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Published in:
2014 | OriginalPaper | Chapter
3. Microprocessors and Microcontrollers Security
Author : Chris Shire
Published in: Secure Smart Embedded Devices, Platforms and Applications
Publisher: Springer New York
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Abstract
This chapter will consider the chip architectures used in embedded security; how they have evolved over the past three decades, the current designs, and the future trends. The chapter will consider the evolution of the microcontroller Central Processing Units (CPU) cores such as the 8051, 6805. It will look at the wide range of innovative and reduced instruction set designs, including popular off-the-shelf microcontroller designs, microprocessors, and digital signal processors. It will also consider other reduced instruction set designs, with reference to known attacks and options for protection. It will look at the vulnerability of functions within the chips such as memories and interfaces, and possible enhancements. Further security measures for different memory types will be reviewed. Enhanced security concepts using defensive designs, anti-tampering measures, and other hardware protection are discussed.