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Linear piecewise symmetric encryption encoding and decoding method

A symmetric encryption and segmented encryption technology, which is applied in the field of data transmission and communication, can solve problems such as poor security and low difficulty in cracking

Active Publication Date: 2020-06-23
湖南瑞利德信息科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above situation, the purpose of the present invention is to provide a linear segmented symmetric encryption encoding and decoding method to solve the problems of low difficulty in cracking and poor security in the prior art

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  • Linear piecewise symmetric encryption encoding and decoding method
  • Linear piecewise symmetric encryption encoding and decoding method
  • Linear piecewise symmetric encryption encoding and decoding method

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Embodiment Construction

[0038] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0040] Before t...

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Abstract

The invention provides a linear piecewise symmetric encryption coding and decoding method, which comprises the following steps of: segmenting any binary sequence by taking 1 bit as a unit, and implanting a weight coefficient (symmetric key) into a password (or binary information corresponding to the password) set by a user at the first section as a parameter to carry out weighted probability modelcoding. Starting from the second segment, implanting the last segment of uncoded binary system end s (s > 0) bits into the weight coefficient, and performing weighted probability model coding on thesecond segment, and so on. It is proved that when l is long enough, any bit error of the weight coefficient or any bit error of the coded ciphertext will cause that the binary sequence cannot be decoded successfully. Compared with the prior art, the method has the advantages that segmented encryption is adopted, different secret keys are adopted for encoding in all the segments, the cracking difficulty is higher, safety is higher, and data can be encrypted in a streaming mode in a segmented and secret-key-divided mode.

Description

technical field [0001] The invention relates to the technical field of data transmission and communication, in particular to a linear segmented symmetric encryption encoding and decoding method. Background technique [0002] With the rapid development of data communication technology, the coding and decoding technology to ensure the security of data communication has also been developed rapidly. The symmetric encryption algorithm is an earlier encryption algorithm with mature technology. [0003] In the symmetric encryption algorithm, the data sender processes the plaintext (original data) and the encryption key together with a special encryption algorithm, turning it into complex encrypted ciphertext and sending it out. After the recipient receives the ciphertext, if he wants to interpret the original text, he needs to use the encrypted key and the inverse algorithm of the same algorithm to decrypt the ciphertext to restore it to readable plaintext. In the symmetric encryp...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L63/0435H04L63/0464Y02D30/50
Inventor 王杰林
Owner 湖南瑞利德信息科技有限公司
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