Unlock instant, AI-driven research and patent intelligence for your innovation.

A Method of Quantum Blind Double Signature Resistant to Collective Noise

A quantum and noise technology, applied in digital transmission systems, user identity/authority verification, secure communication devices, etc., can solve problems such as collective noise interference and low information fidelity

Active Publication Date: 2021-01-22
NORTHWEST UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a quantum blind double signature method against collective noise to solve the problem of low information fidelity caused by collective noise interference in the actual channel in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method of Quantum Blind Double Signature Resistant to Collective Noise
  • A Method of Quantum Blind Double Signature Resistant to Collective Noise
  • A Method of Quantum Blind Double Signature Resistant to Collective Noise

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0157] In this embodiment, the validity of the method provided by the present invention is verified, and the security analysis of the protocol provided by the present invention is as follows, assuming that the eavesdropper is Eve.

[0158] In the protocol, decoy logical qubits are inserted in each sequence of logical qubits. trick logical qubits from {|0 dp >,|1 dp >,|+ dp >,|- dp >} randomly selected. (If it is resistant to collective rotation noise, the decoy logic qubit corresponding to the selection is {|0 r >,|1 r >,|+ r >,|- r >}. )

[0159] Without knowing the state of the decoy logical qubit, if Eve performs an intercept-resend attack on the decoy logical qubit, the probability of detecting the attack is 1 / 2. If Eve performs an intercept-measure-resend attack, the probability of detecting the attack is 1 / 4. For logical qubits, the probability of being detected is Obviously, as the number of attacks t increases, the probability of finding an Eve attack will...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a quantum blind double signature method against collective noise. The method provided by the invention can respectively resist collective phase shift noise and collective rotation noise. There are three parties in the method, the information owner Alice, the signer Charlie and the recipient Bob, where both Alice and Charlie signed the initial information, and the signature will be verified by Bob, and the signer cannot know the specific content of the information. At the same time, due to the use of logical qubits, the method provided by the present invention can not only resist the interference of collective noise, but also improve protocol security.

Description

technical field [0001] The invention relates to a quantum signature method, in particular to a blind double signature method with a third party. Background technique [0002] Quantum signature (QS) is a combination of digital signature and quantum mechanics. From the first quantum signature protocol proposed by Danial Gottesman to the present, there have been many signature protocols. Quantum Blind Double Signature (QBDS) is one such signature protocol that allows messages to attach proofs to their messages. For example, Alice is the buyer, they will provide initial information and need to sign their own payment. Charlie, working on behalf of the bank, signed Alice's information without knowing the buyer's initial information. [0003] The prior art proposes quantum-blind double-signature protocols based on different technologies, one of which is based on the OQKD protocol. The message owner calculates the Hash value of the classic message to be signed and encodes it into...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L9/08H04L29/06
CPCH04L9/0858H04L9/3257H04L63/12
Inventor 曹正文王磊王家耀张明慧彭进业曾贵华师静静余泽芳
Owner NORTHWEST UNIV