Computer challenge system for presenting images to users corresponding to correct or incorrect real-world properties to limit access of computer resources to intended human users

A system for securing a computer resource against unauthorized access by authenticating a user device attempting to access the computer resource, the system comprising:

• a memory;
• and
• a processing device, operatively coupled to the memory, to:
• determine a three-dimensional (3D) model of a virtual scene, wherein elements of the virtual scene are selected consistent with human expectations;
• generate a data record for the 3D model, wherein the data record includes references to a pre-determined set of human expectations about the virtual scene;
• generate a two-dimensional (2D) image of the virtual scene by a challenge generator,
• wherein the 2D image comprises a view of dice from a virtual camera position, and
• wherein the dice are oriented such that a sum of values represented on top faces of the dice equals to an input parameter selected by the challenge generator;
• send a challenge data structure to the user device, wherein the challenge data structure includes the 2D image;
• obtain a user response representing a user-provided set of expectations about the virtual scene;
• determine whether the user-provided set of expectations is consistent with the pre-determined set of human expectations;
• and
• provide access to the computer resource for the user device based on whether the user-provided set of expectations is consistent with the pre-determined set of human expectations and the user response is equal to the input parameter selected by the challenge generator.

A non-transitory computer-readable storage medium for securing a computer resource against unauthorized access by authenticating a user device attempting to access the computer resource, the non-transitory computer-readable storage medium including instructions that, when executed by a processing device, cause the processing device to:

• determine a three-dimensional (3D) model of a virtual scene, wherein elements of the virtual scene are selected consistent with human expectations;
• generate a data record for the 3D model, wherein the data record includes references to a pre-determined set of human expectations about the virtual scene;
• generate a two-dimensional (2D) image of the virtual scene by a challenge generator,
• wherein the 2D image comprises a view of dice from a virtual camera position, and
• wherein the dice are oriented such that a sum of values represented on top faces of the dice equals to an input parameter selected by the challenge generator;
• send a challenge data structure to the user device, wherein the challenge data structure includes the 2D image;
• obtain a user response representing a user-provided set of expectations about the virtual scene;
• determine whether the user-provided set of expectations is consistent with the pre-determined set of human expectations;
• and
• provide access to the computer resource for the user device based on whether the user-provided set of expectations is consistent with the pre-determined set of human expectations and the user response is equal to the input parameter selected by the challenge generator.