Smart locks unlocking methods, mobile terminals, servers, and computer-readable storage media

A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations for unlocking smart locks, the operations comprising:

• receiving a digital key request for a digital key for unlocking a smart lock;
• in response to the digital key request, generating a biometric feature request for collecting biometric feature from a mobile device;
• sending the biometric feature request to the mobile device;
• receiving biometric feature corresponding to the biometric feature request from the mobile device;
• receiving identity information and a device identifier of the smart lock from a server;
• determining, based on the identity information, a matching biometric feature stored in a biometric feature database that matches the received biometric feature;
• verifying an identity of a user corresponding to the received biometric feature based on the matching biometric feature;
• identifying, after the identity of the user is verified, smart lock information corresponding to the device identifier from a smart lock database;
• generating a digital key for unlocking the smart lock based on the digital key request and the smart lock information;
• and
• sending the digital key to the mobile device.

A computer-implemented system for unlocking smart locks, comprising:

• one or more computers;
• and
• one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations comprising:
• receiving a digital key request for a digital key for unlocking a smart lock;
• in response to the digital key request, generating a biometric feature request for collecting biometric feature from a mobile device;
• sending the biometric feature request to the mobile device;
• receiving biometric feature corresponding to the biometric feature request from the mobile device;
• receiving identity information and a device identifier of the smart lock from a server;
• determining, based on the identity information, a matching biometric feature stored in a biometric feature database that matches the received biometric feature;
• verifying an identity of a user corresponding to the received biometric feature based on the matching biometric feature;
• identifying, after the identity of the user is verified, smart lock information corresponding to the device identifier from a smart lock database;
• generating a digital key for unlocking the smart lock based on the digital key request and the smart lock information;
• and
• sending the digital key to the mobile device.