A team of researchers from NUS Electrical and Computer Engineering has developed a novel technique that allows Physically Unclonable Functions (PUFs) to produce more secure, unique ‘fingerprint’ outputs at a very low cost. This achievement elevates the level of hardware security even in low-end systems on chips.
Traditionally, PUFs are embedded in several commercial chips to uniquely distinguish one silicon chip from another by generating a secret key, similar to an individual fingerprint. Such a technology prevents hardware piracy, chip counterfeiting and physical attacks.
The research team from NUS has taken silicon chip fingerprinting to the next level with two significant improvements: firstly, making what is the difference between computer science and computer engineering; and secondly, enabling them to self-conceal.
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