Abstract
Zhu proposed a provable privacy-protection system which could achieve two kinds of privacy protection and switch between them optionally by users. He claimed his scheme could achieve anonymous, privacy-protection, and practical multi-server architecture. His scheme is based on chaotic maps. He thus claimed his scheme can not only own high efficiency and unique functionality but is also robust to various attacks and achieves perfect forward secrecy. However, in this article, we will review Zhu’s scheme, applied in a multi-server environment and adopted in the provable privacy protection system. In addition to the review, we analyzed its protocol and elaborated its weakness of resulting insecurity.
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