Management of license information for a communication terminal

摘要

The method involves releasing the electronic content when the existence of the valid license information in a security module of a communication terminal is determined. The electronic content is discarded when the deletion message is received in the communication terminal where the deletion message is invalid license information. The installation message is sent and stored in the communication terminal. The authentication information of the cryptographic key is produced with the security module. Independent claims are included for the following: (1) computer program for controlling release of electronic content; and (2) cellular radio system.