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User privacy data encryption and decryption method and system

A user privacy and data encryption technology, which is applied in the user privacy data encryption and decryption method and system field, can solve security problems and other problems, and achieve the effect of improving encryption speed and encryption effectiveness

Pending Publication Date: 2022-04-29
航天科工网络信息发展有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

While the speed is satisfactory, there are security concerns

Method used

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  • User privacy data encryption and decryption method and system
  • User privacy data encryption and decryption method and system
  • User privacy data encryption and decryption method and system

Examples

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specific Embodiment

[0085] Based on the determination process of the above-mentioned strong prime number, the present invention provides a specific embodiment of determining the strong prime number, as follows:

[0086] 1) In the present invention, a prime number within 500 is used as the initial prime number array, and a prime number h is randomly selected in the prime number array 1 .

[0087] 2) Randomly generate an integer x from 1 to 9, combined with the prime number h obtained in the first step 1 , calculate 2ah 1 +1, the value of a is gradually increased by one from x, and the first prime number that appears is obtained by using the prime number judgment function, which is recorded as h 2 .

[0088] 3) Randomly generate an integer y from 1 to 9, and calculate 2bh 2 +1, the value of b is gradually increased by one from y, and the first prime number that appears is obtained by using the prime number judgment function, which is recorded as h 3 .

[0089] 4) Let P=2h 3 -1, use the prime...

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Abstract

The invention discloses a user privacy data encryption and decryption method and system. According to the user privacy data encryption and decryption method, plaintext data is encrypted by adopting a DES algorithm, the encryption speed can be improved, and in order to further improve the encryption effectiveness, a key used in the encryption process of the DES algorithm is encrypted by adopting an RSA encryption algorithm, so that encryption defect complementation of the DES algorithm and the RSA algorithm is realized, and the encryption efficiency is improved. The problem that the encryption speed and the encryption security cannot be met at the same time in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of data encryption and decryption, in particular to a method and system for encrypting and decrypting user private data. Background technique [0002] In the context of the rapid development of computer technology and network technology, the degree of digitalization of information is also increasing, and the amount of big data is showing a trend of rapid growth. This includes a large amount of user privacy data. Private data refers to highly sensitive data that is private and has a high level of security protection. Data is most vulnerable to attacks and theft during storage and retrieval processing. Therefore, the security protection of data privacy has become an urgent problem to be solved in maintaining data security and smooth operation, and it is an important topic in the field of information security. [0003] The RSA system is one of the public key cryptosystems that have been applied and populariz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/06H04L9/30H04L9/40G06F21/60G06F21/62
CPCH04L9/0625H04L9/3033H04L63/0442G06F21/602G06F21/6245
Inventor 郭威韩双旭王凯伟
Owner 航天科工网络信息发展有限公司
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