随机生成判断条件，生成5级线性反馈移位寄存器，并输出五级的序列-Randomly generated to determine the conditions to generate five linear feedback shift register, and outputs a sequence of five

序列密码--线性反馈移位寄存器--是密码学的基础，密码编程的前部分在这-Cipher- a linear feedback shift register- is based on cryptography, passwords in the first part of programming! !