Data processing method and device

一种数据处理、目标数据的技术，应用在区块链领域，能够解决难以解决重放攻击、安全隐患、输出至第三方等问题

Pending Publication Date: 2022-07-01
ANT BLOCKCHAIN TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this solution has achieved a certain degree of authority control over the acquired data, it is still difficult to solve the replay attack: the data acquisition request initiated by the requester may be intercepted by a third party and sent to the management party again. The replay request still contains the requester's signature, so the replay request can still pass the verification of the manager and be processed normally, resulting in the data maintained by the manager being output to a third party, which poses a major security risk

Method used

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Examples

Experimental program
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Embodiment Construction

[0034] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments are not intended to represent all implementations consistent with one or more embodiments of this specification. Rather, they are merely examples of apparatus and methods consistent with some aspects of one or more embodiments of this specification, as recited in the appended claims.

[0035] It should be noted that: in other embodiments, the steps of the corresponding methods are not necessarily performed in the order shown and described in this specification. In some other embodiments, the method may include more or fewer steps than described in this specification. In addition, a single step described in this specificat...

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PUM

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Abstract

The embodiment of the invention provides a data processing method and device. The method is applied to a first computing engine, a first blockchain node is deployed in a first node device where the first computing engine is located, and an under-chain computing contract is deployed in a blockchain network to which the first blockchain node belongs; the method comprises the following steps: receiving a data acquisition request initiated by a requester for target data, wherein the data acquisition request comprises a timestamp, a data identifier of the target data, a public key of the requester and a signature generated by the requester for the timestamp, the data identifier and the public key based on a private key of the requester; and under the condition that the timestamp and the public key indicate that the requester is a second calculation engine, returning the target data to the second calculation engine for executing an under-chain cooperation task generated by the under-chain calculation contract, the second calculation engine and a second block chain node belonging to a second node device.

Description

technical field [0001] One or more embodiments of this specification relate to the field of blockchain technology, and in particular, to a data processing method and apparatus. Background technique [0002] Blockchain technology is built on top of transmission networks such as peer-to-peer networks. The nodes in the blockchain network use the chain data structure to verify and store the data, and use the distributed node consensus algorithm to generate and update the data. Smart contracts deployed in the blockchain can generate blockchain tasks that need to be executed off-chain. In the process of multiple blockchain nodes participating in the execution of the task, the relevant parties corresponding to each blockchain node may need to exchange data. For example, the manager corresponding to any blockchain node may need to provide data maintained by itself to the requester corresponding to other blockchain nodes, so that the latter can use the data to perform the above blo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60G06F21/62
CPCG06F21/604G06F21/6218
Inventor 谢桂鲁
Owner ANT BLOCKCHAIN TECH SHANGHAI CO LTD
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