Composite encryption method, door lock system and storage medium

Abstract

The invention discloses a composite encryption method, a door lock system and a storage medium. According to the method, a control end and a user end are paired by using a first user password, first encrypted information and second encrypted information, so that the control end and the user end obtain third encrypted information, and when the user end communicates with the control end subsequently, the second encrypted information and the third encrypted information are used for encrypting a communication process; and after the pairing is completed, the control end performs iteration processing on the third encrypted information to enable the third encrypted information to be in a dynamic change state, the user end generates and sends fourth encrypted information to the control end when performing encrypted communication with the control end by using the second encrypted information and the third encrypted information, and the control end updates the third encrypted information according to the fourth encrypted information. According to the composite encryption method, the door lock system and the storage medium disclosed by the invention, encrypted communication is performed through the dynamically updated third encryption information, so that the security is improved.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a compound encryption method, a door lock system and a storage medium. Background technique [0002] In a traditional door lock system, a relay is usually used to control the switch lock, that is, a simple switch value is used as an unlock signal to control the unlock. Usually, criminals can short-circuit the door-opening signal line to realize unlocking by dismantling or destroying the access control host to expose the door-opening signal line. Therefore, the traditional door lock system has a relatively large security risk. In addition, there is also a scheme that uses an encryption method to transmit the unlocking signal, but this scheme also has the possibility of being cracked by criminals in a short period of time. Difference. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior ...

AI Technical Summary

Problems solved by technology

Usually, criminals can short-circuit the door-opening signal line to unlock by removing or destroying the access control host to expose the door-opening signal line. Therefore, the traditional door lock system has great security risks.

In addition, there is also a scheme that uses an encryption method to transmit the unlocking signal, but this scheme also has the possibility of being cracked by criminals in a short period of time. Difference

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