A Hardware Trojan Horse Detection Method Based on Chip Transient Temperature Characteristic Analysis

Abstract

The invention discloses a hardware Trojan detection method based on the chip transient temperature characteristic analysis provided by the invention, which utilizes the physical characteristic of temperature and converts the temperature difference into the time difference in the temperature change, so as to amplify the difference, thereby to a certain extent In order to reduce the impact of process deviation and measurement noise. Then, according to the characteristics of the influence brought by the hardware Trojan horse, the invention selects its appropriate characterization index, and at the same time sets its judgment threshold based on the data of the existing samples to be diagnosed, and finally realizes an effective diagnosis and judgment. This method takes into account the process deviation and measurement noise in the actual measurement, and at the same time, the characteristic information and judgment threshold in the whole method are completely taken from the current sample data to be diagnosed, and there is no need for a golden sample with safety guarantee. It is an effective method. , An unsupervised diagnostic method with a low practical threshold.

Description

technical field [0001] The invention belongs to the technical field of hardware security, and in particular relates to a hardware Trojan horse detection method based on chip transient temperature characteristic analysis. Background technique [0002] A hardware Trojan horse is a malicious logic circuit added by illegal intruders in the process of integrated circuit design and production. It can be activated under the specific trigger conditions of its design and realize malicious functions such as leaking confidential information, tampering with functions, or destroying circuits. Since hardware Trojans are generally logic circuits specially designed by intruders for their intrusion objects, most hardware Trojans have better concealment and are difficult to be detected. Since the hardware circuit cannot be changed once it is put into production, once it is invaded by a hardware Trojan horse, on the one hand, commercial information and national security secrets may suffer irre...

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Problems solved by technology

[0012] Most of the detection processes of the above-mentioned methods require gold samples as a reliable basis for their judgment. However, it is difficult to obtain 100% credible gold samples in reality, which brings obstacles to engineering practice.

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