论文部分内容阅读
本文提出的密码同步是伪随机的。和随机同步比较,它不仅基本上克服了随机同步对传输信道误码较为敏感的弊病,而且还将进一步提高随机同步的密码体制的保密度。本文首先讨论了随机同步,指出了这种同步存在的问题。接着提出了伪随机同步,阐述了它的工作原理、性能和提高这种同步的密码体制的保密度的一种方法。最后探讨了假同步和虚同步问题及相应的对付措施。
The proposed password synchronization is pseudo-random. Compared with random synchronization, it not only basically overcomes the shortcoming that random synchronization is more sensitive to transmission channel error, but also further improves the security of random synchronization cryptosystem. This paper first discusses the stochastic synchronization, pointing out the problem of synchronization. Then, we propose a pseudo-random synchronization, and explain its working principle, performance and a method to improve the security of this synchronized cryptosystem. Finally, the issue of false synchronization and virtual synchronization and corresponding countermeasures are discussed.