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A key service method and device without central control

A service method and centrally managed technology, applied to secure communication devices and key distribution, can solve problems such as quantum security and key management security problems, achieve good application prospects, and solve management security problems.

Active Publication Date: 2022-05-31
成都量安区块链科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Key distribution or negotiation is a key security technology in a secure communication system. The security of key negotiation based on classical cryptographic algorithms is based on the security of computational complexity, not quantum security; and, the centralized The key service management system needs to store and manage the user keys of all users, and there are key management security problems

Method used

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  • A key service method and device without central control
  • A key service method and device without central control
  • A key service method and device without central control

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Embodiment Construction

[0024] In a possible design, in the above embodiment, it can also include: the client U and the client V first respectively

[0029] In a possible design, on the basis of any one of the above-mentioned embodiments, it can also include: the client and the related

[0032] The client or client device in any of the above embodiments includes but is not limited to being applied to a portable smart device

[0033] Those skilled in the art will appreciate that the embodiments of the present invention may be provided as a method, an apparatus (or system), or a computer

[0034] The present invention is directed to methods, apparatus (or systems), and computer program products according to embodiments of the present invention.

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PUM

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Abstract

The present invention provides a key service method without central control, including: the client applies to the server for user key grouping and requests key service; the server obtains the associated XOR value, and calculates the associated XOR value and the random number grouping of the server The XOR value with the target user key group of the client is sent to another server; the other server calculates the XOR value, the XOR value of the associated random number group and a user key group of another client, and sends it to the client terminal; the client calculates the XOR value of the received XOR value and the corresponding user key group, and obtains the target user key group. The present invention also provides a key service device without central management and control, including a client device and a server device for realizing the above method. The invention can solve the management security problem of the centralized key service system, and has a good application prospect in the field of quantum security cloud services.

Description

A key service method and device without central management and control technical field The present invention relates to the technical field of key distribution / negotiation, in particular to a key service method without central management and control with device. Background technique [0002] Key distribution or negotiation is a key security technology in a secure communication system, usually based on classical ciphers. The security of the algorithm's key agreement is based on the security of computational complexity, not quantum security; and, centralized The key service management system needs to store and manage the user keys of all users, so there is a security problem in key management. SUMMARY OF THE INVENTION In order to solve the problems existing in the key distribution and service technology in the background technology, the present invention provides a The centrally managed key service method, including: the client applies to the server and obtains the u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08
CPCH04L9/0819H04L9/0852H04L9/0869H04L9/0894
Inventor 陈晖
Owner 成都量安区块链科技有限公司