一种区块链数据的云存储与共享方法.

Nodes in blockchain system needed to store redundantly whole ledger in order to reach a consensus in a distrustful environment. This paper proposed a storing method for blockchain data to reduce ledger storing demands on nodes. This method used M modules for whole blockchain data and nodes signature. Each node stored its blocks and digit signatures on one or more modules. When the quantity of nodes, denoted as N, in blockchain system was big enough, M(M<< N) could be well-chosen to avoid new security weakness, meanwhile, reduced redundant storage of blockchain data. The experiment based on Hyperledger Fabric illustrates that this method can reduce efficiently storage requirement for nodes. [ABSTRACT FROM AUTHOR]

为了在不信任的环境中达成共识，区块链节点需要冗余地存储完整的区块链数据，对节点的存储要求 很高。提出一种区块链数据的存储方法，设置Ｍ个云存储共享模块用于存储完整的区块链以及节点数字签名， 节点将区块及其数字签名存储到若干个云存储共享模块。当区块链节点数量Ｎ足够大时，能够选择合适的Ｍ （Ｍ＜＜Ｎ），不会引入新的安全脆弱点，同时减少区块链数据的冗余存储量。在 Hyperledger Fabric上实施该方法， 实验结果表明，该方法能够有效降低节点的区块账本存储要求。 [ABSTRACT FROM AUTHOR]