Abstract
Physically unclonable function (PUF), a hardware security module, generates a unique response for each challenge by embodying a hardware feature into the computation. In the proposed Schmitt trigger(ST)-based PUF, the response is a function of circuit-based two different feature; triggering nature of ST generates a defined saturation level for changing input, and delay rises through cascading structure of STs. Multi-feature-based PUF sustains better unclonability and retains average reliability 99.725% with temperature variation, 99.86 with supply variation, and average uniqueness 47%. Another part of work is to enhance the response rate; rising and falling input sample individually generates five responses for rising and five responses for falling input. The proposed ST-PUF can generate ten numbers of 32-bit responses in one input period, and it enhances response generation rate by 10 times.
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Kumar, A., Mishra, R.S. (2019). Challenge-Response Pair (CRP) Generator Using Schmitt Trigger Physical Unclonable Function. In: Mandal, J., Bhattacharyya, D., Auluck, N. (eds) Advanced Computing and Communication Technologies. Advances in Intelligent Systems and Computing, vol 702. Springer, Singapore. https://doi.org/10.1007/978-981-13-0680-8_20
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DOI: https://doi.org/10.1007/978-981-13-0680-8_20
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