20240013022. METHOD FOR DETECTING AN ATTACK BY ELECTROMAGNETIC WAVES OF A CHIP OR A SYSTEM-IN-PACKAGE BASED ON THE GMI EFFECT simplified abstract (COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES)

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METHOD FOR DETECTING AN ATTACK BY ELECTROMAGNETIC WAVES OF A CHIP OR A SYSTEM-IN-PACKAGE BASED ON THE GMI EFFECT

Organization Name

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES

Inventor(s)

Thibaut Sohier of Grenoble Cedex 09 (FR)

Stéphan Borel of Grenoble Cedex 09 (FR)

Jean-Philippe Michel of Grenoble Cedex 09 (FR)

METHOD FOR DETECTING AN ATTACK BY ELECTROMAGNETIC WAVES OF A CHIP OR A SYSTEM-IN-PACKAGE BASED ON THE GMI EFFECT - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240013022 titled 'METHOD FOR DETECTING AN ATTACK BY ELECTROMAGNETIC WAVES OF A CHIP OR A SYSTEM-IN-PACKAGE BASED ON THE GMI EFFECT

Simplified Explanation

The abstract of the patent application describes a method for detecting attacks on a device using a Giant Magneto-Impedance (GMI) effect material. The method involves demagnetizing the GMI material to a predefined value lower than its maximum remanent magnetization. It then determines the impedance of an attack detection element and measures a second impedance value after a certain time period. Finally, it compares the first and second impedance values to detect any changes.

  • The method involves demagnetizing the GMI-effect material to a predefined value lower than its maximum remanent magnetization.
  • It determines the impedance of the attack detection element initially.
  • After a certain time period, it measures the second impedance value by circulating an alternating current through the GMI-effect material.
  • The first and second impedance values are then compared to detect any changes.

Potential Applications:

  • Security systems: This technology can be used in security systems to detect attacks or tampering on devices.
  • Anti-counterfeiting measures: It can be applied in products or packaging to detect any unauthorized access or tampering.
  • Data protection: The method can be used to secure sensitive data by detecting any attempts to compromise the device.

Problems Solved:

  • Unauthorized access: The technology helps in detecting any unauthorized access or tampering on devices.
  • Device integrity: It ensures the integrity of devices by detecting any physical attacks or tampering attempts.
  • Data security: By detecting attacks, it helps in protecting sensitive data from being compromised.

Benefits:

  • Early detection: The method allows for the early detection of attacks or tampering on devices, enabling timely response.
  • Reliable detection: The use of GMI-effect material provides a reliable method for detecting changes in impedance.
  • Versatility: The technology can be applied to various devices and systems, making it versatile in different applications.


Original Abstract Submitted

a) demagnetising the gmi-effect material such that the value of its remanent magnetisation is equal to a predefined value lower than the value of its maximum remanent magnetisation,

b) determining a first value of the impedance of the attack detection element, then

c) after a time period during which the device might have undergone an attack, measuring a second value of the impedance of the attack detection element by circulating in the gmi-effect electrically-conductive material an alternating current with the same frequency as when determining the first impedance value,

d) comparing the first and second values of the impedance of the attack detection element.

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