A method and system for side-channel leakage detection and evaluation for cryptographic chips

By constructing a multi-dimensional side-channel data acquisition system and an improved detection model, the problems of the singleness and insufficient anti-interference ability of the side-channel leakage detection method of cryptographic chips are solved, realizing comprehensive and accurate detection and evaluation of side-channel leakage of cryptographic chips, and improving detection accuracy and adaptability.

CN122137525APending Publication Date: 2026-06-02SHANGHAI UNI SENTRY INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI UNI SENTRY INTELLIGENT TECH CO LTD
Filing Date
2026-03-04
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing methods for detecting side-channel leakage in cryptographic chips suffer from limited detection dimensions, weak anti-interference capabilities, insufficient evaluation accuracy, and poor adaptability, making it difficult to achieve comprehensive and accurate detection and evaluation.

Method used

A multi-dimensional side-channel data acquisition system covering power consumption, electromagnetic radiation, and timing is constructed. By combining an adaptive noise filtering algorithm and an improved correlation analysis model with a CNN-LSTM fusion model, side-channel leakage detection and evaluation are performed, and a multi-dimensional leakage evaluation index system is constructed.

Benefits of technology

It achieves comprehensive and accurate detection and objective assessment of side-channel leakage in cryptographic chips, improves detection accuracy and adaptability, can adapt to different environmental noise and cryptographic algorithms, and provides reliable security hardening suggestions.

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Abstract

This invention belongs to the field of cryptographic chip security detection technology, and discloses a method and system for side-channel leakage detection and evaluation of cryptographic chips. The method includes: constructing a multi-dimensional side-channel data acquisition system to achieve synchronous data acquisition; standardizing the acquired raw data set to obtain a standardized data set; using an improved correlation analysis model combined with a CNN-LSTM fusion model to perform side-channel leakage detection and locate sensitive leakage points; constructing a multi-dimensional leakage evaluation index system to comprehensively evaluate the leakage degree of sensitive leakage points and output an evaluation report. This invention, employing the above-mentioned side-channel leakage detection and evaluation method and system, solves the problems of existing detection methods such as single detection dimensions, weak anti-interference ability, and insufficient evaluation accuracy. It can achieve comprehensive and accurate detection and objective evaluation of side-channel leakage in cryptographic chips, providing a reliable basis for the security hardening of cryptographic chips.
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