In a block-chain IoT environment, when data or device authentication information is put on a block chain, personal information may be leaked through the proof-of-work process or address search. In this paper, we apply Zero-Knowledge proof to a smart meter system to prove that a prover without disclosing information such as public key, and we have studied how to enhance anonymity of block chain for privacy protection.
ACKNOWLEDGMENT This study was conducted as a result of the research result of F' uture Creation Science Department' and 'Korea Internet Promotion Agency' \u201cMaster degree program support project of knowledge information engineering department with employment contract type\u201d.
