Abstract
AbstractTraditional electronic license management system has some problems, such as data fraud and difficulty in sharing. To solve these problems, a blockchain-based electronic license storage and sharing model are proposed. Firstly, build alliance chain, and use the characteristics of blockchain to ensure the authenticity of electronic license information. Secondly, the El Gamal digital signature scheme is improved. Finally, the PBFT consensus algorithm is improved. The analysis and results show that the model can effectively and quickly realize the secure storage and sharing of electronic licenses.KeywordsBlockchainElectronic licenseDigital signaturePractical Byzantine fault tolerance algorithm (PBFT)
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