Power-off test system, method and apparatus

Abstract

The invention relates to the field of information security, in particular to a power-off test system, method and apparatus. A controller, a relay and a computer are adopted; the controller and the relay are used for controlling a to-be-tested USBKey to be powered off and re-powered on according to a control instruction sent by the computer; and the computer is used for setting power-on and power-off time of the to-be-tested USBKey, performing a loop test until data read after the to-be-tested USBKey is re-powered on is determined to be abnormal or the same as pre-written data, judging whether a power-off protection function of the to-be-tested USBKey is normal or not, prolonging power-on time in sequence according to a set time step length and initial power-on time during each test, writing the data, and controlling the to-be-tested USBKey to be powered off and re-powered on according to the power-off time. In the way, the power-off test on the USBKey is realized, and the power-on time is prolonged gradually during each test, so that the power-off state of each time period in the whole data writing process is tested, and the power-off test is more sufficient and completer.

Description

technical field [0001] The invention relates to the field of information security, in particular to a system, method and device for power-down testing. Background technique [0002] USBKey, also known as U-shield, is a hardware device with USB interface. It has a built-in single-chip microcomputer or smart card chip, and has a certain storage space, which can store the user's private key and digital certificate, and use the built-in public key algorithm of USBKey to realize the user identity Authentication, USBKey authentication is also a very safe authentication method. [0003] In practice, when the USBKey updates the data in the FLASH, it needs to perform power-down protection operation to prevent accidental data damage caused by sudden power-off when updating data, and ensure the integrity of the data. In this way, it is very important to perform a power-down test, namely Detect whether the power-down protection method of the USBKey is effective. If the power-down test ...

AI Technical Summary

Problems solved by technology

[0003] In practice, when the USBKey updates the data in the FLASH, it needs to perform a power-down protection operation to prevent accidental damage to the data due to a sudden power-off when updating the data, and to ensure the integrity of the data. In this way, it is very important to perform a power-down test, that is, Detect whether the power-down protection method of the USBKey is effective. If the power-down test result is inaccurate, the security of the data in the USBKey may not be guaranteed. However, there is no power-down test for the USBKey in the prior art.

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