Redactable Blockchain with Fine-Grained Autonomy and Transaction Rollback

【Author】 Peng, Chunying; Xu, Haixia

【Source】SCIENCE OF CYBER SECURITY, SCISEC 2022

【影响因子】

【Abstract】Redactable blockchain is an innovative but controversial research field emerging in recent years, aiming at revising the blockchain data in a safe and controlled manner without eroding the nature of the blockchain. In this paper, we weigh the conflict between the immutability and editing of blockchain, present a redactable consortium blockchain with fine-grained autonomy and transaction rollback, supporting user data self-management, mandatory deletion of harmful information and recovery of wrong transfers within a specific time. In order to achieve the first two requirements, we put forward a double trapdoor key-exposure free chameleon hash function (DTCH), ensuring the dual needs of data modification and chain governance. In addition, we leverage the concept of temporary accounts to realize transaction rollback.

【Keywords】Redactable blockchain; Chameleon hash; Self-management; Transaction rollback; Key-exposure free

【发表时间】2022

【收录时间】2023-02-19

【文献类型】理论模型

【主题类别】

区块链技术-核心技术-可编辑区块链