Protecting system for data used by java applications

摘要

The invention relates to a method for protecting data used by Java applications and a device using the method. The writer of a Java application adds to its attribute table an attribute signifying the need to protect the data used by the application. When the application is loaded into the user's device, the table with its attributes is also loaded. The operating system of the device has an extension related to the Java storage engine, which implements the data protection if the storage engine has found a protection attribute during the storing of data. The implementation of the protection can be based e.g. on encryption or on inhibiting access to a certain memory range from all other programs than the Java application in question. The access of a user of a Java application to data which are intended to be kept protected is made remarkably more difficult. The protection is implemented without changing the standardized interfaces of the Java platform.