Implementation method of blockchain privacy protocol

The invention discloses an implementation method of a blockchain privacy protocol. The method comprises the following steps: storing commitments of bills for private transaction on a blockchain on a Shrubs Merkel tree, wherein each layer of the Shubs Merkel tree is provided with a Shub node, a new leaf node is added to the Shubs Merkel tree to store commitments, and when the new leaf node is added, only one Shub node needs to be updated. According to the technical scheme, privacy protection can be carried out on token transaction, and the token transaction processing method and device can be efficiently applied to intelligent contracts. 本发明公开了一种区块链隐私协议的实现方法，包括：将区块链上进行隐私交易的票据的承诺存储在Shrubs默克尔树上，其中，Shrubs默克尔树的每层具有一个Shrub节点，在Shrubs默克尔树上添加一个新的叶节点以存储承诺，当添加新的叶节点时只需更新一个Shrub节点。本发明的上述技术方案，可以对代币交易进行隐私保护，还可以高效地应用于智能合约。