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Encryption key updating method of intelligent door lock, system and computer storage medium

A technology for smart door locks and encryption keys, applied in transmission systems, digital transmission systems, and key distribution, can solve problems such as key insecurity, and achieve the effect of improving security

Inactive Publication Date: 2019-03-29
BEIJING QDING INTERCONNECTION TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention proposes an encryption key update method for smart door locks, by dynamically generating encryption keys at both ends of the smart door lock and the cloud, and only transmitting the encryption keys used to generate keys between the two. The key factor can solve the insecure and other problems of direct key transmission in the prior art

Method used

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  • Encryption key updating method of intelligent door lock, system and computer storage medium
  • Encryption key updating method of intelligent door lock, system and computer storage medium
  • Encryption key updating method of intelligent door lock, system and computer storage medium

Examples

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Embodiment 1

[0037] Please refer to figure 1 , this embodiment proposes a method for updating an encryption key of a smart door lock, which can be applied to updating the encryption key of a smart door lock and a cloud server. The update method can improve the transmission security of the communication data between the smart door lock and the cloud server, and the like. The update method will be described in detail below.

[0038] Step S10, the cloud server receives the key factor information sent from the smart door lock, and the key factor information includes the unique device serial number and the random sequence of the door lock.

[0039] In step S10, when the encryption key between the cloud server and the smart door lock needs to be updated, the smart door lock will send corresponding key factor information to the cloud server. Wherein, the key factor information may include a unique device serial number (SN, Serial Number) for identifying the identity of the smart door lock and a...

Embodiment 2

[0064] Please refer to image 3 , this embodiment proposes an encryption key updating system for a smart door lock, which can adopt the encryption key updating method for a smart door lock in the first embodiment above. The system includes a cloud server and at least one smart door lock, and the cloud server is communicatively connected with the smart door lock.

[0065] Specifically, the cloud server is used to receive key factor information sent from the smart door lock, and the key factor information includes a unique device serial number and a random sequence of the door lock.

[0066] The cloud server is further configured to judge the validity of the key factor information according to the device serial number. If it is determined to be valid, the cloud server obtains a corresponding cloud random sequence, and uses the cloud random sequence, the device serial number and the door lock random sequence to generate a cloud key according to a preset algorithm. The cloud ser...

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PUM

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Abstract

The invention discloses an encryption key updating method of an intelligent door lock, a system and a computer storage medium. The method comprises the steps of receiving secret key factor informationwhich is transmitted from the intelligent door lock, wherein the secret key factor information comprises a unique equipment sequence number and a door lock random sequence; determining validity of the secret key factor information according to the equipment sequence number, if validity is determined, acquiring a corresponding cloud random sequence and generating a cloud secret key; transmitting the cloud random sequence to the intelligent lock for generating a door lock end secret key; receiving a secret key confirming request of the intelligent door lock; and if the secret key confirming request is obtained by means of the cloud secret key, confirming secret key consistency and setting the secret key to the new encryption secret key. According to the encryption key updating method, through performing dynamic secret key generation at two ends according to a preset algorithm, direct secret key transmission between the intelligent door lock and cloud is prevented, thereby improving secret key safety of the intelligent door lock.

Description

technical field [0001] The present invention relates to the technical field of intelligent door locks, in particular to an encryption key updating method, system and computer storage medium of an intelligent door lock. Background technique [0002] In the current smart door lock system, the door opening password of the smart door lock is usually generated by the cloud server, and then sent to the door lock device to verify whether the password entered by the user is correct. During this communication process, the communication between the two All data needs to be encrypted and protected. [0003] However, the existing encryption key used for encryption is usually directly stored in the door lock device and the cloud, and its security still has certain flaws, that is, once the encryption key is maliciously intercepted by hackers, it will remain Obtain the communication data between the two, and then perform malicious actions such as tampering. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C9/00H04L9/08
CPCG07C9/00309G07C2009/005H04L9/0891
Inventor 孟宪军许小阳钟桂鑫
Owner BEIJING QDING INTERCONNECTION TECHNOLOGY CO LTD