Quantum key distribution system, quantum key distribution method and device

A technology of quantum key distribution and quantum key negotiation, applied in the field of quantum keys, which can solve problems such as low security, unrecoverable keys, and easy leakage of user data.

Active Publication Date: 2019-04-12
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] This application provides a quantum key distribution system to solve the problems of low security in the existing key management method, inability to restore the key, and easy leakage of user data in the centralized management method

Method used

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  • Quantum key distribution system, quantum key distribution method and device
  • Quantum key distribution system, quantum key distribution method and device
  • Quantum key distribution system, quantum key distribution method and device

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Embodiment Construction

[0120] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0121] In this application, a quantum key distribution system, a quantum key distribution method, and a quantum key distribution device are provided. Each will be described in detail in the following examples.

[0122] The quantum key distribution system provided in this embodiment includes: a quantum security key management device, a quantum security key distribution device, a quantum security key service device, and a data device used as a source end and a destination end of a secure data transmission; The quantum...

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PUM

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Abstract

The present application discloses a quantum key distribution system, a quantum key distribution method and a device. Wherein, the system includes: quantum security key management equipment, quantum security key distribution equipment, quantum security key service equipment; quantum security key management equipment, used to split the system private key into At least two system sub-private keys, which are distributed to quantum-safe key distribution devices through quantum key agreement; quantum-safe key service devices, used to forward authorized private key acquisition requests to other quantum-safe key distribution devices; The quantum security key distribution device is used to obtain the identity-based authorization sub-private key from other quantum security key distribution devices through quantum key agreement, and use the threshold key sharing mechanism to reconstruct the identity-based authorization private key. Adopting the above-mentioned system can not only resist the risk of classic passwords being cracked, but also reduce the possibility of administrators maliciously leaking user data.

Description

technical field [0001] This application relates to quantum key technology, in particular to a quantum key distribution system. The present application also relates to a quantum key distribution method and a quantum key distribution device. Background technique [0002] With the development of computer and network technologies, systems that provide users with various services have emerged, for example, cloud computing systems that provide users with various services such as applications, data, and IT resources. In such a system, in order to ensure the security of the static data stored inside the system and the dynamic data generated during the process of providing services to users, it is usually necessary to use an encryption algorithm to encrypt the data. For example, in a cloud computing environment, there are two data encryption modes: an encryption mode based on certificate authentication, or an encryption mode using a cloud computing key management system. [0003] A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08H04L29/08
CPCH04L9/0855H04L63/062H04L9/0852H04L63/061H04L63/0823H04L9/0819
Inventor 付颖芳刘栓林高亚滨陈秀忠
Owner ALIBABA GRP HLDG LTD
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