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Data encryption method and device and electronic equipment

A technology of data encryption and encryption algorithm, which is applied in the field of data processing, can solve the problem of high probability of data being cracked, and achieve the effects of increasing the difficulty of cracking, ensuring consistency, and enhancing complexity

Pending Publication Date: 2022-07-29
BANK OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the calculation method of the existing MD5 encryption algorithm is fixed, and the specific calculation order and content of each calculation factor have been disclosed. Therefore, the data encrypted by the MD5 encryption algorithm has a high probability of being cracked.

Method used

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  • Data encryption method and device and electronic equipment
  • Data encryption method and device and electronic equipment
  • Data encryption method and device and electronic equipment

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Embodiment Construction

[0046] It should be noted that the data encryption method and system provided by the present invention can be used in the field of network security or the field of finance. The above is only an example, and does not limit the application field of the data encryption method and system provided by the present invention.

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] The embodiment of the present invention discloses a data encryption method, device and electronic equipment. ...

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Abstract

The invention discloses a data encryption method and device and electronic equipment, and can be applied to the field of network security or finance. The method comprises the following steps: acquiring to-be-encrypted data, filling the to-be-encrypted data by adopting an MD5 encryption algorithm, determining the data length of the filled to-be-encrypted data, carrying out array processing on an initial magic number to obtain a plurality of initial calculation factor arrays, carrying out cyclic displacement on each initial calculation factor array based on the data length, and obtaining a plurality of initial calculation factor arrays; and obtaining each target calculation factor array which is random in sequence, and obtaining target encrypted data by adopting an MD5 encryption algorithm on the to-be-encrypted data and each target calculation factor array. When the to-be-encrypted data is encrypted, the sequence of multiple calculation factors in the adopted MD5 encryption algorithm is random, so that the complexity of the MD5 encryption algorithm is enhanced, and the cracking difficulty of the encrypted data is improved. The randomness of multiple calculation factors is associated with the data length, so that the consistency of encryption results obtained by the same data source each time is ensured.

Description

technical field [0001] The present invention relates to the technical field of data processing, and more particularly, to a data encryption method, device and electronic device. Background technique [0002] Currently, in order to prevent data theft and ensure data security, data is usually encrypted. The MD5 encryption algorithm is widely used in the field of data encryption protection because of its universal, stable and fast characteristics. [0003] However, the calculation method of the existing MD5 encryption algorithm is fixed, and the specific calculation sequence and content of each calculation factor have been disclosed. Therefore, the data encrypted by the MD5 encryption algorithm has a high probability of being cracked. [0004] To sum up, how to provide a data encryption method, improve the difficulty of cracking encrypted data, and ensure the security of encrypted data has become a technical problem that those skilled in the art need to solve urgently. SUMMA...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/06H04L9/14
CPCH04L9/0643H04L9/14
Inventor 王子铭王志翔叶雪峰
Owner BANK OF CHINA