Electronic locking system based on random key

Abstract

The invention discloses an electronic locking system based on a random key. The electronic locking system comprises an electronic key and an electronic lock. According to the electronic locking system, an identity code of the electronic lock is set, and the electronic key is utilized for sending a matched address code F to the electronic lock; after receiving the matched address code F, the electronic lock compares an own address code F with the received matched address code F; if the own address code F and the received matched address code F are consistent, an MCU microprocessor of the electronic lock intercepts and captures an own random key R and an own key A, performs encrypted calculation according to a preset algorithm to generate a verification code C for temporary storage, and sends the intercepted and captured random key R to the electronic key; after receiving the random key R and the matched key A, the electronic key performs encrypted calculation according to the same algorithm adopted by the electronic lock to generate a verification code D, and sends the verification D to the electronic lock; the electronic lock compares the received verification code D with the temporarily stored verification code C; if the verification code D and the verification code C are consistent, the electronic lock is opened.

Description

technical field [0001] The invention relates to the technical field of electronic locks, in particular to a remote control electronic lock. Background technique [0002] Remote control electronic locks mainly adopt fixed code or rolling code control technology, which are used in automobiles, rolling doors, home doors, safes, etc. The code received by the electronic lock with fixed code control technology is fixed each time, and the capture and copy are effective, but the security performance is poor. The code received by the remote control electronic lock of the rolling code control technology scrolls and changes each time, and the security performance is high. According to the principle of rolling code, the key is the core security of the rolling code system. With the development of chip decryption technology, in the same batch of remote control electronic lock products, once the key has a slight pattern to be found, the same batch of remote control electronic lock product...

AI Technical Summary

Problems solved by technology

Illegal crackers use chip decryption technology to obtain the program and algorithm. The random code sent by the electronic lock can be calculated from the obtained program to the next random code. The fixed ID number of the electronic key participates in the encryption operation and is exposed to the public environment. Once intercepted, then This kind of electronic lock with random code control technology has major security risks

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