Cryptanalysis of a family of self-synchronizing chaotic stream ciphers
نویسندگان
چکیده
منابع مشابه
New Directions in Cryptanalysis of Self-Synchronizing Stream Ciphers
In cryptology we commonly face the problem of finding an unknown key K from the output of an easily computable keyed function F (C,K) where the attacker has the power to choose the public variable C. In this work we focus on self-synchronizing stream ciphers. First we show how to model these primitives in the above-mentioned general problem by relating appropriate functions F to the underlying ...
متن کاملNon-Linearity and Security of Self Synchronizing Stream Ciphers
Several proposed chaos based ciphers exploit the ergodic property of chaotic orbits. As chaotic systems are unstable and have sensitive dependence on initial conditions, the main difficulty for the receiver is to reproduce the chaotic signal that has been generated by the sender in order to correctly decrypt the message. This is performed by a self synchronizing device. In discrete cryptography...
متن کاملLinear Cryptanalysis of the TSC Family of Stream Ciphers
In this paper, we introduce a new cryptanalysis method for stream ciphers based on T-functions and apply it to the TSC family which was proposed by Hong et al.. Our attack are based on linear approximations of the algorithms (in particular of the T-function). Hence, it is related to correlation attack, a popular technique to break stream ciphers with a linear update, like those using LFSR’s. We...
متن کاملCryptanalysis of Selected Stream Ciphers
T he aim of this dissertation is to show some cryptanalytical results on a selection of stream ciphers. We have grouped theory and results into three main parts. The first part focuses on the FCSR-based constructions X-FCSR and F-FCSRH v3. For the X-FCSR family of stream ciphers we perform a severe state recovery attack. This attack works for both X-FCSR-128 and X-FCSR-256. We then develop a ge...
متن کاملCryptanalysis of the FLIP Family of Stream Ciphers
At Eurocrypt 2016, Méaux et al. proposed FLIP, a new family of stream ciphers intended for use in Fully Homomorphic Encryption systems. Unlike its competitors which either have a low initial noise that grows at each successive encryption, or a high constant noise, the FLIP family of ciphers achieves a low constant noise thanks to a new construction called filter permutator. In this paper, we pr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Communications in Nonlinear Science and Numerical Simulation
سال: 2011
ISSN: 1007-5704
DOI: 10.1016/j.cnsns.2010.04.031