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Sequence Cipher Generation System Based on Logistic Chaos Map Transition Orbit Judgment

A technology for transferring orbits and sequence ciphers, applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as the local periodic phenomenon of chaotic sequence ciphers, and achieve the effects of simple hardware implementation, fast generation speed, and clear interface

Active Publication Date: 2018-01-23
宋煜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is in order to solve the problem that the chaotic sequence cipher of existing generation appears local cycle phenomenon, the present invention provides a kind of sequence cipher generation system based on logistic chaotic map transfer track judgment

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  • Sequence Cipher Generation System Based on Logistic Chaos Map Transition Orbit Judgment
  • Sequence Cipher Generation System Based on Logistic Chaos Map Transition Orbit Judgment
  • Sequence Cipher Generation System Based on Logistic Chaos Map Transition Orbit Judgment

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specific Embodiment approach 1

[0044] Specific implementation mode one: combine figure 1 Describe this embodiment, the sequence code generation system based on the Logistic chaos map transfer trajectory judgment described in this embodiment,

[0045] The sequence cipher generation system includes a key seed generator, a deterministic system, an indeterminate chaotic system and a key generator;

[0046] The key seed generator is used to create initial seeds for constructing sequence ciphers by enumerating different chaotic initial values ​​in the range [0,1];

[0047] Deterministic system, input the initial seed, generate the binary state sequence of the definite chaotic system by quantizing the trajectory and iterating under the given parameters;

[0048] The deterministic system is a linear system that traverses and quantifies the values ​​that cannot be reached through Logistic iterative operations and the maximum transfer orbits starting from these values;

[0049] For an indeterminate chaotic system, ...

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Abstract

The invention discloses a sequence cipher generation system based on Logistic chaos map transition trajectory judgment, which belongs to the technical field of network communication and information security. In order to solve the problem of local periodicity in existing generated chaotic sequence ciphers. Described comprises: key seed generator, is used for by enumerating different chaotic initial value in [0,1] scope, is to construct initial seed for constructing sequence cipher; Deterministic system, input initial seed, by quantizing track and given Iteratively generates the binary state sequence of the deterministic chaotic system under parameters; for the indeterminate chaotic system, the initial seed is input, and the binary state sequence of the indeterminate chaotic system is generated through numerical quantization and iteration under given parameters; the key generator generates the binary state sequence of the deterministic system The binary state sequence and the binary state sequence of the indeterminate chaotic system are XORed, and a standard binary sequence is generated as a sequence cipher output. The invention is used for generating chaotic sequence ciphers, and when a 64-1024-bit fixed-point multiplication circuit is used, the output sequence period of the invention can reach at least 262 to 21022.

Description

technical field [0001] The invention belongs to the technical field of network communication and information security. Background technique [0002] With the rapid development of electronic technology and information technology, information security, especially communication system information security has attracted people's attention. In a digital, networked, and intelligent communication system, the integration of communication equipment requires a sequence cipher composed of a special key sequence generator to participate in the cryptographic core operation, with a series of highly nonlinear, infinite period, statistical A good key sequence guarantees the security of the communication system. [0003] Since the 1980s, attention has been paid to the design and research of key sequence generators, and researchers have designed a large number of random sequences with high complexity, power spectrum close to noise, and difficult to decipher. After the 1990s, people found th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/00
Inventor 宋煜郑艳斌
Owner 宋煜