Proxy multi-signature and blind signature are widely used in e-commerce and electronic cash systems. Combining the characteristics of these two schemes, this paper proposes an efficient proxy multi-blind signature scheme based on Schnorr signature and Chaum blind signature system. This scheme has the advantages of small computational complexity, high efficiency and strong security, and the signature length does not increase with the increase of the original signer, and can be widely used in fields such as electronic currency and electronic voting. Keywords: proxy signature; blind signature; proxy blind signature; proxy multi-blind signature
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