Blockchain technology is generally immutable,but there are limita-tions to the practical application of this feature.Therefore,a redactable blockchain was introduced.Based on the literature and the practical needs of ...Blockchain technology is generally immutable,but there are limita-tions to the practical application of this feature.Therefore,a redactable blockchain was introduced.Based on the literature and the practical needs of redactable blockchains,we propose a new type of chameleon hash function with stronger securityfeatures,aTraceableDecentralizedPolicy-BasedChameleonHash,which is named TDPCH in this paper.Then,the TDPCH is applied to the design of redactable blockchain.Our scheme has a better application scenario,which can help realize the adaptation of the blockchain,and has the security characteristics of decentralization of authority management and accountability of modifiers.展开更多
基金supported by the National Natural Science Foundation of China under Grant No.61702570 and 61907042Beijing Natural Science Foundation under Grant No.4194090.
文摘Blockchain technology is generally immutable,but there are limita-tions to the practical application of this feature.Therefore,a redactable blockchain was introduced.Based on the literature and the practical needs of redactable blockchains,we propose a new type of chameleon hash function with stronger securityfeatures,aTraceableDecentralizedPolicy-BasedChameleonHash,which is named TDPCH in this paper.Then,the TDPCH is applied to the design of redactable blockchain.Our scheme has a better application scenario,which can help realize the adaptation of the blockchain,and has the security characteristics of decentralization of authority management and accountability of modifiers.
