Method for realizing transverse expansion of distributed account book based on fragmentation mechanism

Abstract

The invention discloses a method for realizing transverse expansion of a distributed account book based on a fragmentation mechanism. The method comprises the following steps: (1) formulating a verifier fragmentation time period, within any time period, carrying out fragmentation combination on all verifiers by using a distributed random number generation protocol, and dividing the verifier fragmentation into a plurality of fragmentations; (2) carrying out concurrent processing transaction in each fragment, and regularly generating consistent state blocks; (3) selectively carrying out double verification in the transaction process to guarantee the security of the transaction; and (4) adopting a cross-fragment submission protocol, carrying out a locking / unlocking mechanism on the client, sothat the cross-fragment atomic processing transaction of the client is realized. Based on the above steps, in order to provide a horizontally extended method which does not damage long-term security,the method deploys a state block in each fragment to reduce storage space and update overhead, adopts a trusted but verified two-layer model to reduce small transaction delay, and adopts an atomic submission protocol among multiple fragments to realize a cross-fragment atomic submission transaction function.

Description

technical field [0001] The invention belongs to the technical field of block chains, and in particular relates to a method for realizing horizontal expansion of distributed ledgers based on a sharding mechanism. Background technique [0002] Blockchain (Blockchain) technology is the underlying technology for maintaining public ledgers in a decentralized and mutual distrust environment. Its essence is to realize a distributed and non-tamperable transaction ledger based on cryptographic methods, and each node in the blockchain network keeps a public ledger that records all transactions. The security of transactions is guaranteed through asymmetric encrypted signatures, and the entire network reaches consensus through common consensus algorithms such as POW or POS, and the transmission of messages and the synchronization of data are realized through P2P technology. The distributed storage network is a distributed file system based on p2p technology. After the file is fragmente...

AI Technical Summary

Problems solved by technology

However, existing proposals for realizing fragmented decentralized ledgers either abandon permissionless decentralization, or introduce new security assumptions in exchange for security.

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