COMPILER SYSTEM AND A METHOD OF COMPILING A SOURCE CODE INTO AN ENCRYPTED MACHINE LANGUAGE CODE

摘要

A compiler system including a compiler configured to compile a source code into a machine language code is presented, so that the machine language code is executable on a processing unit, wherein the processing unit comprises an internal register that is changing its state responsive to an execution of the machine language code. The compiler is configured to encrypt the machine language code based on an encryption function that depends on the state of the internal register.