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A circuit, electronic device and implementation method of clamping inverter puf

An inverter and clamping technology, which is applied in the field of electronic devices and clamped inverter PUF circuits, can solve problems such as poor circuit stability, and achieve the effects of low cost, low power consumption, and data theft prevention.

Active Publication Date: 2021-09-17
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the present invention provides a circuit, electronic device and implementation method of a clamping inverter PUF, which solves the technical problem of poor stability of the clamping inverter PUF circuit in the prior art

Method used

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  • A circuit, electronic device and implementation method of clamping inverter puf
  • A circuit, electronic device and implementation method of clamping inverter puf
  • A circuit, electronic device and implementation method of clamping inverter puf

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0027] Such as figure 1 As shown: this embodiment discloses a circuit of clamping inverter PUF, including linear feedback shift registers, PUF cores and output enhancement verification devices connected in series, and the PUF cores include sequentially connected first-stage inverters The phase group, the second-stage inverter group and the third-stage inverter group, the first-stage inverter group and the second-stage inverter group all include M parallel inverter blocks, and each inverter block consists of 2 multiplexers and 2 N an inverter, the third-stage inverter group includes several parallel inverters, the output enhancement verification device includes an output stage and a fourth stag...

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Abstract

The invention discloses a circuit, an electronic device and a realization method of a clamping inverter PUF. The first-stage inverter group, the second-stage inverter group, and the third-stage inverter group, the first-stage inverter group and the second-stage inverter group each include M parallel inverter blocks, and the inverting block consists of 2 multiplexers and 2 N an inverter, the third-stage inverter group includes several parallel inverters, the output enhancement verification device includes an output stage and a fourth stage arranged in parallel, the output stage includes two parallel inverters, and the inverter The XOR gate is connected, the fourth stage includes an inverter, and the linear feedback shift register is a 2*M*N bit linear feedback shift register. In the present invention, each inverter has a different voltage trip point V trip , resulting in nonlinearly dependent responses that are difficult to simulate, thereby enhancing the Strong‑PUF stability.

Description

technical field [0001] The invention relates to the field of anti-counterfeiting circuits, in particular to a circuit, an electronic device and a realization method of a clamp inverter PUF. Background technique [0002] After more than a decade of development, silicon's Physically Unclonable Function (PUF) has gained a firm foothold as a popular security primitive with potential development potential in cryptographic key generation and chip authentication. And chip verification has potential development potential. From the perspective of responding to access restrictions and modeling complexity, PUFs can be roughly divided into two categories: weak PUFs and strong PUFs. Weak PUFs have only a linear or polynomial stimulus-response pair (CRP) space, while strong PUFs possess an exponential number of unique CRPs. From an application point of view, weak PUFs are useful for the generation of shared keys in lightweight systems, while strong PUFs are more suitable for chip authen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/87G06F21/60G06F21/88H04L9/00H04L9/32
CPCG06F21/602G06F21/87G06F21/88H04L9/002H04L9/3278
Inventor 曹元葛惟唯
Owner HOHAI UNIV CHANGZHOU