LEA Smart doorlock system using for smartphone and LEA

摘要

The present invention relates to a smart door lock device, and in particular, a key signal of a Bluetooth module provided in a smart phone or a smart phone application installed in a smart phone is encrypted using LEA (Light Encreption Algorism) to lock the door lock for a registered user. It relates to a method of controlling a smart door lock device using a smart phone to release and an LEA. Conventionally, the door lock device has a problem that a third party can easily obtain it by a method such as a hidden camera or fingerprint trace recognition, and the present invention proposed to improve this has a smart door lock device 200 and a user''s smartphone within a certain distance. Step (S10) of switching to the operation standby state (wake up) when (100) is adjacent; In the CPU 110 of the smartphone 100, switching the Bluetooth module to ON (S20) or executing the smartphone application 120 (S21); Encrypting the key signal through the LEA (Light Encreption Algorism) encryption module 130 (S30); Transmitting the encrypted key signal through the Bluetooth module 140 or the RF module 150 or the Internet (S40); Receiving the encrypted key signal through the receiving-side Bluetooth module 140 or the receiving-side RF module 150 or the Internet (S50); Decrypting the key signal through the LEA (Light Encreption Algorism) decryption module 230 (S60); Determining whether the key signal is a registered user in the door lock control unit 240 (S70); In the case of a registered user, the step of unlocking the door by operating the door opening and closing driving unit 250 (S80); proceeds sequentially, and the LEA (Light Encreption Algorism) encryption module 130 applies LEA in the encryption process We propose a method for controlling a smart door lock device using a smart phone and LEA, characterized in that the key signal of the smartphone is randomly rearranged and the password rearranged in the decryption process is restored to its original state. Therefore, in the present invention, the control method of a smart door lock device using a smart phone and LEA operates the door lock using a smart phone that the user always carries, so the primary authentication applied to the smart phone is applied and a separate authentication procedure is omitted. This greatly improves the convenience of door lock operation. In addition, by selectively operating the Bluetooth module and smartphone application, operation control is easy, and the LEA (Light Encreption Algorism) encryption module is applied to fundamentally block information leakage through Bluetooth or RF scanning equipment. have.