SCHUTZ VON MOBILCODE VOR BOESWILLIGEN HOSTS QUERVERWEISE AUF VERWANDTE ANMELDUNGEN

WO2004023313 A UPAB: 20060209 NOVELTY - The code (1313) has multiple obfuscated names that correspond to system symbolic names. An association is provided between the obfuscated names and encrypted forms of the corresponding system symbolic names. A static watermark added to the code determines authenticity of the code. A program execution environment has another association of the encrypted forms with information needed to resolve the system symbolic names. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (a) an improved class loader that loads a class in a program execution environment in a host computer system (b) a method of protecting a program that is executed in a host computer system from a host. USE - Used for implementing features in a cellular telephone. ADVANTAGE - The obfuscated names and the static watermark provide better protection for the mobile code against malicious hosts.