January 1, 2021IEEE Transactions on Information Forensics and Security22 citations

Cryptoanalysis of an Authenticated Data Structure Scheme With Public Privacy-Preserving Auditing

SLShiyu LiTongji University YZYuan ZhangUniversity of Electronic Science and Technology of China CXChunxiang XuUniversity of Electronic Science and Technology of China

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Abstract

In this letter, we point out that the privacy-preserving adaptive trapdoor hash authentication tree scheme (published in IEEE TIFS, doi: 10.1109/TIFS.2020.2986879) can be invalidated by an adversarial cloud server: if the outsourced data is arbitrarily modified, the cloud server still can pass the third-party auditor's auditing.

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