High-security and high-efficiency quantum key service method and system thereof

Abstract

The invention provides a high-security and high-efficiency quantum key service method, which comprises the following steps that: a first server acquires a certain number of exclusive-or associated slices as a slice set, selects m associated exclusive-or values in m slices every time and sends the m associated exclusive-or values to a second server; the second server obtains a corresponding quantum key group, provides a random number group for the client, creates a corresponding service association, performs XOR on corresponding m related exclusive-or values and m corresponding quantum key groups according to a service request, and then performs Hash operation to obtain a key group; and the key packet is encrypted by using the random number packet of the client, and the key packet is sent to the client. The invention further provides a high-security and high-efficiency quantum key service system, which comprises the quantum key service device and the flow service device which are used for implementing the method. The method can solve the problem of large-scale application of quantum key distribution, and has a good application prospect in the field of quantum security cloud services.

Description

technical field [0001] The invention relates to the technical field of quantum key distribution services, in particular to a highly secure and efficient quantum key service method and system. Background technique [0002] Key distribution or negotiation is a key technology in a secure communication system. The security of the key agreement based on classical cryptographic algorithms is based on the security of computational complexity, and does not have quantum security; while using quantum keys The key agreement method of the distribution network faces a bottleneck in scale application, that is, on the one hand, the quantum key distribution network is a single-hop forwarding trusted relay network, and there is a real-time interconnection bottleneck; on the other hand, the quantum key distribution network is independent of The infrastructure of the Internet lacks a seamless interface between the two. In order to solve the above problems, the function virtualization technolo...

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Problems solved by technology

[0002] Key distribution or negotiation is a key technology in a secure communication system. The security of the key agreement based on classical cryptographic algorithms is based on the security of computational complexity, and does not have quantum security; while using quantum keys The key agreement method of the distribution network faces a b

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