Lightweight authentication equipment and an authentication method based on a feedback loop PUF

Abstract

The invention discloses lightweight authentication equipment based on a feedback loop PUF. The lightweight authentication equipment comprises an N-bit linear feedback shift register, an N-bit arbiterPUF module, an M-bit counter module, an eFuse-based feedback network module and an output D trigger module, Under the control of the clock period CLK, every time one clock period is passed, the N-bitlinear feedback shift register module outputs a new value, and the N-bit arbiter PUF module outputs a new response; and under the control of the clock 2 ^ M frequency division signal CLK _ 2 ^ M, a certain response of the N-bit arbiter PUF module is used as the final output Out of the output D trigger module. Authentication method based on device does not need to store a large number of excitations. According to the response pair, the flexibility on the existing machine learning attack is improved, and the advantages of low cost and high security are attractive to resource-limited equipment inan edge network.

Description

technical field [0001] The invention relates to the technical field of PUF authentication, in particular to a lightweight authentication device and an authentication method based on a feedback loop PUF. Background technique [0002] Fog computing is the extension of cloud computing to the edge of the network, characterized by a decentralized architecture. Fog computing covers a wide range of new applications such as real-time data processing, smart healthcare. [0003] Authentication is an essential security protocol in fog computing because it enhances mutual trust between devices in fog networks. In the prior art, efforts have been made to develop feasible low-cost authentication schemes to deal with resource-constrained edge devices. For example, lightweight symmetric-key encryption algorithms such as SPINS, TinySec, and LEAP+ are proposed and implemented in distributed sensor networks with small computational requirements. However, key management and communication ove...

AI Technical Summary

Problems solved by technology

Although these methods provide secure authentication at the hardware level, they are not feasible for large-scale edge devices because they require secure servers to store huge stimulus-response pairs (CRP)

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