变结构/变初值准混沌滚动密钥产生器  

Varying Structure/Varying lnitial Value Quasi chaotic Running Key Generator

作　　者：陈志清[1] 龙德浩[1] 

机构地区：[1]四川联合大学

出　　处：《电讯技术》1997年第6期48-55,共8页Telecommunication Engineering

摘　　要：本文首先指出传统的滚动密钥产生器，在滚动密钥生成的过程中，状态转移函数和输出函数的结构初值及其状态初值都是固定不变的，因此，利用在信道中截取足够长的数据，原则上，总是可以破译的。鉴于此，我们在数字或准混沌意义上，采用综合算法提出了变结构／变初值准混沌滚动密钥产生器，使之在滚动密钥的生成过程中，状态转移函数和输出函数每一个字节都更新一次结构初值和状态初值，且永不重复、不可预测。在未建立综合数学之前，我们提出的这类又变结构又变初值的滚动密钥产生器，原则上。:In this paper,it is pointed at the first that the structure and state initial values of state transition function and output function of the conventional running key generator are fixed,consequently it can been deciphered by use of enough datum are received over channel.Owing to the reasons stated above,we propose varying structure/varying initial values running key generator by making of hybrid operation sign,in the sense of digitai or quasi chaos,making the structure initial values and the state initiail values of the state transition function and the output function renew once a byte;the state initial values do renovate a time as the state initial value renewing conditions hold,while the running key generate.The varying structure/varying initial value running key generator can not been deciphered by use of enough datum received over channel before the hybrid mathematics is constituted.

关 键 词：密钥生产器 变结构/变初值 保密通信 

分 类 号：TN918[电子电信—通信与信息系统]