Abstract
Traditional anti-quantum methods and multi-signature technologies to secure the blockchain against quantum attacks will quickly reduce the efficiency and scalability of the industrial blockchain, where the computational resources will experience a polynomial rise with the increasing number of traders. Here, a quantum blind multi-signature method is proposed for the multi-party transaction to provide anti-quantum security. First, the proposed multi-party transaction frame and quantum key distribution in the industrial blockchain are introduced. It integrates a novel quantum blind multi-signature algorithm that is based on the quantum entanglement mechanism, and it is absolutely secure in theory. Second, the anti-quantum multi-signature algorithm is illustrated, where there are four phases, i.e., initialization, signing, verification, and implementation. Third, the security and complexity of the proposed framework are analyzed and compared with related methods in references, and our proposed method is verified to be able to offer good computational performance and blockchain scalability for multi-party transaction. Last, the paper is summarized and future research directions are proposed.
Highlights
Today, more and more researchers have noticed the blockchain technology and its industrial application
The other kind of anti-quantum technology is the quantum technology itself. It aims to improve the quantum resistance of blockchain by using quantum mechanics, including the quantum signature [13], quantum Fourier transfer [14], and quantum blind signature scheme [15], etc. This kind of anti-quantum technology utilizes the special mechanism of quantum mechanics and has nothing to do with algorithm complexity, so we consider them as an absolute safe
The existing multi-signature schemes in blockchain [16,17] cannot both provide anti-quantum security and keep the computational performance and the scalability of blockchain. To deal with these issues, this paper proposes an anti-quantum blockchain framework based on quantum blind multi-signature method without an arbitrator to secure the blockchain against quantum attacks
Summary
More and more researchers have noticed the blockchain technology and its industrial application. It aims to improve the quantum resistance of blockchain by using quantum mechanics, including the quantum signature [13], quantum Fourier transfer [14], and quantum blind signature scheme [15], etc This kind of anti-quantum technology utilizes the special mechanism of quantum mechanics and has nothing to do with algorithm complexity, so we consider them as an absolute safe. The existing multi-signature schemes in blockchain [16,17] cannot both provide anti-quantum security and keep the computational performance and the scalability of blockchain To deal with these issues, this paper proposes an anti-quantum blockchain framework based on quantum blind multi-signature method without an arbitrator to secure the blockchain against quantum attacks.
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