Patent ID: 11941930
Assignee: PSDL
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. The door lock of claim 8, wherein the door lock management server that receives the first door packet from the reader is configured to decrypt the encrypted door recognition code by using a Master encryption key and the received door lock public encryption key (Pub_d), and
wherein the door lock management server is configured to further receive a first reader packet including an encrypted reader identification code and a reader public encryption key (Pub_rr) from the reader, in which the door lock management server receives the first reader packet before receiving the first door packet or simultaneously receives the first reader packet and the first door packet; and
decrypt the encrypted reader recognition code by using the server private encryption key (Priv_Server) and the received reader public encryption key (Pub_rr), and decrypt the encrypted door recognition code when it is determined that the decrypted reader recognition code matches a pre-stored reader recognition code.