Cable data interaction method and device for multiple objects and multiple scenes

The invention discloses a cable data interaction method and device for multiple objects and multiple scenes, and the method specifically comprises the steps: a reader transmits an identification request command to a power cable electronic tag, and receives an identification request response; the authentication data reader analyzes the request authentication response to obtain an authentication key; according to the authentication key, the authentication data reader performs bidirectional identity authentication on the power cable electronic tag; and based on a bidirectional identity authentication result, the authentication data reader performs data interaction with the power cable electronic tag by adopting a secure communication mechanism based on stream encryption. According to the data interaction scheme provided by the invention, a two-way identification mechanism and a secure communication mechanism based on stream encryption are realized, an unauthorized reader and a counterfeit tag are prevented from