Key refreshing system and method in quantum secret communication system

A quantum security communication and quantum communication technology, which is applied in the field of key refresh system, can solve the problems of key pool key reduction, user inconvenience, etc., and achieve the effect of improving security and service life

Pending Publication Date: 2022-04-15
RUBAN QUANTUM TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] 2. In the existing technology, after the symmetric key pool has been used for many times, the used keys are no longer used, res

Method used

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  • Key refreshing system and method in quantum secret communication system
  • Key refreshing system and method in quantum secret communication system

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[0048] In order to further explain the embodiments, the present invention provides a part of the present invention, which is directed to the embodiment, and can explain the operation principle of the embodiment, and cooperate with the description of the specification. These include those skilled in the art will understand other possible embodiments and the advantages of the present invention, and the components in the figures are not drawn to scale, and similar components symbols are often used to represent similar components.

[0049] According to an embodiment of the present invention, a key refresh system and method in a quantum secure communication system are provided.

[0050] The present invention is further illustrated in conjunction with the accompanying drawings and specific embodiments, such as figure 1 As shown in one embodiment of the present invention, a key refresh system in a quantum secure communication system is provided, including quantum communication service st...

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Abstract

The invention discloses a secret key refreshing system and method in a quantum secret communication system, the system comprises a first quantum communication service station, a second quantum communication service station and quantum secret communication clients, and the quantum secret communication clients comprise a common client and a secret key refreshing client. Near field communication can be carried out between the common user side and the key refreshing user side, the common user side is equipped with a common quantum key card, and the key refreshing user side is equipped with a key refreshing quantum key card. The method has the beneficial effects that a new symmetric key pool can be calculated according to the key refreshing parameter by combining the symmetric key pool and the key refreshing parameter obtained from the key refreshing user side, so that under the extreme condition that the symmetric key pool in a certain quantum key card is cracked, the key refreshing parameter cannot be obtained by an enemy, and the key refreshing parameter cannot be obtained by the enemy; and the key pool of the quantum key card for backup cannot be cracked.

Description

technical field [0001] The invention relates to the field of quantum secure communication, in particular to a key refresh system and method in a quantum secure communication system. Background technique [0002] The trend of economic globalization has become unstoppable. Tens of billions of information flow out on the Internet, just like humans have built a virtualized world in storage devices, where privacy and knowledge are concentrated. And this information, like resources in the real world, has intangible value. [0003] At present, in addition to hackers who may steal your information, existing messaging vendors can also check your communication information at any time. Therefore, for individuals or organizations, in order to ensure that their information is not stolen, they must hold the key in their own hands to ensure the security of their own information, which is crucial to key management. Traditional encryption methods mainly rely on asymmetric cryptosystems. T...

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Application Information

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IPC IPC(8): H04L9/08H04L9/32H04L9/40
Inventor 富尧钟一民杨羽成
Owner RUBAN QUANTUM TECH CO LTD
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