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Hardware Trojans pose a difficult threat to hardware systems due to the difficulty in their identification. In many cases, the differences observed between Trojan and Trusted chips can be very small. This research explored the feasibility of using low-precision test equipment in order to identify malicious modifications to circuits programmed to Field Programmable Gate Arrays (FPGAs). Examination...
Sequential linear decompressors are inherently efficient and attractive for compressing test cubes with many don't cares. The test cubes are encoded by solving a system of linear equations. In continuous decompression, typically a fixed number of free variables are used to encode each test cube in a “one-size-fits-all” manner. The non-pivot free variables used in Gaussian elimination are wasted when...
The paper deals with the problem of test data volume, decompressor hardware overhead and test application time of scan based circuits. Broadcast-based test compression techniques can reduce both the test data volume and test application time. Pattern overlapping test compression techniques are proven to be highly effective in the test data volume reduction and low decompressor hardware requirements...
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