Abstract: The present application provides an unlocking solution. In this solution, after obtaining a digital key seed, a user mobile device can generate a digital key for multiple times by using the digital key seed and first check data corresponding to a current unlocking operation, and then send the digital key to a smart door lock for verification and unlocking. Because the digital key includes the first check data only corresponding to the current unlocking operation, an attacker cannot use the digital key to perform unlocking again even if the attacker obtains the digital key. In addition, because the digital key seed can be used for multiple times, a smart door lock server does not need to be connected each time to obtain the digital key. Therefore, both security and ease of use are satisfied.

Abstract: A routing processor implements a multi-stage prescriptive routing model engine based on harvest input data relating to the harvesting of crops at a plurality of locations by a plurality of combines and based on a harvest characteristic representing an attribute of the crops to be harvested by the combines. The multi-stage prescriptive routing model engine generates a combine routing program prescribing the movement of each combine between the locations and includes a demand stage configured to identify combine harvesting demand as a function of the harvest input data and the harvest characteristic and a scheduling stage configured to generate the combine routing program as a function of the harvesting demand.

Abstract: Techniques for generating and processing two-dimensional barcodes are described. One example method includes identifying original content to be encoded in a two-dimensional (2D) barcode structure; and generating a 2D barcode associated with the original content based on at least the 2D barcode structure and the original content, wherein the 2D barcode structure includes at least an identification field and a data field, and the identification field indicates one or more data elements in the data field.

Abstract: A computer-implemented method includes: obtaining, by an application client executing on a terminal, a display request; and controlling, based on the display request, a display screen of the terminal to simultaneously display a scanning region and a first identification code in an interface, in which the first identification code stores information corresponding to a user of the terminal, in which the scanning region displays a second identification code scanned by a camera of the terminal, and in which the second identification code is usable by the terminal to perform operations based on the second identification code.

Abstract: The present application provides an unlocking solution. In this solution, after obtaining a digital key seed, a user mobile device can generate a digital key for multiple times by using the digital key seed and first check data corresponding to a current unlocking operation, and then send the digital key to a smart door lock for verification and unlocking. Because the digital key includes the first check data only corresponding to the current unlocking operation, an attacker cannot use the digital key to perform unlocking again even if the attacker obtains the digital key. In addition, because the digital key seed can be used for multiple times, a smart door lock server does not need to be connected each time to obtain the digital key. Therefore, both security and ease of use are satisfied.

Abstract: Techniques for generating and processing two-dimensional barcodes are described. One example method includes identifying original content to be encoded in a two-dimensional (2D) barcode structure; and generating a 2D barcode associated with the original content based on at least the 2D barcode structure and the original content, wherein the 2D barcode structure includes at least an identification field and a data field, and the identification field indicates one or more data elements in the data field.

Abstract: The present specification discloses a service authorization method, apparatus and device.

Abstract: Techniques for generating and processing two-dimensional barcodes are described. One example method includes identifying original content to be encoded in a two-dimensional (2D) barcode structure; and generating a 2D barcode associated with the original content based on at least the 2D barcode structure and the original content, wherein the 2D barcode structure includes at least an identification field and a data field, and the identification field indicates one or more data elements in the data field.