138 citations · 204 across the 15 of their papers we have counts for
4 papers · 1 filter
Cryptanalysis of an Identity-Based Authenticated Key Exchange Protocol
Younes Hatri, Ayoub Otmani, Kenza Guenda
Authenticated Key Exchange (AKE) protocols represent an important cryptographic mechanism that enables several parties to communicate securely over an open network. Elashry, Mu and…
Polynomial-Time Key Recovery Attack on the Faure-Loidreau Scheme based on Gabidulin Codes
Philippe Gaborit, Ayoub Otmani, Hervé Talé Kalachi
Encryption schemes based on the rank metric lead to small public key sizes of order of few thousands bytes which represents a very attractive feature compared to Hamming metric-bas…
Algebraic Properties of Polar Codes From a New Polynomial Formalism
Magali Bardet, Vlad Dragoi, Ayoub Otmani +1
Polar codes form a very powerful family of codes with a low complexity decoding algorithm that attain many information theoretic limits in error correction and source coding. These…
Improved Cryptanalysis of Rank Metric Schemes Based on Gabidulin Codes
Ayoub Otmani, Hervé Talé Kalachi, Sélestin Ndjeya
We prove that any variant of the GPT cryptosystem which uses a right column scrambler over the extension field as advocated by the works of Gabidulin et al. with the goal to resist…