⑴ 如何实现matlab 中基于混沌序列的文本加密。。。谢谢

如何实现matlab 中基于混沌抄序列的文本加密。。。谢谢
x(1)=0.1;
for i = 2 : 1000
x(i)=4*x(i-1)*(1-x(i-1));
end

L=1000;
NFFT = 1024;
Y = fft(x,NFFT)/L;
f = 1/2*linspace(0,1,NFFT/2+1);

plot(f,2*abs(Y(1:NFFT/2+1)))
title('功率谱')
xlabel('Frequency (Hz)')
ylabel('|Y(f)|')

百世岁月当代好 千古江山今朝新 万象更新

⑵ 用51单片机来实现语音混沌加密，求Logistic混沌密钥序列程序

这个范例你看看适不适版用权
http://arxiv.org/pdf/1112.5791.pdf

Visualizing the logistic map with a microcontroller
Juan D. Serna∗
School of Mathematical and Natural Sciences
University of Arkansas at Monticello, Monticello, AR 71656
Amitabh Joshi†
Department of Physics
Eastern Illinois University, Charleston, IL 61920
December 25, 2011