A METHOD AND SYSTEM FOR ENCRYPTING A PROGRAM STREAM KEY IN THE MOBILE MULTIMEDIA BROADCAST SERVICE

摘要

A method and system for encrypting a program stream key in the mobile multimedia broadcast service. The method includes: a multimedia broadcast platform sends a program stream key to a service platform via the connection between the platforms, the service platform judges and encrypts the program stream key using different program stream key encryption manner according to the particular mobile network of a service object, the service platform sends the encrypted program stream key to the multimedia broadcast platform via the connection between the platforms again. The system uses the method. By using the different program stream key encryption manner after the service platform judges the different service object, the method and system make the operators of the different mobile network only need to construct a set of a mobile phone TV service platform and the multimedia broadcast platform to provide the mobile phone TV service to the user of the different mobile network. The construction cost is reduced and the system maintenance is favorable.