Control system for an electronic lock and operation method of the same

An operation method of a control system for an electronic lock, the control system including a control module, the control module being configured to communicate with a portable device for receiving an unlock request therefrom, the unlock request including a digital signature and a request identifier, the control module including a processing unit and a storage that is electrically connected to the processing unit, the processing unit being electrically connected to the electronic lock, the storage storing a key and a registered identifier, the storage further storing plural sets of specification-verifying data respectively for verifying a plurality of communication specifications, and a plurality of reference codes that correspond respectively to the plurality of communication specifications, the plurality of communication specifications being related respectively to different types of data format, the electronic lock being mounted on a door and having a locked state that prevents the door from being opened and an unlocked state that allows the door to be opened, said operation method comprising, by the processing unit:

• in response to receipt of the unlock request, verifying the digital signature included in the unlock request using the key stored in the storage;
• in response to successfully verifying the digital signature, determining whether the request identifier included in the unlock request matches the registered identifier stored in the storage;
• in response to determining that the request identifier matches the registered identifier, controlling the electronic lock to switch from the locked state to the unlocked state;
• and
• before receiving the unlock request from the portable device, selecting, by the processing unit, one of the plurality of communication specifications, and outputting one of the plurality of reference codes that corresponds to the one of the plurality of communication specifications thus selected,
• wherein verifying the digital signature includes, in response to receipt of the unlock request, first determining whether a type of data format of the unlock request matches the one of the plurality of communication specification thus selected based on a corresponding one of the plural sets of specification-verifying data, and then verifying the digital signature using the key in response to determining that the type of data format of the unlock request matches the one of the plurality of communication specifications thus selected.