METHOD, SYSTEM, AND APPARATUS FOR GENERATING KEY FOR INTER-DEVICE COMMUNICATION

Provided are a method, system and apparatus for generating a key for communication between devices. The method comprises: a first user equipment generating a first temporary identifier on the basis of a first key; the first user equipment sending a first request to a second user equipment, wherein the first request is used for establishing a communication connection between the first user equipment and the second user equipment, and comprises the first temporary identifier and a relay service code; and the first user equipment generating a shared key on the basis of a second key and the relay service code, wherein the shared key is used for protecting the communication connection between the first user equipment and the second user equipment. By means of the method, system and apparatus for generating a key for communication between devices in the embodiments of the present application, a secure communication connection is dynamically established between user equipments by means of generating a key for communication between devices.