Multi-group quantum key cooperation method and system
A technology of quantum key and key management system, which is applied in the field of a method and system for the collaborative use of multiple groups of keys, to achieve the effects of improving security, increasing randomness, and increasing difficulty
Active Publication Date: 2022-03-01
CAS QUANTUM NETWORK CO LTD
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Such a solution also has problems such as how the two parties in the communication determine the key used by the business.
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[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.
[0049] like figure 1 As shown, the first aspect of the present invention proposes a multi-group quantum key coordination method, and the method includes the following steps:
[0050] 1. The cryptographic module and the key management system obtain the same quantum key group from the quantum key distribution system (QKD), and generate the key group seri...
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The invention provides a multi-group quantum key cooperation method and system, and the method comprises the steps: obtaining a quantum key group through a password module and a key management system, and generating a key group serial number S; the password service client obtains the S of the password module and a key cooperation parameter SF, generates information M1 and sends the information M1 to the key management system; the key management system analyzes the message M1 to obtain a key position P and a key KP, generates a random number RS, and generates information M2 which is sent to the password module by the password service client; the password module analyzes the information M2 to obtain a key position P, a key KP2 and an RS1, generates a random number RC and generates information M3 together with the RS1, and the information M3 is sent to the password management system by the password service client; the key management system analyzes and verifies the information M3 to obtain RC1 and RS2, calculates a transmission key, and establishes a password index based on (S, P); the service program client calls the password encryption and decryption service of the password module through the password service client, and the service program server calls the encryption and decryption service of the password management system.
Description
technical field [0001] The present invention relates to the field of using quantum keys, in particular to a method and system for coordinated use of multiple sets of keys. Background technique [0002] Traditional cryptographic encryption techniques are divided into symmetric algorithms and asymmetric algorithms. With the rapid development of quantum technology, the difficulty of breaking traditional asymmetric algorithms has been greatly reduced. According to NIST official documents, the asymmetric algorithm RSA and elliptic algorithm have been listed as unsafe algorithms. [0003] For the post-quantum era, relying on quantum key distribution (QKD) technology combined with the existing symmetric encryption algorithm can increase the difficulty of cracking the system and improve the security of data transmission. However, if the symmetric key is used for a long time, the risk of cracking it is relatively high [0004] At present, the quantum key distribution speed of quant...
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IPC IPC(8): H04L9/08
CPCH04L9/0852H04L9/0869H04L63/0435Y04S40/20
Inventor 王家勇张雪松杨勇华李晋王涛李淼
Owner CAS QUANTUM NETWORK CO LTD