTjy...
m.youtube.com/watch?v=gTjy...
Reposted by Sabine Oechsner
German place-names rendered into English (morphologically reconstructed from historical forms)
February 10, 2026 at 11:59 AM
German place-names rendered into English (morphologically reconstructed from historical forms)
Reposted by Sabine Oechsner
Call for submissions: #TPMPC2026 (Theory & Practice of MPC)
Submit your latest and coolest results by March 2, 2026.
Aarhus, Denmark, May 18–22, 2026.
Monday: MPC security in practice.
Friday: Symposium celebrating Ivan Damgård’s work.
Links in comments.
Submit your latest and coolest results by March 2, 2026.
Aarhus, Denmark, May 18–22, 2026.
Monday: MPC security in practice.
Friday: Symposium celebrating Ivan Damgård’s work.
Links in comments.
February 10, 2026 at 8:18 AM
Call for submissions: #TPMPC2026 (Theory & Practice of MPC)
Submit your latest and coolest results by March 2, 2026.
Aarhus, Denmark, May 18–22, 2026.
Monday: MPC security in practice.
Friday: Symposium celebrating Ivan Damgård’s work.
Links in comments.
Submit your latest and coolest results by March 2, 2026.
Aarhus, Denmark, May 18–22, 2026.
Monday: MPC security in practice.
Friday: Symposium celebrating Ivan Damgård’s work.
Links in comments.
Reposted by Sabine Oechsner
I am co-organising (with @drl3c7er.bsky.social and Lucjan Hanzlik) a workshop on Privacy-Enhancing Cryptography in Rome on May 10 as an affiliated event to IACR Eurocrypt. Submit your best PEC-work (3-page extended abstract) for presentation by February 25th: privcryptworkshop.github.io
PrivCrypt 2026
privcryptworkshop.github.io
February 5, 2026 at 11:26 PM
I am co-organising (with @drl3c7er.bsky.social and Lucjan Hanzlik) a workshop on Privacy-Enhancing Cryptography in Rome on May 10 as an affiliated event to IACR Eurocrypt. Submit your best PEC-work (3-page extended abstract) for presentation by February 25th: privcryptworkshop.github.io
Reposted by Sabine Oechsner
Last chance: the early registration deadline is tomorrow, February 6 (AoE).
rwc.iacr.org/2026/registr...
rwc.iacr.org/2026/registr...
RWC 2026 registration
Real World Crypto Symposium
rwc.iacr.org
February 5, 2026 at 3:37 PM
Last chance: the early registration deadline is tomorrow, February 6 (AoE).
rwc.iacr.org/2026/registr...
rwc.iacr.org/2026/registr...
Reposted by Sabine Oechsner
The IACR board sent a survey to members last year, and it took us a while to analyze the results and publish findings. You can see them at iacr.org/surveyresults/
International Association for Cryptologic Research
iacr.org
February 3, 2026 at 12:24 AM
The IACR board sent a survey to members last year, and it took us a while to analyze the results and publish findings. You can see them at iacr.org/surveyresults/
Reposted by Sabine Oechsner
Planning your trip to Eurocrypt or looking for an excuse to still go? The reviewers did not appreciate your too involved or too elegant proofs?
Consider submitting a talk to ProTeCS (protecs-workshop.gitlab.io), an affiliated event of EC, where we celebrate proofs as independent objects of study!
Consider submitting a talk to ProTeCS (protecs-workshop.gitlab.io), an affiliated event of EC, where we celebrate proofs as independent objects of study!
Call for Presentations
Workshop on Proofs and Proof Techniques for Cryptographic Security. Affiliated with Eurocrypt 2026.
protecs-workshop.gitlab.io
January 30, 2026 at 12:51 PM
Planning your trip to Eurocrypt or looking for an excuse to still go? The reviewers did not appreciate your too involved or too elegant proofs?
Consider submitting a talk to ProTeCS (protecs-workshop.gitlab.io), an affiliated event of EC, where we celebrate proofs as independent objects of study!
Consider submitting a talk to ProTeCS (protecs-workshop.gitlab.io), an affiliated event of EC, where we celebrate proofs as independent objects of study!
Reposted by Sabine Oechsner
Now's your chance to participate in growing academic cryptography participation in the Middle East and North Africa region: the Africacrypt call for papers is out!
Submit your paper and come join us this July in beautiful Hammamet, Tunisia: www.africacrypt2026.tn/call-for-pap...
Submit your paper and come join us this July in beautiful Hammamet, Tunisia: www.africacrypt2026.tn/call-for-pap...
Call for papers
www.africacrypt2026.tn
January 29, 2026 at 11:33 AM
Now's your chance to participate in growing academic cryptography participation in the Middle East and North Africa region: the Africacrypt call for papers is out!
Submit your paper and come join us this July in beautiful Hammamet, Tunisia: www.africacrypt2026.tn/call-for-pap...
Submit your paper and come join us this July in beautiful Hammamet, Tunisia: www.africacrypt2026.tn/call-for-pap...
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.