High-steady-state multi-port PUF (Poly Urethane Foam) circuit

A multi-port, steady-state technology, applied in logic circuits, electrical components, pulse technology, etc., can solve the problems that the output results of multi-port PUF circuits are susceptible to noise interference, poor chip safety performance, low reliability and accuracy, etc. , to achieve the effects of avoiding frequent access, saving time, high reliability and stability

Active Publication Date: 2012-10-03
HANGZHOU HANGUANG ILLUMINATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, if the above-mentioned PUF circuit unit is applied to a multi-port PUF circuit, the noise margin of the PUF circuit unit will become smaller and smaller as the number of ports increases, so that the noise margin of the

Method used

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  • High-steady-state multi-port PUF (Poly Urethane Foam) circuit
  • High-steady-state multi-port PUF (Poly Urethane Foam) circuit

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Embodiment

[0034] Embodiment: A high-stable multi-port PUF circuit in this embodiment has four ports, that is, the PUF circuit unit array 2 includes four PUF circuit units 21, and we obtain a 256-bit four-port PUF circuit. Such as Figure 5 As shown, a 256-bit four-port PUF circuit includes a decoding circuit module 1, a PUF circuit unit array 2, a sense amplifier 3, a selector 4, a latch 5, a timing control circuit module 7 and a FIFO output circuit unit 6, The decoding circuit module 1 is connected to the PUF circuit unit array 2, the PUF circuit unit array 2 is connected to the sense amplifier 3, the sense amplifier 3 is connected to the selector 4, the selector 4 is connected to the latch 5, and the latch 5 is connected to the FIFO output The circuit 6 units are connected, and the timing control circuit module 7 is respectively connected with the decoding circuit module 1, the PUF circuit unit array 2, the sense amplifier 3, the selector 4 and the latch 5, and the PUF circuit unit ar...

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Abstract

The invention discloses a high-steady-state multi-port PUF (Poly Urethane Foam) circuit comprising a decoding circuit module, a PUF circuit unit array, a sense amplifier, a selector, a latch, a time sequence control circuit module and an FIFO (First Input First Output) circuit unit, wherein the decoding circuit module is connected with the PUF circuit unit array which is connected with the sense amplifier, the sense amplifier is connected with the selector which is connected with the latch, the latch is connected with the FIFO circuit unit, and the time sequence control circuit module is respectively connected with the decoding circuit module, the PUF circuit unit array, the sense amplifier, the selector and the latch, and the PUF circuit unit array comprises at least two PUF circuit units. The high-steady-state multi-port PUF circuit has the advantages that a plurality of keys are output in one access, the frequent visit of the PUF circuit can be avoided, the time is saved, and the circuit power consumption is lowered.

Description

technical field [0001] The invention relates to the technical field of chip PUF anti-counterfeiting, in particular to a high-steady-state multi-port PUF circuit. Background technique [0002] The Physical Unclonable Functions (PUF) proposed by Pappu in "Physical One-Way Functions" in March 2001 is unique and unclonable, and can be widely used as identity authentication and anti-counterfeiting means. The use of PUF technology on integrated chips was first proposed by researchers such as Gassend of the Massachusetts Institute of Technology. PUF technology is a "biological feature" identification technology in the field of chips, which can also be called "chip DNA" technology. It uses PUF circuits to extract process deviations (including oxide layer thickness, W / L And random ion doping and other factors), generate an infinite number of unique keys, these keys are unpredictable and arranged, and exist forever, even the chip manufacturer cannot imitate. The PUF circuit dynamica...

Claims

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Application Information

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IPC IPC(8): H03K19/094
Inventor 张跃军汪鹏君张学龙
Owner HANGZHOU HANGUANG ILLUMINATION
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