Noise-resisting ciphering based on a chaotic multi-stream pseudo-random number generator

René Lozi (1) , Estelle Cherrier (2)

1 JAD - Laboratoire Jean Alexandre Dieudonné
2 Equipe SAFE - Laboratoire GREYC - UMR6072

We propose a novel noise-resisting ciphering method resorting to a chaotic multi-stream pseudorandom number generator (denoted Cms-PRNG). This Cms-PRNG co-generates an arbitrarily large number of uncorrelated chaotic sequences. These cogenerated sequences are actually used in several steps of the ciphering process. Noisy transmission conditions are considered, with realistic assumptions. The efficiency of the proposed method for ciphering and deciphering is illustrated through numerical simulations based on a Cms-PRNG involving ten coupled chaotic sequences.

Mots clés: Noise-resisting ciphering; chaotic pseudo-random number

Domaines: Cryptographie et sécurité [cs.CR]; Systèmes dynamiques [math.DS]

René Lozi, Estelle Cherrier. Noise-resisting ciphering based on a chaotic multi-stream pseudo-random number generator. IEEE, 6th International Conference for Internet Technology and Secured Transactions, ICITST-2011, Dec 2011, Abu Dhabi, United Arab Emirates. pp.91-96. ⟨hal-00617051⟩