A Signature Scheme Applying on Blockchain Voting Scene Based on the Asmuth-Bloom Algorithm
Lipeng Wang, Mingsheng Hu, Zhijuan Jia, Bei Gong, Yanfang Lei · 2018
The voting scheme applying on the blockchain can be used to evaluate credit and verify identities. Traditional signature schemes for voting scene exists several drawbacks such as distrust of central nodes and inefficiency for group signature and ring signature respectively. A new signature scheme based on Asmuth-Bloom scheme is proposed which is promising for the Blockchain. The proposed scheme without the participation of the dealer is able to synthesize the signature with the shares, during which the group private key is not exposed and the sensitive data will be validated to ensure the security of data transmitting in the Blockchain unsafe transmission channel. Security analysis shows that the proposed design for solving the discrete logarithm is able to resist malicious attacks. Computational complexity analysis shows that the new one with low computational cost and transmission efficiency can be effectively adapted to the Blockchain.