A V
@diagprov.ch
Reposted by A V
Today I have a more serious topic than usual, please consider reposting for reach:
My wife and I are urgently looking for a specialist in neuropediatrics or a similar field for our autistic child with a diagnosed, but not further specified, movement disorder [1/4]
My wife and I are urgently looking for a specialist in neuropediatrics or a similar field for our autistic child with a diagnosed, but not further specified, movement disorder [1/4]
August 19, 2025 at 8:34 AM
Today I have a more serious topic than usual, please consider reposting for reach:
My wife and I are urgently looking for a specialist in neuropediatrics or a similar field for our autistic child with a diagnosed, but not further specified, movement disorder [1/4]
My wife and I are urgently looking for a specialist in neuropediatrics or a similar field for our autistic child with a diagnosed, but not further specified, movement disorder [1/4]
Reposted by A V
Solid, SOLID, side-channel work by Sahan Sanjaya, Aruna Jayasena & Prabhat Mishra:
arxiv.org/pdf/2507.22306
arxiv.org/pdf/2507.22306
August 12, 2025 at 1:48 PM
Solid, SOLID, side-channel work by Sahan Sanjaya, Aruna Jayasena & Prabhat Mishra:
arxiv.org/pdf/2507.22306
arxiv.org/pdf/2507.22306
Reposted by A V
Reposted by A V
For anyone interested in learning more about Indistinguishability Obfuscation (iO) I highly recommend watching this talk by Amit Sahai: mediaspace.illinois.edu/media/t/1_ur...
I scoured the internet for a good introduction to the topic and this is the best talk so far IMHO.
I scoured the internet for a good introduction to the topic and this is the best talk so far IMHO.
DLS - Amit Sahai, "The Mathematics of Hiding Secrets in Software"
Abstract:At least since the initial public proposal of public-key cryptography based on computational hardness conjectures (Diffie and Hellman, 1976), cryptographers have contemplated the possibility ...
mediaspace.illinois.edu
June 25, 2025 at 6:40 AM
For anyone interested in learning more about Indistinguishability Obfuscation (iO) I highly recommend watching this talk by Amit Sahai: mediaspace.illinois.edu/media/t/1_ur...
I scoured the internet for a good introduction to the topic and this is the best talk so far IMHO.
I scoured the internet for a good introduction to the topic and this is the best talk so far IMHO.
Reposted by A V
Reposted by A V
… and another RCE in both Fortinet¹ and Ivanti² products.
Might as well run MS-DOS with Trumpet TCP/IP.
__
¹ thehackernews.com/2025/05/fort...
² www.bleepingcomputer.com/news/securit...
Might as well run MS-DOS with Trumpet TCP/IP.
__
¹ thehackernews.com/2025/05/fort...
² www.bleepingcomputer.com/news/securit...
May 14, 2025 at 7:27 AM
… and another RCE in both Fortinet¹ and Ivanti² products.
Might as well run MS-DOS with Trumpet TCP/IP.
__
¹ thehackernews.com/2025/05/fort...
² www.bleepingcomputer.com/news/securit...
Might as well run MS-DOS with Trumpet TCP/IP.
__
¹ thehackernews.com/2025/05/fort...
² www.bleepingcomputer.com/news/securit...
Reposted by A V
After incorporating the many speedups from tches.iacr.org/index.php/TC..., RELIC is now faster than blst* for pairing computation and G1/G2/GT exponentiation in BLS12-381.
All your speed records are belong to us! \o/
(*) Benchmarked through blstrs.
All your speed records are belong to us! \o/
(*) Benchmarked through blstrs.
Efficient Algorithms for Large Prime Characteristic Fields and Their Application to Bilinear Pairings
| IACR Transactions on Cryptographic Hardware and Embedded Systems
tches.iacr.org
April 30, 2025 at 10:11 PM
After incorporating the many speedups from tches.iacr.org/index.php/TC..., RELIC is now faster than blst* for pairing computation and G1/G2/GT exponentiation in BLS12-381.
All your speed records are belong to us! \o/
(*) Benchmarked through blstrs.
All your speed records are belong to us! \o/
(*) Benchmarked through blstrs.
Reposted by A V
A Dilithium-like Multisignature in Fully Split Ring and Quantum Random Oracle Model (Shimin Pan, Tsz Hon Yuen, Siu-Ming Yiu) ia.cr/2025/671
![Abstract. Multisignature schemes are crucial for secure operations in digital wallets and escrow services within smart contract platforms, particularly in the emerging post-quantum era. Existing post-quantum multisignature constructions either do not address the stringent requirements of the Quantum Random Oracle Model (QROM) or fail to achieve practical efficiency due to suboptimal parameter choices.
In this paper, we present a novel Dilithium-based multisignature scheme designed to be secure in the QROM and optimized for practical use. Our scheme operates over the polynomial ring ℤ_(q)[X]/(x^(n)+1) with q ≡ 1 (mod 2n), enabling full splitting of the ring and allowing for efficient polynomial arithmetic via the Number Theoretic Transform (NTT). This structure not only ensures post-quantum security but also bridges the gap between theoretical constructs and real-world implementation needs.
We further propose a new hardness assumption, termed ν-SelfTargetMSIS, extending SelfTargetMSIS (Eurocrypt 2018) to accommodate multiple challenge targets. We prove its security in the QROM and leverage it to construct a secure and efficient multisignature scheme. Our approach avoids the limitations of previous techniques, reduces security loss in the reduction, and results in a more compact and practical scheme suitable for deployment in post-quantum cryptographic systems.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:fwa55bujvdrwlwlwgqmmxmuf/bafkreid3q3gbwoxow76r4ulruqzdpd6yl5buespus23aee2vbql2apfinm@jpeg)
April 15, 2025 at 12:25 PM
A Dilithium-like Multisignature in Fully Split Ring and Quantum Random Oracle Model (Shimin Pan, Tsz Hon Yuen, Siu-Ming Yiu) ia.cr/2025/671
Reposted by A V
New work: we explain cubical arithmetic in simple terms to show you how easy it is to compute pairings. Essentially, you only need to know the Montgomery ladder!
As a bonus, pairings from cubical arithmetic are faster than those from Miller's loop for applications in isogeny-based cryptography.
As a bonus, pairings from cubical arithmetic are faster than those from Miller's loop for applications in isogeny-based cryptography.
Simpler and Faster Pairings from the Montgomery Ladder (Giacomo Pope, Krijn Reijnders, Damien Robert, Alessandro Sferlazza, Benjamin Smith) ia.cr/2025/672
April 15, 2025 at 12:34 PM
New work: we explain cubical arithmetic in simple terms to show you how easy it is to compute pairings. Essentially, you only need to know the Montgomery ladder!
As a bonus, pairings from cubical arithmetic are faster than those from Miller's loop for applications in isogeny-based cryptography.
As a bonus, pairings from cubical arithmetic are faster than those from Miller's loop for applications in isogeny-based cryptography.
Reposted by A V
Simpler and Faster Pairings from the Montgomery Ladder (Giacomo Pope, Krijn Reijnders, Damien Robert, Alessandro Sferlazza, Benjamin Smith) ia.cr/2025/672
April 15, 2025 at 12:25 PM
Simpler and Faster Pairings from the Montgomery Ladder (Giacomo Pope, Krijn Reijnders, Damien Robert, Alessandro Sferlazza, Benjamin Smith) ia.cr/2025/672
Jeu sedumondel sche Blueksy sa che jeu discourel romontsch ?
April 15, 2025 at 11:18 AM
Jeu sedumondel sche Blueksy sa che jeu discourel romontsch ?
Favorable pour la première maison pas pour des résidences secondaires non.
Cinquante-deux pour cent des Suisses se disent favorables à la suppression de la valeur locative
➡️ https://l.letemps.ch/AHZ
➡️ https://l.letemps.ch/AHZ
April 15, 2025 at 11:15 AM
Favorable pour la première maison pas pour des résidences secondaires non.
Reposted by A V
Et ils ont décidé que, pour le drapeau vaudois, le vert pour le verre et le blanc pour le blanc 🤪
[COMMÉMORATION] C’est le 14 avril 1803 que le Grand Conseil vaudois, à la création de l’Acte de Médiation, s’est réuni pour la première fois et que le canton de Vaud entre officiellement dans la Confédération suisse.
🟩⬜ En savoir plus : www.vd.ch/actualites...
🟩⬜ En savoir plus : www.vd.ch/actualites...
April 14, 2025 at 7:02 AM
Et ils ont décidé que, pour le drapeau vaudois, le vert pour le verre et le blanc pour le blanc 🤪
Reposted by A V
We need COBOL Defence League.
April 6, 2025 at 1:00 PM
We need COBOL Defence League.
Pas du tout une surprise vu que les loyers abordent les très hauts niveaux.
Plusieurs milliers de personnes dans la rue à Zurich pour des logements abordables
➡️ https://l.letemps.ch/C50
➡️ https://l.letemps.ch/C50
April 5, 2025 at 7:01 PM
Pas du tout une surprise vu que les loyers abordent les très hauts niveaux.
Reposted by A V
A simple PostScript and PDF polyglot file gist.github.com/nst/0decdc1c...
April 4, 2025 at 9:32 AM
A simple PostScript and PDF polyglot file gist.github.com/nst/0decdc1c...
Could not agree more. The point is not that they used signal. The point is that they bypassed all the other security considerations and protections.
I don’t think foreign adversaries can hack Signal either, but they can definitely hack normal consumer devices that run Signal, and social engineer their way into Signal groups
Bondi says she thinks Signal is a safe way to communicate and foreign adversaries can’t hack it (the US intelligence community begs to differ … )
March 28, 2025 at 9:43 AM
Could not agree more. The point is not that they used signal. The point is that they bypassed all the other security considerations and protections.
Reposted by A V
This PostScript program will display the time as a clock gist.github.com/nst/382caefb...
March 24, 2025 at 11:28 AM
This PostScript program will display the time as a clock gist.github.com/nst/382caefb...
Reposted by A V
I wrote up some notes on the new #Kubernetes CVE in `gitRepo` volumes. it's only relevant in quite specific circumstances, but I do think it's worth cluster operators blocking the use of `gitRepo` volumes unless they need them, as there have been 2 CVEs now.
raesene.github.io/blog/2025/03...
raesene.github.io/blog/2025/03...
CVE-2025-1767 - Another gitrepo issue
raesene.github.io
March 14, 2025 at 10:41 AM
I wrote up some notes on the new #Kubernetes CVE in `gitRepo` volumes. it's only relevant in quite specific circumstances, but I do think it's worth cluster operators blocking the use of `gitRepo` volumes unless they need them, as there have been 2 CVEs now.
raesene.github.io/blog/2025/03...
raesene.github.io/blog/2025/03...
Reposted by A V
Reposted by A V
Yesterday was the watershed after which non-proliferation has just become a utopia. You can almost feel the number of countries thinking “we need nukes” from Taiwan to the EU via South Korea.
Suddenly finding a deep storage for EU Pu stocks is no longer a necessity, my bets are on Sweden first.
Suddenly finding a deep storage for EU Pu stocks is no longer a necessity, my bets are on Sweden first.
March 1, 2025 at 7:28 AM
Yesterday was the watershed after which non-proliferation has just become a utopia. You can almost feel the number of countries thinking “we need nukes” from Taiwan to the EU via South Korea.
Suddenly finding a deep storage for EU Pu stocks is no longer a necessity, my bets are on Sweden first.
Suddenly finding a deep storage for EU Pu stocks is no longer a necessity, my bets are on Sweden first.
Reposted by A V
I'm happy to share some updates on the FAEST round 2 digital signature algorithm:
- we have achieved substantially smaller signatures
- at the same time, the new sign/verify algorithms achieve more competitive performance
- we have achieved substantially smaller signatures
- at the same time, the new sign/verify algorithms achieve more competitive performance
February 25, 2025 at 9:49 AM
I'm happy to share some updates on the FAEST round 2 digital signature algorithm:
- we have achieved substantially smaller signatures
- at the same time, the new sign/verify algorithms achieve more competitive performance
- we have achieved substantially smaller signatures
- at the same time, the new sign/verify algorithms achieve more competitive performance