Arbitration quantum signature design method based on Grover iteration flexible tracking

Abstract

The invention discloses an arbitration quantum signature design method based on Grover iteration flexible tracking, and the method employs a Grover search algorithm to achieve the purpose that an arbitration management party can find a signer of a problem signature when a signature dispute occurs. In the arbitration process, the arbitration management system and each signature participant negotiate to obtain a final secret key and find a signer with a problem signature, so that a direct'disclosure 'mechanism of an arbitration group signature is avoided. The method is characterized in that a complete arbitration signature verification system is established, an arbitration management system can select whether to disclose the identity of a problem signature signer, and the method has flexible traceability and fairness.

Description

technical field [0001] The invention relates to the fields of quantum cryptography and quantum signatures, in particular to an arbitration quantum signature design method based on Grover iterative flexible tracing. Background technique [0002] Quantum cryptography is a new type of cryptographic system based on cryptography and quantum mechanics, and uses quantum physics methods to realize cryptographic ideas. The application of quantum cryptography in digital signatures, the combination of quantum signatures and quantum computing is a frontier field today, and it has important theoretical significance and application value for the future development of quantum cryptography. [0003] The shortcomings and deficiencies of classical computing in information processing have prompted the rapid development of quantum computing. The emergence of Shor's algorithm and Grover's search algorithm proves that quantum computing has powerful parallel processing capabilities, so scholars u...

AI Technical Summary

Problems solved by technology

There are some research results on the design and analysis of the former signature scheme, but little and insufficient research on the latter signature scheme based on controlled operations between bits

In particular, there is no rigorous dispute resolution mechanism for signature traceability, and there is no unified evaluation standard for security, which lacks corresponding flexibility for the application of arbitration quantum signatures in various fields

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