Filter by content type
Select one or more filters. This choice will reload the page to display the filtered results.
633 results
-
-
Seminar
-
Cryptography
Isogeny-based cryptography from superspecial genus-2 curves
Speaker : Wouter Castryck - KU Leuven
I will report on some first attempts to do isogeny-based cryptography in genus 2. More precisely, we will use isogeny graphs of superspecial principally polarized abelian surfaces over GF(p^2) for constructing variants of Charles, Goren and Lauter's hash function and of Jao and De Feo's SIDH key exchange protocol, both of which use supersingular elliptic curves over GF(p^2). This will be largely[…] -
-
-
Seminar
-
Cryptography
Key Reinstallation Attacks: Forcing Nonce Reuse in WPA2
Speaker : Mathy Vanhoef - KU-Leuven
We introduce key reinstallation attacks (KRACKs). These attacks abuse features of a protocol to reinstall an already in-use key, thereby resetting nonces and/or replay counters associated to this key. We show that our novel attack technique breaks several handshakes that are used in a WPA2-protected network.<br/> All protected Wi-Fi networks use the 4-way handshake to generate fresh session keys.[…] -
-
-
Seminar
-
Cryptography
Toutes les informations ici https://cca.inria.fr/
Speaker : Ilaria Chillotti, Ayoub Otmani, Ida Tucker et Brice Minaud - Séminaire C2
-
-
-
Seminar
-
Cryptography
Soutenance de thèse (exceptionnellement mercredi à 13h30 en salle Petri-Turing à l'IRISA): Algorithmes d'algèbre linéaire pour la cryptographie
Speaker : Claire Delaplace - Université Rennes 1
Dans cette thèse, nous discutons d’aspects algorithmiques de trois différents problèmes, en lien avec la cryptographie. La première partie est consacrée à l’algèbre linéaire creuse. Nous y présentons un nouvel algorithme de pivot de Gauss pour matrices creuses à coefficients exacts, ainsi qu’une nouvelle heuristique de selection de pivots, qui rend l’entière procédure particulièrement efficace[…] -
-
-
Seminar
-
Cryptography
Improved Veron Identification and Signature Schemes in the Rank Metric
Speaker : Florian Caullery - Darkmatter
Abstract—It is notably challenging to design an efficient and secure signature scheme based on error-correcting codes. An approach to build such signature schemes is to derive it from an identification protocol through the Fiat-Shamir transform.<br/> All such protocols based on codes must be run several rounds, since each run of the protocol allows a cheating probability of either 2/3 or 1/2. The[…] -
-
-
Seminar
-
Cryptography
Wave: A New Code-Based Signature Scheme
Speaker : Thomas Debris-alazard - inria
It is a long standing open problem to build an efficient and secure digital signature scheme based on the hardness of decoding a linear code which could compete with widespread schemes like DSA or RSA. The latter signature schemes are broken by a quantum computer with Shor’s algorithm. Code-based schemes could provide a valid quantum resistant replacement. We present here Wave the first « hash[…] -