Luca De Feo
@bsky.defeo.lu
Researcher in cryptography @ IBM Research, chief isogenista, SageMath developer, DevOps in my spare time. Opinions my own.
On Mastodon: @[email protected]
On Mastodon: @[email protected]
Reposted by Luca De Feo
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 11:15 AM
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
Crazy!
I grew up just below the Sanctuary: I could see it from my childhood room's balcony, perched up there on the mountain. It's my go-to cycling spot any time I go back. I am deeply aware of the juta pilgrimage, and yet I'd never heard of the juta dei femminielli.
infoirpinia.it/candelora-di...
I grew up just below the Sanctuary: I could see it from my childhood room's balcony, perched up there on the mountain. It's my go-to cycling spot any time I go back. I am deeply aware of the juta pilgrimage, and yet I'd never heard of the juta dei femminielli.
infoirpinia.it/candelora-di...
December 8, 2025 at 1:04 AM
Crazy!
I grew up just below the Sanctuary: I could see it from my childhood room's balcony, perched up there on the mountain. It's my go-to cycling spot any time I go back. I am deeply aware of the juta pilgrimage, and yet I'd never heard of the juta dei femminielli.
infoirpinia.it/candelora-di...
I grew up just below the Sanctuary: I could see it from my childhood room's balcony, perched up there on the mountain. It's my go-to cycling spot any time I go back. I am deeply aware of the juta pilgrimage, and yet I'd never heard of the juta dei femminielli.
infoirpinia.it/candelora-di...
Reposted by Luca De Feo
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!
Reposted by Luca De Feo
IIUC, having a passenger dressed as batman causes other passengers to be more willing to give up their seats to a pregnant woman in the subway (in a statistically very significant way). www.nature.com/articles/s44...
Pagnini &al, “Unexpected events and prosocial behavior: the Batman effect”
Pagnini &al, “Unexpected events and prosocial behavior: the Batman effect”
Unexpected events and prosocial behavior: the Batman effect - npj Mental Health Research
npj Mental Health Research - Unexpected events and prosocial behavior: the Batman effect
www.nature.com
November 24, 2025 at 9:21 PM
IIUC, having a passenger dressed as batman causes other passengers to be more willing to give up their seats to a pregnant woman in the subway (in a statistically very significant way). www.nature.com/articles/s44...
Pagnini &al, “Unexpected events and prosocial behavior: the Batman effect”
Pagnini &al, “Unexpected events and prosocial behavior: the Batman effect”
Reposted by Luca De Feo
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...
Yes! It was me!
I stole the key from Moti's hard drive and wiped it 😈
You'll never get it back. MUAHAHAHAHAH!
I stole the key from Moti's hard drive and wiped it 😈
You'll never get it back. MUAHAHAHAHAH!
November 22, 2025 at 8:13 PM
Yes! It was me!
I stole the key from Moti's hard drive and wiped it 😈
You'll never get it back. MUAHAHAHAHAH!
I stole the key from Moti's hard drive and wiped it 😈
You'll never get it back. MUAHAHAHAHAH!
Reposted by Luca De Feo
These very nice slides by Marie Farge on how researchers can regain control of publication have been brought to my attention: openscience.ens.fr/MARIE_FARGE/... — I think they're worth spreading more widely!
November 17, 2025 at 11:26 AM
These very nice slides by Marie Farge on how researchers can regain control of publication have been brought to my attention: openscience.ens.fr/MARIE_FARGE/... — I think they're worth spreading more widely!
Got an invitation to review for a journal that charges > 3 k$ in APC. How much should I charge for the review?
November 17, 2025 at 1:08 AM
Got an invitation to review for a journal that charges > 3 k$ in APC. How much should I charge for the review?
Reposted by Luca De Feo
holy shiiiiiiiiiiiiiiit
On Reed–Solomon Proximity Gaps Conjectures (Elizabeth Crites, Alistair Stewart) ia.cr/2025/2046
November 5, 2025 at 9:03 PM
holy shiiiiiiiiiiiiiiit
Reposted by Luca De Feo
Valerio Ardizio is the newest member of Frederik Vercauteren's team!
"I chose COSIC because of its welcoming, inspiring, and stimulating research environment, as well as the outstanding expertise of the researchers who are part of this group."
#choosecosic
"I chose COSIC because of its welcoming, inspiring, and stimulating research environment, as well as the outstanding expertise of the researchers who are part of this group."
#choosecosic
November 3, 2025 at 4:01 PM
Valerio Ardizio is the newest member of Frederik Vercauteren's team!
"I chose COSIC because of its welcoming, inspiring, and stimulating research environment, as well as the outstanding expertise of the researchers who are part of this group."
#choosecosic
"I chose COSIC because of its welcoming, inspiring, and stimulating research environment, as well as the outstanding expertise of the researchers who are part of this group."
#choosecosic
Reposted by Luca De Feo
I wrote a long post about my experiences so far in teaching applied cryptography at the American University of Beirut: www.linkedin.com/pulse/teachi...
Teaching Applied Cryptography in Beirut: Field Update
Two months ago, I began what colleagues politely called an "ambitious" undertaking: teaching Applied Cryptography to fifty students at the American University of Beirut while the country navigates war...
www.linkedin.com
October 28, 2025 at 8:03 AM
I wrote a long post about my experiences so far in teaching applied cryptography at the American University of Beirut: www.linkedin.com/pulse/teachi...
Reposted by Luca De Feo
TL;DR: See title 🥳
qt-Pegasis: Simpler and Faster Effective Class Group Actions (Pierrick Dartois, Jonathan Komada Eriksen, Riccardo Invernizzi, Frederik Vercauteren) ia.cr/2025/1859
October 8, 2025 at 8:17 AM
TL;DR: See title 🥳
Reposted by Luca De Feo
Pétition "non à #ChatControl" à signer sur le site de l'assemblée nationale. petitions.assemblee-nationale.fr/initiatives/...
Non à Chat Control, outil de surveillance de masse - Non à Chat Control, outil de surveillance de masse - Plateforme des pétitions de l’Assemblée nationale
Chers Représentants,
Je vous écris pour exprimer mes graves préoccupations concernant la proposition de législation Chat Control (Règlement CSAM) actuellement reconsidérée sous la Présidence danoise ...
petitions.assemblee-nationale.fr
October 9, 2025 at 9:22 AM
Pétition "non à #ChatControl" à signer sur le site de l'assemblée nationale. petitions.assemblee-nationale.fr/initiatives/...
Reposted by Luca De Feo
We will Make this deadline, very strongly, because we are WINNERS—but Europe and the Rest of the world will have to pay up BIGLY with the strongest and Most polished Best Paper awards! That is the least these low IQ individuals can do to Pay back what we Americans so richly deserve!
October 3, 2025 at 3:37 AM
We will Make this deadline, very strongly, because we are WINNERS—but Europe and the Rest of the world will have to pay up BIGLY with the strongest and Most polished Best Paper awards! That is the least these low IQ individuals can do to Pay back what we Americans so richly deserve!
Reposted by Luca De Feo
Other countries in Europe are LAUGHING at us, with their “Midnight Anywhere on Earth” conference submission Deadlines!!
They’re finishing their papers and taking off for the Weekend at 2pm Friday, while we Americans have to pull ALL-NIGHTERS!
Not on my (your favorite PC chair) watch—MAGTBAARHA!
They’re finishing their papers and taking off for the Weekend at 2pm Friday, while we Americans have to pull ALL-NIGHTERS!
Not on my (your favorite PC chair) watch—MAGTBAARHA!
October 3, 2025 at 12:14 AM
Other countries in Europe are LAUGHING at us, with their “Midnight Anywhere on Earth” conference submission Deadlines!!
They’re finishing their papers and taking off for the Weekend at 2pm Friday, while we Americans have to pull ALL-NIGHTERS!
Not on my (your favorite PC chair) watch—MAGTBAARHA!
They’re finishing their papers and taking off for the Weekend at 2pm Friday, while we Americans have to pull ALL-NIGHTERS!
Not on my (your favorite PC chair) watch—MAGTBAARHA!
Reposted by Luca De Feo
The call for papers for PKC 2026 is out: pkc.iacr.org/2026/callfor...
PKC 2026 call for papers
Public Key Cryptography
pkc.iacr.org
September 25, 2025 at 5:53 PM
The call for papers for PKC 2026 is out: pkc.iacr.org/2026/callfor...
Reposted by Luca De Feo
Hot on the heels of this week's invited talk, I'm pleased to announce that we will soon be following up with a fantastic upcoming talk by the inimitable @kennyog.bsky.social!
September 24, 2025 at 1:58 PM
Hot on the heels of this week's invited talk, I'm pleased to announce that we will soon be following up with a fantastic upcoming talk by the inimitable @kennyog.bsky.social!
Reposted by Luca De Feo
The Isogeny Club Season 7 starts today! At 5pm CEST, Bruno Sterner will talk about finding large smooth twins from short lattice vectors. More details at isogeny.club
September 23, 2025 at 7:23 AM
The Isogeny Club Season 7 starts today! At 5pm CEST, Bruno Sterner will talk about finding large smooth twins from short lattice vectors. More details at isogeny.club
And so it ends where it all started (well, some 50km upstream of that first picture). Thanks for following and see you at the next #IsogenyCycle!
#LID6
#LID6
September 21, 2025 at 4:53 PM
And so it ends where it all started (well, some 50km upstream of that first picture). Thanks for following and see you at the next #IsogenyCycle!
#LID6
#LID6
Reposted by Luca De Feo
BREAKING: The U.K., Canada and Australia officially recognize a Palestinian state, a significant shift away from alignment with the U.S.
U.K, Canada and Australia formally recognize a Palestinian state, breaking with the U.S.
The announcements Sunday marked a significant shift in foreign policy, with several other European nations and U.S. allies set to follow suit in the coming days.
nbcnews.to
September 21, 2025 at 1:26 PM
BREAKING: The U.K., Canada and Australia officially recognize a Palestinian state, a significant shift away from alignment with the U.S.
September 21, 2025 at 9:37 AM
September 20, 2025 at 9:27 PM
Last leg of the trip. The sun is back and it's even too hot!
Here's the Château de Lunéville this morning. Now finishing a siesta before crossing the Vosges.
#LID6 #IsogenyCycle
Here's the Château de Lunéville this morning. Now finishing a siesta before crossing the Vosges.
#LID6 #IsogenyCycle
September 20, 2025 at 12:19 PM
Last leg of the trip. The sun is back and it's even too hot!
Here's the Château de Lunéville this morning. Now finishing a siesta before crossing the Vosges.
#LID6 #IsogenyCycle
Here's the Château de Lunéville this morning. Now finishing a siesta before crossing the Vosges.
#LID6 #IsogenyCycle
Reposted by Luca De Feo
The impact of Alfred Menezes in cryptography is profound. Francisco RH and I are organizing an afternoon session in Latincrypt to celebrate Alfred's career:
menezesfest.info
If you're coming to Medellín, consider attending!
menezesfest.info
If you're coming to Medellín, consider attending!
MenezesFest 2025
MenezesFest brings together researchers, colleagues, and friends to celebrate the career and impact of Alfred Menezes.
menezesfest.info
September 18, 2025 at 6:17 AM
The impact of Alfred Menezes in cryptography is profound. Francisco RH and I are organizing an afternoon session in Latincrypt to celebrate Alfred's career:
menezesfest.info
If you're coming to Medellín, consider attending!
menezesfest.info
If you're coming to Medellín, consider attending!
Reposted by Luca De Feo
Announcing The Isogeny Problems!
A curated list of the seven foremost unsolved problems in isogeny-based cryptography. Solving one of these profound questions would mark a monumental advance, and as a resolver you'd get eternal honor and epic rewards!
Full list: isogeni.es/problems
A curated list of the seven foremost unsolved problems in isogeny-based cryptography. Solving one of these profound questions would mark a monumental advance, and as a resolver you'd get eternal honor and epic rewards!
Full list: isogeni.es/problems
The Isogeny Problems
isogeni.es
September 15, 2025 at 7:43 AM
Announcing The Isogeny Problems!
A curated list of the seven foremost unsolved problems in isogeny-based cryptography. Solving one of these profound questions would mark a monumental advance, and as a resolver you'd get eternal honor and epic rewards!
Full list: isogeni.es/problems
A curated list of the seven foremost unsolved problems in isogeny-based cryptography. Solving one of these profound questions would mark a monumental advance, and as a resolver you'd get eternal honor and epic rewards!
Full list: isogeni.es/problems