Trojan horse circuit detection and error recovery method during equipment operation

Abstract

The invention provides a Trojan horse circuit detection and error recovery method during equipment operation, which comprises the following steps of: establishing original calculation and re-calculation for Trojan horse circuit detection, and recovery calculation when a Trojan horse circuit is triggered and has an error; binding the task node to an IP core; calculating the number of IP core manufacturers required by the IP core; matching the optimal IP core manufacturer combination; determining the scheduling time of the tasks and the number of IP cores; constructing a positioning and replacing structure for each IP core; detecting whether the original calculation result and the recalculation result are the same or not in real time, and if not, positioning the IP core where the activated Trojan horse circuit is located; and replacing the IP core where the activated Trojan circuit is located. By means of the method, it can be guaranteed that after the Trojan horse circuit is triggered,output errors are detected, and recovery calculation is provided, so that normal operation of the system is achieved, and meanwhile the infected IP core can be rapidly positioned and replaced before next operation of the system.

Description

technical field [0001] The invention relates to the field of computers, in particular to a Trojan horse circuit detection and error recovery method when a device in an integrated circuit is running, and in particular to a Trojan horse circuit detection and error recovery method when an untrustworthy third-party IP core is running. Background technique [0002] The globalization of integrated circuit design and manufacturing has made chip security and reliability an important issue, and the detection of Trojan horse circuits in integrated circuit design has always been the top priority. [0003] There are four main detection methods for general Trojan horse circuits, which are physical detection, bypass analysis, functional testing, and trusted design. They are all non-runtime detection methods and do not provide recovery calculations. We analyze four Trojan horse circuit detection methods respectively. (1) Physical detection, which is essentially a technology based on fail...

AI Technical Summary

Problems solved by technology

To sum up, the existing four Trojan horse circuit detection mechanisms are not universally applicable, and do not provide error recovery calculations, and cannot meet the runtime requirements

[0004] At the same time, the infected IP core cannot be located and replaced in time

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