Recordable and traceable block chain security deletion and modification method

Abstract

The invention discloses a recordable and traceable block chain security deletion and modification method. The method comprises the following steps: creating a block with any data according to requirements of different applications, wherein the block comprises a field recording the property of the block, and the identifier is divided into an original block, a deletion block and a modification block, the deletion block and the modification block also comprise pointers pointing to other blocks, and the pointers are used for connecting the original block, the deletion block and the modification block; during deletion, enabling a user to create a deletion block with a deletion block identifier, wherein the deletion block comprises a pointer pointing to an original block needing to be deleted and represents deletion of the original block by the deletion block, the rest data is completely consistent with the user data of the original block; after deletion is completed, modifying the block, wherein the modification process is that a user creates a modification block with a modification identifier, the modification point to the deleted block, other data are the same as or different from the original block, and when the other data are the same as the original block, the deletion process is withdrawn, and the information of the original block is stored; and not completing the modification simultaneously.

Description

technical field [0001] The invention relates to block chain technology, in particular to a recordable and traceable block chain security deletion method. Background technique [0002] Blockchain technology is currently a very hot emerging field, especially the current hot bitcoin has had a major impact in the academic and financial circles, and even the world economy. In fact, the blockchain is a chain linking many blocks. It is like a public ledger. Each page of the ledger is a block, and the ledger is the blockchain. Blockchain has potential important application value in medicine, banking, logistics and other fields. The blockchain has two important characteristics of decentralization and non-tampering. Among them, decentralization ensures that the data will not be mastered by a single individual, unit or organization, and ensures the sharing of data. At the same time, it cannot be tampered with and the asymmetry of data Sexual encryption ensures data privacy and user i...

AI Technical Summary

Problems solved by technology

However, the current blockchain application scenarios have tended to be diversified and complex. Some blockchain scenarios have departed from the P2P mode of data pointing, that is, data is pointing from people to machines. To achieve the purpose of modification or withdrawal

Therefore, most of the data in the current blockchain scene can only be deleted or modified by suspending the operation of the blockchain and re-publishing the chain, that is, rebuilding the blockchain. This method is very time-consuming and expensive. Consume resources

Frequent rebuilding will affect the stability of the blockchain service, and even cause data loss, weakening the credibility and integrity of the blockchain

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