A Linear Segmented Symmetric Encryption and Decoding Method

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

Active Publication Date: 2022-05-17
湖南瑞利德信息科技有限公司
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  • Abstract
  • Description
  • Claims
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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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  • A Linear Segmented Symmetric Encryption and Decoding Method
  • A Linear Segmented Symmetric Encryption and Decoding Method
  • A Linear Segmented Symmetric Encryption 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 present invention provides a linear segmented symmetric encryption, encoding and decoding method. In the method, any binary sequence is segmented in units of l bits, and the password (or binary information corresponding to the password) set by the user is used for the first segment to be implanted into the right Coefficients (symmetric keys) are used as parameters for weighted probabilistic model encoding. Starting from the second segment, the uncoded binary end s (s>0) bits of the previous segment are implanted into the weight coefficients and the second segment is encoded with a weighted probability model, and so on. It has been proved that when l is long enough, any bit error in the weight coefficient or any bit error in the encoded ciphertext will cause the binary sequence to fail to be successfully decoded. Therefore, if the correct s bits at the end of the first paragraph cannot be obtained, the second paragraph cannot be decoded correctly. Compared with the prior art, the present invention uses segmented encryption, and each segment is encoded with a different key, which is difficult to crack. Larger, more secure, and segmented key-encrypted data that can be streamed.

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 Patents(China)
IPC IPC(8): H04L9/40
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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