Block chain network for partitions and method for realizing partition storage

Abstract

The invention discloses a block chain network for partitions. The block chain network consists of a plurality of nodes, wherein a part of the nodes or all the nodes are divided in one or more partitions according to visible authorities, for different pieces of transaction data, of each node; in a same partition, the transaction data is completely visible, and between different partitions, the transaction data is invisible; all the nodes are classified into global consensus nodes, partition consensus nodes and synchronous nodes according to authority, for participating a consensus process, of each node; the global consensus nodes store all the pieces of transaction data which passes verification in the whole network via a block chain data structure; and both the partition consensus nodes and the synchronous nodes store all the pieces of transaction data which passes verification in the partition and transaction fingerprints of all the pieces of transaction data which passes verificationin the other partitions via the block chain data structure. According to the block chain network, the nodes in the block chain network are partitioned and classified, so that the storage node range of the transaction data which passes verification is limited, and the data privacy protection effect is improved.

Description

technical field [0001] The present application relates to a blockchain (Blockchain) technology, in particular to a storage solution for verified transaction data / verified new blocks. Background technique [0002] In the "White Paper on China's Blockchain Technology and Application Development" issued by the Ministry of Industry and Information Technology on October 18, 2016, the blockchain is defined as a kind of participant who does not need to participate in the intermediary and can also rely on mutual distrust or weak trust. A technology that maintains a set of non-tamperable ledger records. First of all, the blockchain is a chain-like data structure with blocks as the unit, and each block is linked with the previous block through cryptographic proof, such as figure 1 shown. Secondly, the blockchain is a distributed ledger shared by the entire network. In many scenarios, the two technical terms blockchain and distributed ledger have the same meaning. [0003] Typicall...

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Problems solved by technology

Unauthorized nodes can only obtain encrypted transaction data, which cannot be decrypted due to the lack of decryption parameters

The disadvantage of this scheme is that all transaction data is still broadcast to all nodes in the blockchain. Although only specific authorized nodes can decrypt it, the summary of the tr...

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