摘要
分析了一类数字混沌保密语音通信系统在回归映射攻击、相空间重构攻击、泄密攻击下的保密性能，实验和仿真表明基于数字混沌的保密语音通信系统比基于连续流混沌的保密语音通信系统有更强的保密性能．最后，提出了分时映射多刀开关及同时多映射复合的高维混沌等，以进一步提高保密性能．
Analysis on security of a secure speech communication system based on digital chaos is given, which is attacked through regression maps and phase space reconstructing and so on. Experimental and simu- lative results turn out the security of communication systems based on digital chaos is better than that based on continuous flow chaos. In the end, time-sharing maps and contemporary multi-maps mised and piecewise non- linear maps are presented to enhancing security.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2001年第3期287-292,共6页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助课题(No.69772041)
