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Charitable system privacy protection method and system based on block chain

A privacy protection and blockchain technology, applied in the field of blockchain technology and cryptographic data encryption and decryption, to achieve the effect of providing space utilization, protecting privacy security, and ensuring data integrity

Pending Publication Date: 2022-03-01
SHENYANG CALCULATION TECH INST CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention solves the problem of privacy protection by using blockchain smart contracts and related knowledge of cryptography

Method used

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  • Charitable system privacy protection method and system based on block chain
  • Charitable system privacy protection method and system based on block chain
  • Charitable system privacy protection method and system based on block chain

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Embodiment Construction

[0060] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0061] The user-oriented privacy protection of the present invention restricts the user's access to data authority and ensures private data by writing smart contracts; the data-oriented privacy protection uses the improved AES algorithm to dynamically construct the S-box so that its various properties are randomly transformed. Increase the security of the encryption algorithm; at the same time, use the digest algorithm to calculate the digest of the generated ciphertext to ensure the integrity of the data. The improved AES algorithm and digest algorithm are used to ensure the security and integrity of data encryption in the charity system, while improving the operating efficiency, so that the entire system has sufficient credibility and effectively compensates for the risk of data leakage in the traditional charity system.

[0062] like Figu...

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Abstract

The invention relates to a charity system privacy protection method and system based on a block chain. According to the method, the privacy protection of the charity system is divided into user-oriented privacy protection and data-oriented privacy protection. The user-oriented privacy protection limits the data access authority of the user and ensures the privacy data by writing an intelligent contract; according to data-oriented privacy protection, an S box is dynamically constructed by using an improved AES algorithm, so that various properties of the S box are changed randomly, and the security of an encryption algorithm is improved; and meanwhile, a digest algorithm is used for calculating a digest for the generated ciphertext, so that the integrity of data is ensured. By using the improved AES algorithm and the abstract algorithm, the security and integrity of data encryption in the charity system are ensured, and the operation efficiency is improved, so that the whole system has enough credibility, and the risk of data leakage of the traditional charity system is effectively made up.

Description

technical field [0001] The present invention relates to the fields of blockchain technology and cryptography data encryption and decryption, and can be summed up as a method and system for privacy protection of a charity system based on blockchain. Background technique [0002] In the field of charity, through the advanced features of blockchain technology, through online fundraising and other means, the flow direction of donations can be recorded, and the whereabouts of donations can be checked at any time. The charity system using blockchain technology can track donations, conduct fair and open operations on charity accounts, improve the transparency of information for charitable organizations, and improve the public's sense of trust in charitable organizations. [0003] While ensuring the credibility of the charity system, it is necessary to pay more attention to the privacy data of users. The value of data itself is increasingly prominent in today's informatization. How...

Claims

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Application Information

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IPC IPC(8): H04L9/40H04L9/06
CPCH04L63/0407H04L63/10H04L63/0428H04L9/0631H04L9/0643H04L2209/42Y02D30/50
Inventor 于金刚温直锋于波侯勇康于碧辉李姝
Owner SHENYANG CALCULATION TECH INST CHINESE ACAD OF SCI
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