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Data processing method and device

A technology of data processing and plaintext data, which is applied in the field of blockchain in the field of financial technology

Pending Publication Date: 2021-03-30
WEBANK (CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a data processing method and device, which solves the problem of the credibility of the centralized organization in the prior art

Method used

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Experimental program
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Embodiment approach

[0122] In an optional implementation mode (hereinafter referred to as an implementation mode based on bit operations), the preset operation is specifically: after the plaintext operation results of each bit of the plaintext are obtained through the first sub-preset operation, the plaintext A second sub-preset operation is performed on the plaintext operation result of each bit.

[0123] It should be noted that the preset operation is actually sufficient to first perform an operation on each bit to obtain the result of each bit, and then calculate the overall result based on the result of each bit, thus realizing the slice operation.

[0124] The first sub-preset operation and the second sub-preset operation are: any logical operation in the various logical operations or a compound logical operation of the various logical operations; the first plaintext data and the second The number of bits of the two plaintext data is the same.

[0125] The conversion operation specifically ...

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Abstract

The invention discloses a data processing method and device. The method comprises the steps that a first participant acquires a second public key and a second ciphertext from a second participant; thefirst participant encrypts first plaintext data of the first participant according to the second public key and the preset encryption algorithm to obtain a third ciphertext; and the first participantobtains a first ciphertext processing result based on conversion operation of preset operation under the preset encryption algorithm according to the second public key, the second ciphertext and thethird ciphertext. When the method is applied to financial science and technology, the first ciphertext processing result can be obtained without the help of a third-party institution, and the credibility problem does not exist.

Description

technical field [0001] The present invention relates to the field of blockchain (blockchain) in the field of financial technology (Fintech), in particular to a data processing method and device. Background technique [0002] With the development of computer technology, more and more technologies are applied in the financial field, and the traditional financial industry is gradually transforming into financial technology (Fintech). However, due to the security and real-time requirements of the financial industry, technology (block chain) Blockchain, big data, distributed, etc.) put forward higher requirements. Financial institutions have many users, and in some scenarios, data will be processed in the form of ciphertext. [0003] The current data processing method in the form of ciphertext is that users submit the ciphertext to the centralized organization for processing. For example, both users A and B submit their ciphertexts to the centralized organization C, and the cen...

Claims

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Application Information

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IPC IPC(8): G06F21/60G06F16/27G06Q40/04
CPCG06F21/602G06F16/27G06Q40/04
Inventor 王朝阳严强李昊轩廖飞强李辉忠张开翔范瑞彬
Owner WEBANK (CHINA)