Data processing method and device based on block chain
A data processing and blockchain technology, applied in the blockchain field, can solve the problems of untrustworthy data sources outside the chain, affecting the reliability of smart contract processing results in the blockchain network, and tampering of data outside the chain.
Active Publication Date: 2021-06-11
工银科技有限公司 +1
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Problems solved by technology
Blockchain technology allows trusted transactions without third-party nodes. However, with the large-scale application of blockchain technology, the disadvantages of blockchain networks as data islands are becoming more and more obvious
[0003] In the process of implementing the disclosed technical solution, the inventors found that in related technologies, when obtaining off-chain data based on the blockchain network, there is a risk that the source of the off-chain data is untrustworthy and the off-chain data is tampered with, which affects the blockchain network. Reliability of smart contract processing results
Method used
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[0030] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. It should be understood, however, that these descriptions are illustrative only and are not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present disclosure.
[0031] The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the present disclosure. The terms "comprising", "comprising", etc. used herein indicate the presence of features, opera...
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The invention provides a block chain-based data processing method, which is applied to an oracle system and comprises the following steps: receiving a data query request from an intelligent contract node; determining a target data source indicated by the data query request and data parameters of out-of-chain data to be queried; requesting to obtain out-of-chain data indicated by the data parameter from the target data source; receiving signed encrypted out-of-chain data returned by the target data source; carrying out signature verification operation on the signed encrypted out-of-chain data; under the condition that the signature verification is passed, carrying out decryption operation aiming at the encrypted out-of-chain data; and returning the decrypted out-of-chain data to the intelligent contract node. The invention further provides a data processing device based on the block chain, electronic equipment and a computer storage medium.
Description
technical field [0001] The present disclosure relates to the technical field of block chains, in particular to a data processing method and device based on block chains. Background technique [0002] With the increasing maturity of blockchain technology, blockchain applications have developed rapidly. Blockchain technology allows trusted transactions without third-party nodes. However, with the large-scale application of blockchain technology, the disadvantages of blockchain networks as data islands are becoming more and more obvious. [0003] In the process of implementing the disclosed technical solution, the inventors found that in related technologies, when obtaining off-chain data based on the blockchain network, there is a risk that the source of the off-chain data is untrustworthy and the off-chain data is tampered with, which affects the blockchain network. Reliability of smart contract processing results. Contents of the invention [0004] One aspect of the pres...
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Patent Timeline
Login to View More IPC IPC(8): G06F16/2458G06F21/60H04L9/32H04L29/06
CPCG06F16/2471G06F21/602H04L63/0435H04L9/3247
Inventor 王绍刚马国祥王舒榕
Owner 工银科技有限公司