کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
463012 | 696941 | 2009 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A security approach for off-chip memory in embedded microprocessor systems A security approach for off-chip memory in embedded microprocessor systems](/preview/png/463012.png)
This paper describes a complete off-chip memory security solution for embedded systems. Our security core is based on a one-time pad (OTP) encryption circuit and a CRC-based integrity checking module. These modules safeguard external memory used by embedded processors against a series of well-known attacks, including replay attacks, spoofing attacks and relocation attacks. Our implementation limits on-chip memory space overhead to less than 33% versus memory used by a standard microprocessor and reduces memory latency achieved by previous approaches by at least half. The performance loss for software execution with our solution is only 10% compared with a non-protected implementation. An FPGA prototype of our security core has been completed to validate our findings.
Journal: Microprocessors and Microsystems - Volume 33, Issue 1, February 2009, Pages 37–45