id: 06091581
dt: j
an: 06091581
au: Liu, Yang; Li, Yonghua; Wang, Liyan
ti: Chaotic dynamical systems with changeable-parameter and stream cipher
    systems.
so: J. Liaoning Norm. Univ., Nat. Sci. 34, No. 4, 461-466 (2011).
py: 2011
pu: Liaoning Normal University, Dalian
la: ZH
cc: 
ut: chaotic dynamical systems; stream cipher; invariant measure; correlation
    function
ci: 
li: 
ab: Summary: In this paper, we firstly study the statistical properties of a
    chaotic dynamical system and obtain a new chaotic dynamical system
    which is formed after translation transform and the new statistical
    properties of the new chaotic dynamical system are obtained. The two
    dynamical systems have the same invariant measure and mean value, and
    the conclusion of Lebesgue measure is traversing. We further give the
    formula of the correlation function of the new chaotic dynamical system
    and derive the encryption and decryption arithmetic of the stream
    cipher in the chaotic dynamical systems with changeable-parameter.
    After the simulation experiment and the safety analysis to the
    algorithm, the results show that the algorithm has good effect to the
    encryption, and the relationship among the key, ciphertext and
    plaintext is sensitive and the correlation degree between ciphertext
    and plaintext is very small. It can availably resist statistical
    analysis and prevent the disclosure of the key and the plaintext
    information from the ciphertext. This algorithm has a larger secret
    space and uniform distributing ciphertext which provides a higher
    security of the system.
rv: