An enhanced chaotic communication scheme based on cat map

作者：Zhu Zhi Liang; Song Jing Ping^*; Cui Kun; Yu Hai

来源：Journal of Northeastern University, 2010, 31(9): 1242-1245.

• Cat map
• Chaotic communications
• Chaotic synchronization
• Power analysis
• Return map

An enhanced scheme based on cat map was proposed to solve the security problem in the chaotic communication with synchronized chaos. For the existing chaotic communication scheme, the chaotic signal can be broken by return map and power analysis even if the parameters of a chaotic system are unknown. In the proposed scheme, the cat map is used at the sender to disorder the chaotic sequence and the disordered one is used as the carrier in the secure communication. While at the receiver, the original chaotic sequence is recovered to implement the chaotic synchronization via inverse transformation for demodulation. It is found that this scheme is secure against the two attack methods, i.e., return map and power analysis.

• 出版日期2010
• 单位东北大学