Quantum digital signature system for sending Gaussian signal based on sequence and method thereof
A quantum digital signature and signal technology, applied in the direction of digital transmission system, transmission system, optical transmission system, etc., can solve the problems of low practicality, security loopholes, and difficulty of digital signature methods, so as to improve signature efficiency and practicability Improve and improve the effect of safety
Active Publication Date: 2021-11-16
MATRICTIME DIGITAL TECH CO LTD
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- Claims
- Application Information
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Problems solved by technology
[0007] Existing digital signature methods are difficult to implement, have low practicability, cannot defend against Trojan horse attacks, and have security loopholes, and the existing schemes are signed for a single bit, and the signature efficiency for long messages is low. less practical
Method used
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Embodiment
[0066] The working method applied to the quantum digital signature system proposed by the present invention will be described below in combination with specific devices.
[0067] Select the computer that realizes data processing function software to be installed as the first data processing module 11, the second data processing module 21 and the third data processing module 32, select the continuous laser as the first laser emitting module 121 and the second laser emitting module 221, Select the intensity modulator and phase modulator as the first Gaussian modulation module 122 and the second Gaussian modulation module 222, select the beam splitter with a transmission-reflection ratio of 999:1 as the injection module 223, and select the pulsed laser as the local oscillator light emission module 311, select a beam splitter with a transmission-reflectance ratio of 50:50 as the first beam splitting module 312 and the second beam splitting module 315, select the phase modulator as ...
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The invention discloses a quantum digital signature system for sending Gaussian signal based on sequence, the system comprises a sending end, a receiving end and a verification end, the receiving end comprises a first data processing module and a first Gaussian signal generation module which are connected with each other; the verification end comprises a second data processing module and a second Gaussian signal generation module which are connected with each other; the sending end comprises a Gaussian detection module and a third data processing module which are connected with each other; wherein the receiving end and the verification end are connected through a quantum channel, the verification end and the sending end are connected through a quantum channel, and the receiving end, the verification end and the sending end are connected through a classic channel. The equipment used by the system is the existing equipment in classical optical communication, so that the practicability is improved, the Trojan horse attack can be effectively resisted, and the signature efficiency of the long message is improved.
Description
technical field [0001] The invention relates to the field of quantum digital signatures, in particular to a quantum digital signature system and method for sending Gaussian signals based on sequences. Background technique [0002] Secret sharing is a communication task in which secret information is sent to multiple participants to manage together. Participants in the communication task will be assigned a part of the original information, but only a single participant or some participants cannot obtain the complete original information. Only All individuals together can obtain complete information. [0003] In cryptography, encryption, decryption and digital signature are two very important tasks. The encryption and decryption of information ensures the confidentiality of information, and the digital signature ensures the integrity of information, preventing information from being tampered with and repudiated. The realization of classical encryption and decryption and digi...
Claims
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IPC IPC(8): H04L9/32H04L9/08H04B10/85H04B10/70H04B10/50H04B10/63H04B10/61
CPCH04L9/3247H04L9/0858H04L9/3239H04B10/85H04B10/70H04B10/503H04B10/63H04B10/614Y02D30/70
Inventor 富尧李晨龙
Owner MATRICTIME DIGITAL TECH CO LTD