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Design, security proofs and cryptanalysis of cryptographic hash functions
This Thesis focuses on hash functions, which are used in numerous cryptographic mechanisms. We present various results, that belong to the fields of design and... -
Cryptanalysis of multivariate schemes
Multivariate Cryptography can be defined as public key cryptography based on the computational hardness of solving a system of polynomial equations in several... -
Observers-based synchronisation of chaotic systems and applications to the tr...
In this thesis, we develop synchronization methods of chaotic systems for information transmission applications. The first proposed method is based on adaptive unknown... -
Analysis of new cryptographic primitives for Diffie-Hellman schemes
In this thesis, we study several cryptographic primitives of use in Diffie-Hellman like protocols. We first study Diffie-Hellman protocols on commutative or... -
Meet-in-the-Middle Attacks on AES
This thesis is dedicated to the cryptanalysis of the AES (Advanced Encryption Standard) which is one of the most widely deployed block ciphers. We present a new... -
Side channel attacks: advanced experimentions on template attacks
In the 90's, the emergence of new cryptanalysis methods revolutionized the security of cryptographic devices. These attacks are based on power consumption analysis,... -
Algebraic cryptanalysis of HFE and Filter Generators
Colloque sur invitation. internationale. -
Algebraic cryptanalysis of hidden field equation (HFE) cryptosystems using Gr...
Colloque avec actes et comité de lecture. internationale.
