Systems and methods for generation and use of short keys are disclosed. The systems and methods include the generation of a short key based on the location of a first device that requests the generation of the key. The short key is sent to the first device, which in turn communicates the short key to a second device, through a display, print receipt, direct communication, or other means. The short key is entered into the second device, which in turn communicates the entered short key to a server along with location information corresponding to the second device. The server authorizes communication between the first and second devices after it determines that the short key sent by the second device matches one of the keys active in a region corresponding to the location of the second device.