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Physical non-clonable circuit referring to fake resistance, authentication and secret keys and implement method

An implementation method and physical technology, applied in the fields of authentication, key management, and anti-counterfeiting, can solve complex digital back-end processing and other problems, and achieve the effect of improving stability

Inactive Publication Date: 2017-12-19
大家传承网络科技(深圳)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reliability of this PUF can be increased to 100%, but it requires complex digital back-end processing (such as error correction codes)

Method used

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  • Physical non-clonable circuit referring to fake resistance, authentication and secret keys and implement method
  • Physical non-clonable circuit referring to fake resistance, authentication and secret keys and implement method
  • Physical non-clonable circuit referring to fake resistance, authentication and secret keys and implement method

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Embodiment Construction

[0040] The principles of the disclosure will now be described with reference to some example embodiments. It can be understood that these embodiments are described only for the purpose of illustrating and helping those skilled in the art to understand and implement the present disclosure, rather than suggesting any limitation to the scope of the present disclosure. The disclosure described herein may be implemented in various ways other than those described below.

[0041] As used herein, the term "comprising" and its variations may be understood as open-ended terms meaning "including but not limited to". The term "based on" may be understood as "based at least in part on". The term "one embodiment" can be read as "at least one embodiment". The term "another embodiment" may be understood as "at least one other embodiment".

[0042] Please refer to figure 1 It is a schematic structural diagram of a physical unclonable functional circuit in an embodiment of the present inven...

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PUM

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Abstract

The invention discloses a physical non-clonable circuit referring to fake resistance, authentication and secret keys and an implement method. The circuit comprises current mirror matrixes, a sensing amplifier circuit and a feedback detection logic circuit, wherein each current mirror matrix comprises two PMOS transistors, the PMOS transistors are used for forming two identical mirrors at the same time, the physical non-clonable circuit further comprises a set of NMOS transistors in each current mirror matrix, aiming at different excitation, one NMOS transistor in one set of NMOS transistors in each current mirror matrix is chosen to constitute one current mirror, the sensing amplifier circuit is used for receiving voltage output by the current mirror matrixes as input and generating response, and the feedback detection logic circuit is used for detecting and / or labeling unstable output.

Description

technical field [0001] The invention relates to the fields of anti-counterfeiting, authentication and key management, in particular to a physically unclonable circuit and a realization method related to anti-counterfeiting, authentication and keys. Background technique [0002] In today's semiconductor industry, specialized vertical division of labor has become the mainstream. From chip design, tape-out to final packaging and testing, each process is in charge of different companies. This realizes the optimization of IC industry capital and efficiency. However, under the mode of highly detailed division of labor, the problem of intellectual property (IP) control is becoming more and more significant. How to control and supervise the use of sold IP has become a hot issue in the semiconductor industry. [0003] In this context, physically unclonable functions (PUFs) have attracted widespread attention as a low-cost, high-security lightweight chip authentication technology. ...

Claims

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Application Information

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IPC IPC(8): G06F21/73H03K19/003
Inventor 曹元邱少平
Owner 大家传承网络科技(深圳)有限公司
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