Chaotic encipher series generator

Abstract

The present invention relates to a chaos cipher sequence generator, including linear feedback shift register (LFSR) sequence with scramble limited accuracy to implement chaos system and cryptographic alogorithm. Its cipher system adopts output-group feedback basic working mode (OFM), feedback register R provides the input of group encryption algorithm E defined by key K, and the group legnth of grup algorithm of R in cipher iteration every time is 0-1 sequence of Nbbits, its initial bit Io has no need of privacy, but must be changed with message. Said invention chaos cipher sequence generator integrates the advantages of chaos technology, LFRS and Rijndael high intensity encryption algorithms, so that it can be extensively used in data encryption, privacy communication and information safety.

Description

technical field [0001] The invention belongs to the technical fields of data encryption, confidential communication and information security, and in particular relates to a Chaotic Cipher Sequence (CCS for short) generator used for data encryption, confidential communication and information security. Background technique [0002] With the rapid development of global informatization, a large number of various informatization systems built in my country have become the key infrastructure of the country, and many of their businesses need to be in line with international standards, such as communications, e-commerce, and financial networks. At the same time, in today's information openness, how to ensure the information security of our country's government, military, business and financial industries has become an important issue in our country's construction. Information security has become an urgent and critical issue that affects the overall situation an...

AI Technical Summary

Problems solved by technology

[0009] (3) Sensitive dependence on the initial value, a small change in the initial state will cause the orbital evolution of the system to separate exponentially

[0010] (4) There is a strange attractor, which comes from the infinite stretching and folding of the orbit. The strange attractor is a phenomenon that the orbital instability and the volume shrinkage of the dissipative system occur at the same time. It exists in a limited area and the space structure is very complex

[0011] (5) Long-term unpredictability. Because the system is sensitive to the initial value, the long-term behavior of the system is similar to Brownian motion. Only the method of probability theory can be used to describe the long-term behavior of the system, and the description of determinism cannot be carried out.

[0036] (7) have as high complexity as possible;

[0037] (8) The linear unpredictability of the sequence is sufficiently large

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