A method and device for interacting between a block chain and the out-of-chain data

A blockchain and data technology, applied in the field of information processing

Pending Publication Date: 2019-04-23
ZHONGAN INFORMATION TECH SERVICES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another problem is confidentiality query. For example, if a smart contract needs to obtain personal privacy data, t...

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  • A method and device for interacting between a block chain and the out-of-chain data
  • A method and device for interacting between a block chain and the out-of-chain data
  • A method and device for interacting between a block chain and the out-of-chain data

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Embodiment Construction

[0021] Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the same numerals may be used for similar components or functional assemblies in the drawings. The accompanying drawings are only intended to illustrate embodiments of the present disclosure. Those skilled in the art can obtain alternative implementations from the following descriptions without departing from the spirit and protection scope of the present disclosure.

[0022] The terms "including", "comprising" and similar terms used herein should be understood as open terms, that is, "including / including but not limited to", which means that other content can also be included. The term "based on" is "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one further embodiment", and so on. The word "exemplary" is used herein to mean "serving as an exa...

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Abstract

The embodiment of the invention discloses a method and device for interacting between a block chain and the out-of-chain data. The method may include A, when a user smart contract requests to acquiretarget data outside a block chain network in a process of executing the user smart contract in the block chain network, generating a data request and calling an interactive smart contract, the data request serving as an entry parameter of the interactive smart contract and including address information of the target data; and B, executing the interactive smart contract, and obtaining the target data fed according to the address information through a trusted environment. According to the method disclosed by the embodiment of the invention, the credible data source outside the chain can be ensured to safely and completely enter the user intelligent contract, and the reliable data interaction between the user intelligent contract and the external world is realized.

Description

technical field [0001] The present disclosure generally relates to information processing technology, and more specifically, relates to a method, an apparatus, and a corresponding computer-readable storage medium for interacting between blockchain and out-of-chain data. Background technique [0002] Blockchain (Block Chain) technology is based on a decentralized peer-to-peer network, which combines cryptography principles with consensus mechanisms to ensure the coherence and continuity of data in distributed blockchain nodes, and to achieve non-tamperable and Features such as unforgeability, thus creating a distributed trust system that is private, efficient and secure. [0003] A smart contract is a computer protocol designed to communicate, verify or enforce contracts in an informational manner. Smart contracts allow for trusted transactions without third parties, which are traceable and irreversible. However, the blockchain is isolated from the outside world, and it can...

Claims

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Application Information

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IPC IPC(8): G06F21/62G06F21/60
CPCG06F21/606G06F21/6245
Inventor 孙亮李雪峰吴小川
Owner ZHONGAN INFORMATION TECH SERVICES CO LTD
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