Communication device, method and program to check the software execution permission.

A communication method: * a communication system including (a) a Java application program providing server device (18) that stores a Java application program for providing a number of functions, (b) a server device management (18) storing a data security descriptors SDF containing a permission data indicating a scope of rights that will be used by the Java application program, (c) a server device (13) providing a data descriptors Java ADF application that stores data descriptors Java application ADF indicating a storage location of the Java application program and storage location data security descriptors SDF, and * a communication device ( 16) running the Java application program, the method comprising: a) transmitting from the communication system to the communication device (16) of descriptor data ADF Java application; b) transmitting data (URL) indicating the storage location of the data security descriptor data SDF contained in Descriptor Description ADF from the communication device (16) to the communication system; (C) transmitting data security descriptors SDF from the communication system to the communication device (16) based on the data indicating the storage location of data security descriptors SDF; d) storing the security descriptor data SDF in the communication device (16); e) transmitting data indicating the storage location of the Java application program contained in the security descriptor data SDF from the communication device (16) to the communication system; f) transmission Java application program from the communication device to the communication device (16) based on data (URL) indicating the storage location of the Java application program; g) installing, in the communication device (16), the Java application program transmitted from the communication system to the communication device (16); in which h) the communication device (16) accesses the server existing management in the communication network and checks, before the Java application program, if data security descriptors SDF stored in the communication device ( 16) they are valid; and i) permits the Java application program is executed in the communication device (16) only when it is determined that data security descriptors SDF are considered valid on the basis of a verification result, wherein the program Java application is executed to provide a function in line with the scope of rights indicated by the permission data contained in descriptor data SDF stored in the security communication device (16).