In chaotic cryptosysterns, using （very） high dimensional chaotic attractors for encrypting a given message maybe can improve the privacy of chaotic encoding. A kind of hyperchaotic systems are studied by using some ...In chaotic cryptosysterns, using （very） high dimensional chaotic attractors for encrypting a given message maybe can improve the privacy of chaotic encoding. A kind of hyperchaotic systems are studied by using some classical methods. The results show that for improving the security of the chaotic cryptosystems, besides the high dimension, the sub-Nyquist sampling interval （SI） is also necessary. Then, we verify this result using the methods of time series analysis.展开更多
基金This project was supported by National"985"Engineering of China .
文摘In chaotic cryptosysterns, using （very） high dimensional chaotic attractors for encrypting a given message maybe can improve the privacy of chaotic encoding. A kind of hyperchaotic systems are studied by using some classical methods. The results show that for improving the security of the chaotic cryptosystems, besides the high dimension, the sub-Nyquist sampling interval （SI） is also necessary. Then, we verify this result using the methods of time series analysis.
