Quantum optical network service fault recovery method and device based on key pool

Abstract

The invention discloses a quantum optical network service fault recovery method and device based on a key pool. The method comprises the steps of obtaining a service affected when a quantum network fault occurs; sorting the services according to the attribute information of the services; determining a service recovery threshold value according to the secret key capacity of the secret key pool andthe service characteristics; and recovering the ranked services according to the service recovery threshold. Implementation of the invention, sorting the influenced services according to the attributeinformation of the services; determining a service recovery threshold value according to the key capacity and the service characteristics of the key pool. The sorted services can be recovered to thethreshold value under the supplement of the protection path and the key pool, the survivability of more services is ensured, the service recovery threshold value fully utilizes the key of the key pool, the characteristics of services are considered, and therefore the method is adopted to recover the affected services, and the recovery efficiency is higher.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a key pool-based quantum optical network service failure recovery method and device. Background technique [0002] The communication market has higher and higher requirements for information security, and the demand is becoming more and more urgent. However, with the rapid improvement of computer computing power and the continuous deepening of quantum computer research, traditional cryptography is facing formidable challenges. Quantum cryptography is the product of the combination of quantum mechanics and cryptography. It will open up a broad application market with its leading technology, and will also put forward new requirements for the invulnerability of quantum communication networks; however, in quantum networks due to the link structure Due to the complexity, there will inevitably be failures, which will lead to the interruption of quantum keys, so that there will n...

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a quantum optical network service fault recovery method and device based on a key pool to solve the problem that the current service recovery method cannot guarantee the survivability of the service, and the key pool key resources are not sufficient problem of use

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