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Secure data transmission method based on interleaved fragmentation

A data transmission method and data fragmentation technology, which are applied in the field of secure data transmission based on interleaving and fragmentation, can solve the problem of high transmission cost and high computational cost, and achieve the effects of less task load, guaranteed security, and low computational complexity.

Inactive Publication Date: 2019-07-05
BEIJING JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to improve the security of network data transmission and overcome the problems of high transmission cost and high calculation cost in the fragmentation transmission mechanism in the prior art, the present invention provides a secure data transmission technology based on interleaved fragmentation, introducing a data interleaving mechanism, and Multiple raw data are combined with certain calculation rules to generate data fragments, ensuring the security of data transmission while ensuring low computational complexity and low data transmission volume

Method used

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  • Secure data transmission method based on interleaved fragmentation
  • Secure data transmission method based on interleaved fragmentation
  • Secure data transmission method based on interleaved fragmentation

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Embodiment

[0033] This embodiment provides a data transmission method based on interleaving and fragmentation. In the data transmission method based on interleaving and fragmentation, the transmitting end maps the transmitted original data into several fragmented data and sends them to the receiving end through an interleaving matrix. The receiving end decodes the received sliced ​​data into the original data by using the interleaving matrix.

[0034] Preferably, the interleaving matrix is ​​generated by the sending end, and the ciphertext of the interleaving matrix is ​​transmitted to the receiving end in an encrypted manner; the receiving end obtains the plaintext of the interleaving matrix through decryption.

[0035] The sending end and receiving end described in this embodiment are physical devices in network communication devices, including but not limited to servers, Internet of Things devices, and handheld terminals.

[0036] figure 1 Shown is a schematic diagram of the principl...

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Abstract

The invention provides a secure data transmission method based on interleaved fragmentation, which is used for solving the problem of high transmission cost and calculation cost in a fragmentation transmission mechanism. In the data transmission method, a sending end maps transmitted original data into a plurality of pieces of fragmented data through an interleaving matrix and sends the fragmenteddata to a receiving end, and the receiving end decodes the received pieces of fragmented data through the interleaving matrix and recovers the decoded pieces of fragmented data into the original data. The interleaving matrix is dynamically and randomly generated, and an attacker cannot know or cannot crack the interleaving matrix; meanwhile, the data are transmitted in a fragmentation mode, and the data cannot be recovered on the premise that all the data fragments cannot be obtained, so that the safety of data transmission is further guaranteed. Meanwhile, only encryption and decryption processing needs to be carried out on the interleaving matrix, the interleaving and deinterleaving process is low in calculation complexity, the task load is small, and the method is particularly suitablefor large-scale data transmission.

Description

technical field [0001] The invention belongs to the field of network information and data security, and in particular relates to a secure data transmission method based on interleaving and fragmentation. Background technique [0002] In the communication network, there is a large amount of data interaction between nodes. With the exponential growth of network data, the security of information content becomes more and more important. It is necessary to provide a certain security encryption mechanism to ensure the security of data transmission. [0003] Traditional data encryption technologies mainly include symmetric encryption and asymmetric encryption. The former requires the same key for data encryption and decryption, while the latter divides the secret key into a pair of public key and private key. The text can be decrypted by the party holding the private key. Symmetric encryption and asymmetric encryption technology can provide high-level secure data transmission and ...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L9/06
CPCH04L1/0071H04L9/06
Inventor 张振江张文宇沈波刘云曾剑隽李胜钊王越孙枫
Owner BEIJING JIAOTONG UNIV
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