Application of SC Projective Synchronization Method in Secure Communication

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2016, Vol. 33 ›› Issue (1): 117-126.

Application of SC Projective Synchronization Method in Secure Communication

Department of Engineering Mechanics, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2014-11-21 Revised:2015-04-27 Online:2016-01-25 Published:2016-01-25

Abstract

Abstract: A method of projective synchronization based on stability criterion of linear systems is introduced and a technical scheme of chaotic masking for secure communication is proposed. A nonlinear drive vector function of special chaotic state variable is constructed with scaling factor α for chaotic synchronization by separating linear and nonlinear terms properly. Transmission information is injected into one element of state vector as carrier signal. Complexity of masking information and decoding difficulty is increased. Lorenz attractor and hyper-chaotic Rössler attractor are used as an example to simulate sinusoidal information. Amplitude and frequency of signal can be chosen in a wide range. Added scale factor α makes decryption process more complex, thus improving security of communication. The method is proved effective for secure communication.

Key words: secure communication, chaotic-masking, projective synchronization, Jacobian matrix

CLC Number:

O322
TN918

QIAN Hui, YU Hongjie. Application of SC Projective Synchronization Method in Secure Communication[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2016, 33(1): 117-126.

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