Safe storage system and method for off-chain data of block chain

A blockchain and data technology, applied in the blockchain field, can solve problems such as off-chain data loss

Active Publication Date: 2017-12-15
北京中科锐链科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is the risk of loss of off

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  • Safe storage system and method for off-chain data of block chain
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  • Safe storage system and method for off-chain data of block chain

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Embodiment Construction

[0039] In the present invention, after generating a data authentication code for the data, they are stored in a reliable third-party storage together, and then after a certain period of time, the off-chain data or its hash value is written into the block chain (main chain), which solves the problem of block chain processing. At the same time, the speed bottleneck solves the problem of data loss. The off-chain data in the present invention are not blockchain data (distributed ledger data) because they have not been recognized by most nodes in the entire network, but because the data authentication code disclosed in the present invention has public verifiability, anti-forgery and non-repudiation reliability, and the existence of a third-party reliable storage, so as to ensure its security, and in the event of a dispute, the present invention does not need to store off-chain data into the main chain to provide factual evidence, while the usual blockchain technology can only authen...

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PUM

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Abstract

The invention discloses a safe storage system and method for off-chain data of a block chain. The method comprises the steps of reading current off-chain data, and after preprocessing, generating a data authentication code of the current off-chain data according to a policy for generating data authentication codes, wherein the data authentication code can be used for authenticating all off-chain data; verifying the correctness of written off-chain data and the corresponding data authentication code, and writing the off-chain data which is authenticated successfully into a backup buffer area; according to a set policy for writing data into a main chain of the block chain by the system, writing the processed off-chain data on the backup buffer area into the main chain of the block chain. According to the safe storage system and method for the off-chain data of the block chain, by introducing reliable storage of a third party, the loss problem of the off-chain data is solved; by utilizing the characteristic that the data authentication code of the current off-chain data can be used for authenticating all the off-chain data, the loss risk of the off-chain data can be further reduced, the reliability and security of a block chain branching technique are improved, and meanwhile the authentication speed is increased.

Description

technical field [0001] The present invention relates to block chains, in particular to a system and method for safely storing block chain off-chain data. Background technique [0002] Blockchain is a data structure that combines data blocks in a sequential manner in chronological order and associates data blocks using cryptographic methods. It uses block chain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, uses smart contracts composed of automated script codes to program and Operational data is a brand-new distributed infrastructure and computing paradigm, with features such as immutability, decentralization, anonymity, and traceability. At present, blockchain has been widely used in the financial industry and has shown broad application prospects in many fields. [0003] However, the blockchain network represented by Bitcoin needs to ...

Claims

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Application Information

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IPC IPC(8): G06F21/64G06F21/62G06F21/60H04L9/08H04L9/32
Inventor 王晶
Owner 北京中科锐链科技有限公司
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