Chip fault injection detection device and method

Abstract

The present invention provides a chip fault injection detection device and method, wherein the device includes: a control device for, during the fault injection detection process, when receiving the feedback result of the hot start failure of the chip to be tested, sending a cold start command to a fault injection device; a fault injection device, used for driving the cold start device to start according to the cold start instruction, generating a cold start trigger control signal, and sending the cold start trigger control signal to the cold start device; The fault injection device is connected to the chip under test, and is used for driving the chip under test to cold start according to the cold start trigger control signal. The above technical solution realizes that when the hot start of the chip to be tested fails during the fault injection detection process, the chip to be tested can be automatically restarted, the manual workload of the chip fault injection detection is reduced, the labor cost of the chip fault injection detection is saved, and the chip fault is improved. Efficiency of injection detection.

Description

technical field [0001] The invention relates to the technical field of chip detection, in particular to a chip fault injection detection device and method. Background technique [0002] Chips are the core equipment of current IoT (Internet of Things, Internet of Things) devices. According to functions, chips can be divided into categories such as sensing, communication, and computing. These different types of chips have been widely used in automobiles, home appliances and other fields. However, with the growth of Internet of Things products, the security of chips has also been widely concerned, and correspondingly, more and more attention has been paid to the security testing of chips. At present, the more feasible chip security assessment methods adopted by the industry mainly include fault injection analysis method and side channel analysis method. Compared with the side channel analysis method, the fault injection analysis method has higher operability and versatility, s...

AI Technical Summary

Problems solved by technology

[0008] The reset reset method used by the existing fault injection device has the following two disadvantages: 1. It is only applicable to chips with a reset interface. For chips without a reset interface, it is necessary to rely on the operator to manually disconnect the power supply of the chip and then restart the chip. ; 2. For a chip equipped with an operating system, fault injection will change the data stored in the RAM and cause the RAM to fail to restart the chip. At this time, it is necessary to rely on the operator to manually disconnect the chip power first, and then restart the chip to power on. The operating system is then reloaded into RAM

[0009] In summary, when the chip cannot be hot-started during fault injection, the existing fault injection detection scheme that repeatedly restarts the chip manually has low efficiency, heavy detection workload, and high labor costs.

Images