Blockchain Multi-signature Wallet System Based on QR Code Communication
BLOCKCHAIN TECHNOLOGY AND APPLICATION, CBCC 2022(2022)
摘要
In order to avoid the risk of theft and loss of the private key of the blockchain wallet, a novel secure and stable blockchain multi-party signature system combining software and hardware is proposed. First, at the software level, multi-party key management method is adopted to divide the blockchain wallet key into multiple fragments for multi-point storage. Threshold signature technology is adopted to provide key escrow and retrieval services. Then a cold wallet for storing keys is designed at the hardware level. In order to avoid the risk of being attacked by hackers through network contact, a visible light communication method based on Quick Response Code is proposed. The Base45 coding scheme is adopted to improve the coding efficiency of QR Code, and the GG18 multi-party signature process is optimized. Finally, this paper analyzes the security of visible light communication, and verifies the efficiency of this method by experiments.
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关键词
multi-signature
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