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Smart door lock and wireless communication original data encryption and decryption method thereof

A smart door lock, encryption and decryption technology, applied to instruments, time registers, single input/output registers, etc., can solve problems such as easy interception, cracking, and frequent wireless transmission of data

Inactive Publication Date: 2019-07-02
广东必达保安系统有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] Door locks are products related to the security field. In the past, door locks were stand-alone versions, and data transmission was completed internally. There was no problem of intercepting data or data insecurity. However, with the rapid development of the Internet of Things, door locks use The way to transmit data wirelessly will become more and more frequent
If the wireless transmission data is not encrypted or fixed encryption method will be easily intercepted and cracked

Method used

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  • Smart door lock and wireless communication original data encryption and decryption method thereof
  • Smart door lock and wireless communication original data encryption and decryption method thereof
  • Smart door lock and wireless communication original data encryption and decryption method thereof

Examples

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] see figure 1 As shown, an intelligent door lock includes a control circuit and a motor drive circuit. The control circuit includes a power supply circuit, a single-chip integrated circuit, a BLE communication integrated circuit, an encryption and decryption circuit, a storage circuit, an NB-IOT communication integrated circuit, and an AD conversion The circuit, the power circuit, the BLE communication integrated circuit, the encryption and decryption circuit, the storage circuit, the NB-IOT communication integrated circuit, the AD conversion circuit and the motor drive circuit are respectively electrically connected to the single-chip integrated circuit.

[0023] It also includes a front lock body panel and a rear lock body panel. The single-chip integrated circuit includes a front single-chip microcomputer chip and a rear single-chip microcomput...

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Abstract

The invention relates to a smart door lock and a wireless communication original data encryption and decryption method thereof. The encryption process is as follows: step one, using a Bluetooth name of a smart door lock as a basic KEY of the AES128; step two, acquiring a random key A from the door lock for each communication between a WeChat mini program and the smart door lock and carrying out operation on the key A and the basic KEY to generate KEY1; step there, generating a binding random key B under the condition of successful binding of the WeChat mini program with the door lock, storingthe key B by the smart door lock and a server respectively, carrying out operation on the key B and the KEY1 to generate a KEY2; and step four, with the KEY 2, carrying out AES128 encryption on an original text by using an encryption chip to obtain the ciphertext data. The communication data of wireless data communication between the smart door lock and the WeChat mini program are encrypted to form ciphertext data; the ciphertext data are generated by the basic KEY, communication random encryption key, and binding random encryption key based on a series of operations; and thus decryption of the data is prevented even when the data are intercepted.

Description

technical field [0001] The invention relates to an intelligent door lock, in particular to an intelligent door lock and a method for encrypting and decrypting original text data of wireless communication thereof. Background technique [0002] Door locks are products related to the security field. In the past, door locks were stand-alone versions, and data transmission was completed internally. There was no problem of intercepting data or data insecurity. However, with the rapid development of the Internet of Things, door locks use The way to transmit data wirelessly will become more and more frequent. If the wireless transmission data is not encrypted or fixed encryption method will be easily intercepted and cracked. Contents of the invention [0003] The object of the present invention is to provide an intelligent door lock with simple and reasonable structure, and the communication data is not easy to be intercepted and cracked, and its wireless communication original d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C9/00
CPCG07C9/00309G07C9/00817G07C2009/00825
Inventor 林良伟冯纯枝任武
Owner 广东必达保安系统有限公司
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