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System for detecting sensitive locations of chips in fault injection testing

A technology for error injection and detection of chips, applied in electronic circuit testing and other directions, can solve problems such as low test efficiency, inability to accurately identify and determine chips, etc., to achieve the effect of improving test accuracy, improving test automation level, and ensuring objectivity

Active Publication Date: 2019-09-06
北京银联金卡科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing test methods cannot accurately identify and determine sensitive positions on the chip that are susceptible to energy interference and cause errors, and the test efficiency is low

Method used

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  • System for detecting sensitive locations of chips in fault injection testing
  • System for detecting sensitive locations of chips in fault injection testing
  • System for detecting sensitive locations of chips in fault injection testing

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Embodiment Construction

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0046] Such as figure 1 As shown, the system for detecting the sensitive position of the chip in the error injection test disclosed by the present invention includes: a host computer, a chip to be tested arranged on a mobile station, a leakage current acquisition module, a sensitive position analysis module, an energy parameter control module, and an interference source Wait.

[0047] The interference source is used to output energy and perform error injection attack test on the chip under test; the interference source includes lasers, electromagnetic jammers, etc.

[0048]The host computer performs data connection with the chip to be tested through a communication module (a module that can establish a data connection with the chip, such as a module that follows communication protocols such as 7816, 14443, SWP, UART, USB, etc.), and can obtai...

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PUM

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Abstract

The invention discloses a system and method for detecting the sensitive position of a chip in an error injection test, and the method comprises the steps: collecting a state signal, a position signal and a leaked current signal of a to-be-detected chip in an error injection attack test process; recognizing and determining a sensitive position region on the chip according to the state signal, the position signal and the leaked current signal of the to-be-detected chip; generating sensitive position information in advance, and then carrying out further testing in the determined sensitive position region; and carrying out the updating and dividing of the sensitive position region. The system and method can achieve the accurate determining of the sensitive position of the chip, greatly improve the testing efficiency, and guarantee the accuracy and effectiveness of a test result.

Description

technical field [0001] The invention belongs to the technical field of chip information security, and relates to a system for detecting sensitive positions of chips in error injection testing. Background technique [0002] The chip stores key information such as user personal information and account information. Once it is attacked and used by criminals, the information in the chip will be leaked, such as personal information leakage, user name and password leakage, property loss, etc., causing irreparable damage to users. Loss. [0003] The applicant Beijing UnionPay Gold Card Technology Co., Ltd. is committed to researching chip information security technology, testing the security of chips through various testing methods, providing timely and reliable defense tips for chip research and development, and providing safe and effective chips for major banks . In order to ensure the safety of the chip and prevent criminals from proposing targeted and further attack methods fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/28
Inventor 张城李秘张永峰马哲孙衍琪渠韶光张炼孟飞宇张志波杨子砚鲍岩
Owner 北京银联金卡科技有限公司
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