JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2019, Vol. 54 ›› Issue (1): 88-95.doi: 10.6040/j.issn.1671-9352.2.2018.028

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Blockchain-based anonymous cryptocurrency payment system

ZHANG Jian-hong1,2,3, BAI Wen-le1*, OU Pei-rong1   

  1. 1. College of Computer Science and Technology, North China University of Technology, Beijing 100144, China;
    2. Guangxi Key Laboratory of Cryptography and Information Security, Guilin 541004, Guangxi, China;
    3. Guangxi Key Lab of Multi-source Information Mining and Security, Guangxi Normal University, Guilin 541004, Guangxi, China
  • Published:2019-01-23

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Abstract: To achieve the users privacy protection and prevent double-spending as well as quick transaction confirmation, a blockchain-based anonymous cryptocurrency payment system is proposed by utilizing blockchain technique, Mixcoin model and proxy pre-resignature. In the payment phase, the transaction users signature is transformed into the signature of the authorized organization by using the proxy pre-signature, which reduces transaction confirmation time and improves transaction efficiency. Based on Diffie-Hellman key agreement, the common public key which is produced between the user and the merchant is act as the payees account, which realizes the anonymity of payees account well, and implements the transaction privacy protection. Compared with the other two schemes, the proposed scheme has the advantages over the others in terms of general preformation.

Key words: anonymous crypto-currency, blockchain technique, proxy pre-signature, one-time public key address, quick transaction confirmation

CLC Number: 

  • TN918.1
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