Peter Kutas
@kutasp
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RT @matthew_d_green: I wrote a bit about X’s new encrypted DMs and the Juicebox protocol.
blog.cryptographyengineering.com
Update 6/10: Based on a short conversation with an engineering lead at X, some of the devices used at X are claimed to be using HSMs. See more further below. Matthew Garrett has a nice post about T…
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RT @Lhree: [New] PEGASIS: Practical Effective Class Group Action using 4-Dimensional Isogenies (Pierrick Dartois and Jonathan Komada Erikse….
eprint.iacr.org
In this paper, we present the first practical algorithm to compute an effective group action of the class group of any imaginary quadratic order $\mathcal{O}$ on a set of supersingular elliptic...
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We are organizing the 2025 edition of the Central European Crypology conference (CECC 2025) in Budapest, looking forward to you submissions (you only need to submit an extended abstract). Every info on the webpage:
cecc2025.inf.elte.hu
Central European Conference on Cryptology 2025
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RT @Lhree: [New] PRISM: Simple And Compact Identification and Signatures From Large Prime Degree Isogenies (Andrea Basso and Giacomo Borin….
eprint.iacr.org
The problem of computing an isogeny of large prime degree from a supersingular elliptic curve of unknown endomorphism ring is assumed to be hard both for classical as well as quantum computers. In...
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RT @Istvan_A_Seres: Introducing new crypto assumptions is always tricky. Join us to learn about the rough order assumption from @asanso!. T….
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RT @huckbennett: A cool new lattice visualization tool from my colleague Kate Stange: She also has a bunch of othe….
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RT @JSEllenberg: New preprint up! "PatternBoost: Constructions in Mathematics with a Little Help from AI," with F. Charton, A.Z. Wagner, a….
arxiv.org
We introduce PatternBoost, a flexible method for finding interesting constructions in mathematics. Our algorithm alternates between two phases. In the first ``local'' phase, a classical search...
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RT @Lhree: [Revised] Verifiable random function from the Deuring correspondence and higher dimensional isogenies (Antonin Leroux) https://….
eprint.iacr.org
In this paper, we introduce $\mathsf{DeuringVUF}$, a new Verifiable Unpredictable Function (VUF) protocol based on isogenies between supersingular curves. The most interesting application of this VUF...
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RT @Lhree: [New] Efficient theta-based algorithms for computing $(\ell, \ell)$-isogenies on Kummer surfaces for arbitrary odd $\ell$ (Ryo Y….
eprint.iacr.org
Isogeny-based cryptography is one of the candidates for post-quantum cryptography. Recently, many isogeny-based cryptosystems using isogenies between Kummer surfaces were proposed. Most of those...
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RT @asanso: Dear academics and non-academics, I’d love to give a modest talk called "Three Little Stories on 3-Torsion"! 🎉 I'll cover insig….
eprint.iacr.org
This paper introduces an algorithm to efficiently break the Decisional Diffie-Hellman (DDH) assumption in totally non-maximal imaginary quadratic orders, specifically when $\Delta_1 = 3$, and $f$ is...
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RT @Lhree: [New] Erebor and Durian: Full Anonymous Ring Signatures from Quaternions and Isogenies (Giacomo Borin and Yi-Fu Lai and Antonin….
eprint.iacr.org
We construct two efficient post-quantum ring signatures with anonymity against full key exposure from isogenies, addressing limitations of existing isogeny-based ring signatures. First, we present an...
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I think in cryptography you are officially famous if you are remembered by only one letter (RSA, BLS, GPV, GHS, MOV, KLPT etc.) :).
You are officially a famous mathematician when you are remembered by only one name: Gauss, Noether, Ramanujan, Turing, Hilbert, Erdős, Mirzakhani, . .
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"Pretend that you're Hercule Poirot: Examine all clues,.and deduce the truth by order and method." error message by Overleaf . .
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