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Deviation signal producing circuit and multiport configurable PUF circuit

A technology of deviation signal and circuit generation, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problem of current input current size deviation and other problems, and achieve the effect of improving uniqueness

Active Publication Date: 2016-06-15
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current mirror is an essential part of the analog circuit, which is used to copy the input current to the output branch. However, due to the random process deviation and system error between the input-output circuit, the current copied to the output branch will surround the input The magnitude of the current produces a deviation

Method used

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  • Deviation signal producing circuit and multiport configurable PUF circuit
  • Deviation signal producing circuit and multiport configurable PUF circuit
  • Deviation signal producing circuit and multiport configurable PUF circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment one: if figure 1 As shown in Figure 2(a), a deviation signal generating circuit includes a reference current source, a voltage divider circuit, a multi-channel cascode current mirror and m logic control signal switches S1, S2, ..., Sm, where m is An integer greater than or equal to 2;

[0027] The reference current source includes a first PMOS transistor P1, a second PMOS transistor P2, a third PMOS transistor P3, a fourth PMOS transistor P4, a first NMOS transistor N1, a second NMOS transistor N2, a third NMOS transistor N3, and a fourth NMOS transistor N4, the fifth NMOS transistor N5 and the first resistor R1, the voltage divider circuit includes the second resistor R2 and the third resistor R3; the source of the first PMOS transistor P1, the source of the second PMOS transistor P2, the fourth PMOS transistor P4 The source of the first resistor R1, one end of the second resistor R2 and one end of the third resistor R3 are all connected to the power supply...

Embodiment 2

[0028] Embodiment two: if figure 1 As shown in Figure 2(a), a deviation signal generating circuit includes a reference current source, a voltage divider circuit, a multi-channel cascode current mirror and m logic control signal switches S1, S2, ..., Sm, where m is An integer greater than or equal to 2;

[0029]The reference current source includes a first PMOS transistor P1, a second PMOS transistor P2, a third PMOS transistor P3, a fourth PMOS transistor P4, a first NMOS transistor N1, a second NMOS transistor N2, a third NMOS transistor N3, and a fourth NMOS transistor N4, the fifth NMOS transistor N5 and the first resistor R1, the voltage divider circuit includes the second resistor R2 and the third resistor R3; the source of the first PMOS transistor P1, the source of the second PMOS transistor P2, the fourth PMOS transistor P4 The source of the first resistor R1, one end of the second resistor R2 and one end of the third resistor R3 are all connected to the power supply,...

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Abstract

The invention discloses a deviation signal producing circuit and a multiport configurable PUF circuit.A standard current source is formed by a first PMOS tube, a second PMOS tube, a third PMOS tube, a fourth PMOS tube, a first NMOS tube, a second NMOS tube, a third NMOS tube, a fourth NMOS tube, a fifth NMOS tube and a first resistor, the standard current source has the property of being insensitive to mains voltage fluctuation and temperature variation, the deviation signal producing circuit copies an electric current of the standard current source to all current mirror branches of a multi-channel cascode current mirror through a cascode form, all the current mirror branches are insensitive to temperature and voltage, and therefore the whole deviation signal producing circuit has the advantage that high robustness is achieved; the deviation signal producing circuit and the multiport configurable PUF circuit have the advantages that for an output response of the PUF circuit of the deviation signal producing circuit, uniqueness, randomness and reliability are higher, it is indicated through experimental results that the PUF circuit has good uniqueness and randomness, and the reliability of working at different temperatures of -40-125 DEG C and under voltage of 1.02-1.32 V is larger than 97.4 percent.

Description

technical field [0001] The invention relates to a deviation signal generation circuit, in particular to a deviation signal generation circuit and a multi-port configurable PUF circuit. Background technique [0002] With the rapid development of computer technology and integrated circuit technology, information security and privacy have attracted more and more attention. The physical unclonable function (Physical Unclonable Function, PUF) circuit provides a way to enhance information security by extracting hardware texture characteristics. This technology was first proposed by literature 1 (PAPPUR, RECHTR, TAYLORJ, et al. Physical one-way function [J]. Science, 2002, 297 (5589): 2026–2030.), it is the "DNA feature recognition technology" in the field of integrated circuits ". At present, silicon-based PUF circuits are the most important research direction, using the tiny process deviations (expressed in electrical characteristics as time delay, voltage, current deviation, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F3/26
CPCG05F3/262
Inventor 李刚汪鹏君张跃军丁代鲁
Owner NINGBO UNIV
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