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Transformation encryption algorithm based on generation of random bit sequence

A technology of sequence generation and encryption algorithm, applied to encryption device with shift register/memory and key distribution, to achieve the effect of facilitating promotion, saving use cost and improving confidentiality

Active Publication Date: 2021-06-01
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] After retrieval, Chinese Patent No. CN108270545A discloses an improved DES data encryption algorithm based on the mobile Internet. Most of the ciphertexts generated by this encryption method are fixed, which provides the possibility for some criminals to decipher the ciphertexts;

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  • Transformation encryption algorithm based on generation of random bit sequence
  • Transformation encryption algorithm based on generation of random bit sequence
  • Transformation encryption algorithm based on generation of random bit sequence

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Embodiment Construction

[0039]Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments.

[0040]In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "post", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship of the instructions such as "is based on the orientation or positional relationship shown in the drawings, which is merely description of the present invention and simplified description, rather than indicating or implying that the device or component must have a specific direction. Specific orientation constructs and operations are therefore not to be construed as limiting the invention.

[0041]ReferFigure 1-6 Based on the transformation encryption algorithm generated by a random ...

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Abstract

The invention discloses a transformation encryption algorithm generated based on a section of random bit sequence, and relates to the technical field of bit sequence generation, and the transformation encryption algorithm generated based on the section of random bit sequence comprises the following specific steps: 1, generating a random ciphertext; 2, encrypting a random 10-bit bit stream Y by a secret key digital part; 3, generating a header ciphertext; 4, generating a tail ciphertext; 5, generating a check code and a check ciphertext; 6, generating a true ciphertext; 7, generating a false ciphertext; 8, generating a judgment ciphertext; 9, generating a final ciphertext, wherein the random ciphertext in the step 1 is composed of two characters. According to the transformation encryption algorithm generated based on the random bit sequence, multiple encryption can be carried out, the confidentiality of the ciphertext can be improved, the cracking risk can be reduced, the security can be improved on the basis of a traditional method without too much overhead, the use cost can be saved, and popularization is convenient.

Description

Technical field[0001]The present invention relates to the field of specific sequence generation, and more particularly to a transform encryption algorithm generated based on a segment random bit sequence.Background technique[0002]According to the retrieval, China Patent No. CN108270545A discloses a modified DES data encryption algorithm based on mobile Internet, and the ciphertext generated by the encryption method is fixed, which provides some possibilities for some criminal decipherable cipings;[0003]In order to improve the security during the information transmission, increase encryption security. A method of changing a variable-form-type encryption is designed, and different ciphertexts are generated by the source key and a random bit sequence. When decrypt, the encryption key is decrypted, which is encrypted in the information transmission process.Inventive content[0004]It is an object of the present invention to solve the defects present in the prior art, and the transformatio...

Claims

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Application Information

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IPC IPC(8): H04L9/06H04L9/08
CPCH04L9/0625H04L9/0869H04L9/0861
Inventor 孙元斐孙玉花
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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