Strong physical unclonable function of fuzzy input and output

Abstract

The invention is suitable for the technical field of information safety and integrated circuits, and provides a strong physical unclonable function of fuzzy input and output. The strong physical unclonable function comprises an input fuzzy module and an output fuzzy module, wherein the input fuzzy module is used for converting input excitation through a first random characteristic circuit and inputting the converted input excitation to the physical unclonable function; and the output fuzzy module is used for converting the output response of the physical unclonable function through a second random characteristic circuit and outputting the converted output response of the physical unclonable function to outside. The physical structure of the strong physical unclonable function of fuzzy input and output is that the strong physical unclonable functions and a weak physical unclonable function are integrated on a three-dimensional integrated circuit, wherein the weak physical unclonable function is positioned between two layers of strong physical unclonable functions. Therefore, the strong physical unclonable function can effectively resist modeling attack while the randomness and the stability of the strong physical unclonable function are guaranteed.

Description

technical field [0001] The invention relates to the field of information security and the field of integrated circuits, in particular to a strong physical unclonable function of fuzzy input and output. Background technique [0002] With the widespread use of electronic devices, security and privacy have become important issues. The key that is considered to be permanently stored and unknown to the attacker is the core of traditional cryptography. However, many attack methods have been able to crack the key, which makes the key insufficient to ensure security. In order to effectively solve the security problem, the Physical Unclonable Function (Physical Unclonable Function, PUF) came into being, which is a hardware component that can deal with the security problem more effectively. [0003] The PUF uses the inevitable process deviation during chip manufacturing to generate a specific input-output pair, also known as a challenge-response pair (Challenge-ResponsePair, CRP). E...

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Problems solved by technology

[0010] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

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