Selective Deletion in a Blockchain

2020 IEEE 40th International Conference on Distributed Computing Systems (ICDCS) Pub Date : 2020-11-01 DOI:10.1109/ICDCS47774.2020.00160

P. Hillmann, Marcus Knüpfer, Erik Heiland, A. Karcher

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引用次数: 8

Abstract

The constantly growing size of blockchains becomes a challenge with the increasing usage. Especially the storage of unwanted data in a blockchain is an issue, because it cannot be removed naturally. In order to counteract this problem, we present the first concept for the selective deletion of single entries in a blockchain. For this purpose, the general consensus algorithm is extended by the functionality of regularly creating summary blocks. Previous data of the chain are summarized and stored again in a new block, leaving out unwanted information. With a shifting marker of the Genesis Block, data can be deleted from the beginning of a blockchain. In this way, the technology of the blockchain becomes fully transactional. The concept is independent of a specific block structure, network structure, or consensus algorithm. Moreover, this functionality can be adapted to current blockchains to solve multiple problems related to scalability. This approach enables the transfer of blockchain technology to further fields of application, among others in the area of Industry 4.0 and Product Life-cycle Management.

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区块链中的选择性删除

随着使用的增加，区块链的规模不断增长成为一个挑战。特别是在区块链中存储不需要的数据是一个问题，因为它不能自然删除。为了解决这个问题，我们提出了选择性删除区块链中单个条目的第一个概念。为此，一般共识算法通过定期创建汇总块的功能进行扩展。区块链的先前数据被汇总并再次存储在一个新的区块中，删除不需要的信息。通过创世纪区块的移动标记，可以从区块链的开始删除数据。通过这种方式，区块链技术变得完全具有事务性。该概念独立于特定的块结构、网络结构或共识算法。此外，该功能可以适用于当前的区块链，以解决与可扩展性相关的多个问题。这种方法可以将区块链技术转移到其他应用领域，包括工业4.0和产品生命周期管理领域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2020 IEEE 40th International Conference on Distributed Computing Systems (ICDCS)

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