Sequence cipher generation system based on Logistic chaotic mapping transfer 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, good scalability, and clear interfaces
Active Publication Date: 2015-09-30
宋煜
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[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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[0044] Embodiment 1: Combining figure 1 Describe the present embodiment, the sequence cipher generation system based on the Logistic chaotic map transfer orbit judgment described in the present 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 an initial seed for constructing a sequence cipher by enumerating different chaotic initial values in the range of [0,1];
[0047] Deterministic system, input the initial seed, and generate the binary state sequence of the deterministic chaotic system by quantizing the orbit and iteratively under the given parameters;
[0048] The deterministic system is a linear system that traverses and quantifies the values that cannot be reached by the Logistic iterative operation and the maximal transfer orbits starting from these values;
[0049] Indefinite chaotic system, input...
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The invention provides a sequence cipher generation system based on Logistic chaotic mapping transfer orbit judgment, belongs to the technical field of network communication and information security, and aims to solve the problem of a local periodic phenomenon of conventional generated chaotic sequence ciphers. The system comprises a cipher key seed generator, a deterministic system, an uncertain chaotic system and a cipher key generator, wherein the cipher key seed generator is used for enumerating different initial values of chaos in a range of [0, 1] to produce initial seeds for construction of a sequence cipher; the deterministic system inputs the initial seeds and generates a binary-state sequence of a deterministic chaos system through track quantization and iteration under given parameters; the uncertain chaotic system inputs the initial seeds and generates a binary-state sequence of an uncertain chaos system through value quantization and iteration under given parameters; the cipher key generator is used for performing xor operation on the binary-state sequence of the deterministic chaos system and the binary-state sequence of the uncertain chaos system to generate a standard binary sequence as the sequence cipher to be output. The system is used for generating the chaos sequence cipher, and when a 64-1,024-bit fixed-point multiplying circuit is used, the output sequence period at least can reach 262-21022.
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 the information security of communication systems, 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, the design and research of key sequence generators have been paid attention to, 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...
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Inventor 宋煜郑艳斌
Owner 宋煜