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Data fragmentation secure transmission method and device based on pseudo-random number

A pseudo-random number, secure transmission technology, applied in the field of information security, can solve the problem of data confidentiality is difficult to guarantee

Active Publication Date: 2020-10-30
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method and device for safe transmission of data fragmentation based on pseudo-random numbers, computer storage media and electronic equipment to solve data confidentiality in data communication Technical issues that are difficult to guarantee

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  • Data fragmentation secure transmission method and device based on pseudo-random number
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Embodiment Construction

[0035] Embodiments of the present invention provide a pseudo-random number-based secure data fragmentation transmission method and device, a computer storage medium, and electronic equipment to enhance data confidentiality during communication.

[0036] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is 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.

[0037] 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...

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PUM

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Abstract

The invention provides a data fragmentation secure transmission method and device based on a pseudo random number, a computer storage medium and electronic equipment. The method comprises the following steps that: a data sender and a data receiver negotiate a key and a random seed; the data sender groups and encrypts plaintext data to be sent according to the secret key to obtain a plurality of ciphertext groups, generates a unique corresponding random serial number for each ciphertext group according to the random seed, sorts the ciphertext groups according to a certain rule and sends the sorted ciphertext groups to the data receiver; and the data receiver receives the ciphertext groups, generates a random serial number list according to the random seeds, rearranges the plurality of ciphertext groups according to the random serial number list, and decrypts the plurality of ciphertext groups according to the key to obtain plaintext data. According to the method, the sequence of the ciphertext groups is randomly scattered before the data is sent, and because the correct sequence of the plaintext groups is unknown, an attacker cannot obtain correct data information even if the attacker cracks a secret key, so that the confidentiality of the data is enhanced.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a method and device for safely transmitting data fragmentation based on pseudo-random numbers. Background technique [0002] With the rapid development of the Internet and communication technology, the transmission of data information has become more and more convenient, and at the same time, the security of sensitive information has become more and more important. [0003] With the gradual improvement of computer performance, especially the emergence of quantum computers, the difficulty of cracking traditional block encryption algorithms has gradually decreased. It is difficult to guarantee the confidentiality of data simply by using block encryption algorithm to encrypt data. For the ciphertext packets sent sequentially, the attacker can obtain a large amount of ciphertext data by eavesdropping on the communication channel, and after cracking the key through brute...

Claims

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Application Information

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IPC IPC(8): H04L9/08
CPCH04L9/0869H04L9/0844
Inventor 洪超匡晓云杨祎巍陈霖张宇南黄开天
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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