Equipment used for SPI interface chip security attack testing and security attack testing method thereof

Abstract

The invention discloses a device for security attack testing of SPI interface chips and security attack testing method thereof. The device includes a test chip fixture and a fault injection port, an SPI-7816 conversion circuit, a first 7816 communication port, a power supply port, and a tongue plate circuit. The SPI-7816 conversion circuit is used for converting the SPI communication protocol to the 7816 communication protocol for communication. The SPI-7816 conversion circuit is encapsulated inside the metal housing. The power supply port is electrically connected to the SPI-7816 conversion circuit connect to the power supply for supplying power to the SPI-7816 conversion circuit. The tongue plate circuit includes a second 7816 communication port electrically connected to the first 7816communication port. The tongue plate circuit is capable of communicating with the fault injection system. During testing of security attacks on SPI interface chips, communication between SPI interfacechips and fault injection system can be realized directly through the device without resetting the SPI-7816 conversion circuit, so that the device has convenience and save test time cost.

Description

technical field [0001] The invention relates to the field of chip safety testing, in particular to a device for SPI interface chip safety attack testing and a safety attack testing method thereof. Background technique [0002] In order to ensure the security of the chip, the chip will be tested for security attacks during the development process or before leaving the factory, and the fault injection and security analysis of the chip will be performed by building a fault injection system. At present, when domestic chip design manufacturers and testing institutions build fault injection systems, they usually use the VCGlitcher (voltage glitch trigger and synchronization signal device) of the Inspector (detector) platform equipment produced by Riscure in the Netherlands. However, VCGlitcher devices only support chips with 7816 protocol interfaces and smart card packages. Among the chips used in power systems, except for power purchase cards packaged in the form of smart cards, ...

AI Technical Summary

Problems solved by technology

However, VCGlitcher devices only support chips with 7816 protocol interfaces and smart card packages. Among the chips used in power systems, except for power purchase cards packaged in the form of smart cards, most of them are non-7816 protocol interfaces and non-smart card packages. Therefore, For the security analysis of power chips, the Inspector platform equipment launched by Riscure in the Netherlands cannot be directly used

[0003] Since the chips used in the power system all support the SPI (Serial Peripheral) interface, the commonly used security analysis for the power chip is to temporarily build a SPI-to-7816 communication protocol adapter board circuit, and then communicate with the Inspector The platform equipment is used for interactive communication so as to conduct chip security analysis and chip security attack testing. Generally, the temporary conversion circuit is relatively simple and uses too many wires to connect, which will introduce a lot of voltage and electromagnetic noise signals, and these noise signals will be Affect the analysis of the attack location, and sometimes lead to misjudgment of the fault injection time and location in the chip security analysis, and even affect the success or failure of the final attack test for the chip security analysis, and every security analysis needs to be rebuilt and converted circuit and debug, thus consuming unnecessary time

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