Ablockchain asset trading system based on homomorphic encryption and ring signature

Abstract

Abstract: A blockchain asset trading system based on homomorphic encryption and ring signatures is proposed.Through homomorphic encryption technology, user transaction information can be encrypted to make it invisible to other users, while ring signatures can verify the homomorphic encrypted cipher text, it is checked for business legitimacy to ensure the legitimacy of the transaction. This method can protect the originally open and transparent user asset transaction information on the blockchain. It has the characteristics of decentralization, security, reliability, and high ease of use. It can effectively protect the privacy of users and facilitate the enhancement of the zone. Blockchain's privacy protection function for user transaction information in financial asset transaction scenarios is conducive to promoting the implementation and development of blockchain privacy protection technology in financial scenarios.

Key words: blockchain, homomorphic encryption, ring signature, finance asset trading, privacy protection

FENG Haoming, CHEN Hang, LIU Yanping. Ablockchain asset trading system based on homomorphic encryption and ring signature[J]. Information and Communications Technology and Policy, 2020, 46(1): 64-68.

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URL: http://ictp.caict.ac.cn/EN/Y2020/V46/I1/64

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