A Design Method of Arbitrated Quantum Signature Based on Grover Iterative Flexible Tracing

Abstract

The invention discloses an arbitration quantum signature design method based on Grover iterative and flexible tracking. The design uses a Grover search algorithm to realize that when a signature dispute occurs, the arbitration management party can find the signer of the problematic signature. During the arbitration process, the arbitration management system negotiates with each signature participant to obtain the final key, find the signer of the problem signature, and avoid the direct "public" mechanism of the arbitration group signature. The present invention is characterized in that a complete arbitration signature verification system is established, and the arbitration management system can choose whether to disclose the identity of the signature signer of the problem, which 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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