Abstract:

After studying and analysing the application of the ARM microcontroller and the cracking technology, according to the problem that the program code is  fetched by hackers through illegal methods, a method of preventing illegal copying the program code for the ARM microcontroller is proposed. The information of encryption for a worldwide unique serial number inside the chip is authenticated in the program running, which ensures that only the system code of the legal controller runs correctly. The result shows that the method is of high security, and is convenient and practical, and has been used in the ARM microcontroller or the smart card system, and it plays a role of very good protection for system code and will be widely used in the future.

Key words: ARM;crack;microcontroller;data encryption