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Side channel data processing method and equipment

A data processing and side channel technology, applied in digital transmission systems, secure communication devices, electrical components, etc., can solve problems such as data conflict detection difficulties, achieve the effects of expanding the detection range, reducing cumulative power consumption, and improving work efficiency

Active Publication Date: 2020-06-23
AEROSPACE INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the capacitive effect at the start and end of the security chip, there is accumulated power consumption in the side channel data at the start and end of the security chip, resulting in a gap between the side channel data at the start and end stages and the data when the security chip is running stably. It becomes difficult to detect conflicts between

Method used

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  • Side channel data processing method and equipment
  • Side channel data processing method and equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0033] The invention provides a side channel data processing method, which is used to reduce the cumulative power consumption in the side channel data at the start and end of the security chip, expand the detection range of the side channel data, and improve the working efficiency of detection. The specific implementation Steps see figure 1 ,As follows:

[0034] Step 101: Sampling the original side channel data of the security chip;

[0035] Step 102: Using a low-pass filter to perform low-pass filtering on the original side-channel data to obtain trend curve data of the original side-channel data;

[0036] Step 103: Obtain processed side channel data according to the original side channel data and trend curve data.

[0037] In implementation, the above-mentioned security chip is a trusted platform module, which is a chip that can independently generate keys and encrypt and decrypt. It has an independent processor and memory inside, which can store keys and feature data, and...

Embodiment 2

[0082] Based on the same inventive concept, the present invention also provides a side channel data processing device. For the specific implementation of the device, please refer to the description of the method embodiment, and the repetition will not be repeated.

[0083] The device includes: a processor and a memory, wherein the memory stores program codes, and when the program codes are executed by the processor, the processor is used to perform the following steps:

[0084] Sampling the raw side-channel data of the security chip;

[0085] Using the above-mentioned low-pass filter to perform low-pass filtering on the original side channel data to obtain trend curve data of the original side channel data;

[0086] The processed side channel data is obtained according to the original side channel data and the trend curve data.

[0087] As an optional implementation manner, the above-mentioned processor is also used for:

[0088] Correlation analysis is performed on the proc...

Embodiment 3

[0106] Based on the same inventive concept, the present invention also provides a side channel data processing device. For the specific implementation of the device, please refer to the description of the method embodiment, and the repeated parts will not be repeated.

[0107] Such as Figure 11 As shown, the device includes:

[0108] A sampling unit 110, configured to sample the original side channel data of the security chip;

[0109] The filtering unit 111 is configured to perform low-pass filtering on the original side-channel data by using a low-pass filter to obtain trend curve data of the original side-channel data;

[0110] The data unit 112 is configured to obtain processed side channel data according to the original side channel data and the trend curve data.

[0111] As an optional implementation, the above-mentioned device is also used for:

[0112] Correlation analysis is performed on the processed side channel data to perform collision detection on the process...

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Abstract

The invention discloses a side channel data processing method and side channel data processing equipment, which are used for reducing accumulated power consumption existing in the side channel data ofa security chip, expanding the range of side channel data detection and improving the working efficiency of detection. The method comprises the following steps: sampling original side channel data ofa security chip; performing low-pass filtering on the original side channel data by using the low-pass filter to obtain trend curve data of the original side channel data; and obtaining processed side channel data according to the original side channel data and the trend curve data.

Description

technical field [0001] The invention relates to the technical field of channel security detection, in particular to a side channel data processing method and equipment. Background technique [0002] As information security is increasingly concerned by people, the attack methods of security chips have been extensively and deeply studied, and they have also brought actual security threats to commercial products. Security chips are subject to more and more side-channel attacks, which have great impact on security The requirements for the chip's anti-attack capability are getting higher and higher. [0003] When testing the anti-attack capability of the side channel (Side Channel Attack) of the security chip, the purpose is to detect that the side channel data at different time points are similar to conflicts, so as to speculate that there are side channel data at the above different time points. Consistency, so detecting the similarity between two time points in the side-chann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/00
CPCH04L9/003H04L9/002Y02D10/00
Inventor 华刚
Owner AEROSPACE INFORMATION
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