Patent ID: 7685435
Filing Date: 2010-03-23
Classification: G06F

Abstract:
1. A method for developing a program which is to be installed in a system having an LSI device, the LSI device having a secure memory which includes an unrewritable area, the method comprising the steps of: providing another LSI device having the same structure as that of the LSI device; setting the provided LSI device to a development mode based on an inherent and permanent key information for the development mode, which is implemented in the unrewritable area of the LSI device in advance, so that the provided LSI device is used as a development LSI device, the development mode being different from a product operation mode employed at the times of program installation and product operation, the inherent and permanent key information for the development mode being different from an inherent and permanent key information for the product operation mode; and developing the program on the development LSI device.