Topological study and Lyapunov exponent of a secure steganographic scheme

Jacques Bahi (1) , Nicolas Friot (1) , Christophe Guyeux (1)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

CIS2 is a steganographic scheme proposed in the information hiding literature, belonging into the small category of algorithms being both stego and topologically secure. Due to its stego-security, this scheme is able to face attacks that take place into the "watermark only attack" framework. Its topological security reinforce its capability to face attacks in other frameworks as "known message attack" or "known original attack", in the Simmons' prisoner problem. In this research work, the study of topological properties of C I S 2 is enlarged by describing this scheme as iterations over the real line, and investigating other security properties of topological nature as the Lyapunov exponent. Results show that this scheme is able to withdraw a malicious attacker in the "estimated original attack" context too.

Domaines: Calcul parallèle, distribué et partagé [cs.DC]; Cryptographie et sécurité [cs.CR]; Modélisation et simulation

Jacques Bahi, Nicolas Friot, Christophe Guyeux. Topological study and Lyapunov exponent of a secure steganographic scheme. 10th International Conference on Security and Cryptography (SECRYPT'2013), Jul 2013, Reykjavik, Iceland. pp.275--283. ⟨hal-01304656⟩