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Electronic Tamper Detection

A technology of electronic tampering and tampering detection, which is applied in the field of security systems and can solve problems such as destroying security keys and keys being no longer usable

Active Publication Date: 2018-03-27
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tampering with the seal will destroy the security key, making the key no longer usable

Method used

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  • Electronic Tamper Detection
  • Electronic Tamper Detection
  • Electronic Tamper Detection

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] A protection scheme using an inductor and an oscillator is now discussed.

[0019] Figure 1A is an example of a top view of a first device for electronic tamper detection, Figure 1B is an example of a side view of a first device for electronic tamper detection. These figures are discussed together below.

[0020] In one example, an apparatus is formed in a package 102 . Package 102 includes circuitry 104 . Circuitry 104 may take a variety of forms, including the form of a silicon chip. Circuit 104 includes four inductors 110 located near the four corners of circuit 104 and between conductive surfaces 106 and 108 . Circuitry 104 also includes I / O bus 112 for communicating with devices external to package 102 . Fabrication of circuit 104 is compatible with standard digital CMOS process steps.

[0021] The first conductive surface 106 is located on one side of the circuit 106 (below the backside of the chip), and the second conductive surface 108 is located on the ...

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PUM

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Abstract

An apparatus, method and package for electronic tamper detection. In one example, the means for electronic tamper detection includes: a first inductor at a first distance from the first conductive surface; a first oscillator generating a first frequency dependent on the first inductor; and a comparator, If the generated first frequency is not within the tolerance range of the pre-stored first frequency, a tampering detected state is set. An example of a method for manufacturing an electronic tamper detection device, device or package is also provided.

Description

technical field [0001] The present application relates generally to a security system and method, and in one example to a system, method and apparatus for tamper detection. Further improvements to such systems, methods and devices are desired. Background technique [0002] Integrated circuits (ICs) for applications such as electronic passports, smart cards and RF-ID tags usually contain secret security keys and perform secret functions. These ICs need to remain secure against reverse engineering attacks intended to obtain their secrets. [0003] After removal from their protective encapsulation, these ICs can be attacked from the front side (circuit side) as well as from the back side (through the substrate). These attacks can include various analytical techniques such as light or photon emission detection, thermal infrared detection, liquid crystal detection, voltage or electric field detection, and magnetic field detection. [0004] Often these methods are combined with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/76
CPCG06K19/07309G06K19/07372H01L23/576H01L23/645H01L2224/48091H01L2224/48247H01L2224/49175H01L2924/181H01L2224/05554H01L2924/00014H01L2924/00H01L2924/00012G06F21/70
Inventor 卢卡斯·F·蒂梅杰
Owner NXP BV