Cryptology ePrint Archive: Report 2015/1066

Cryptanalysis of A Privacy-Preserving Smart Metering Scheme Using Linkable Anonymous Credential

Haipeng Qu, Peng Shang, Xi-Jun Lin, and Lin Sun

Abstract: To accomplish effective privacy protection in smart grid systems, various approaches were proposed combining information security technology with the smart grid's new features. Diao et al. proposed a privacy-preserving scheme using linkable anonymous credential based on CL signature, and demonstrated its identity anonymity, message authentication and traceability of broken smart meters. In this paper, a forgery attack is presented to point out the protocol dissatisfies message authentication and unforgeability. We hold the idea that this scheme doesn't have basic safety requirements and application value.

Category / Keywords: public-key cryptography / Smart grid; Privacy protection; Linkable anonymous credential; Message authentication; Forgery attack; Cryptanalysis

Date: received 1 Nov 2015

Contact author: sp09_ouc at 163 com

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Version: 20151102:111435 (All versions of this report)

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