Aligning method and device of side channel signal and reference signal

A technology of reference signal and side channel, applied in the field of alignment method and device of side channel signal and reference signal, can solve the problem of no security system, etc., and achieve the effect of speeding up alignment speed and improving detection efficiency

Active Publication Date: 2018-07-03
AEROSPACE INFORMATION
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  • Abstract
  • Description
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Problems solved by technology

However, no security system is absolutely reliable. There are more and more means of attacking security devices, and side channel attacks are one of them.

Method used

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  • Aligning method and device of side channel signal and reference signal
  • Aligning method and device of side channel signal and reference signal
  • Aligning method and device of side channel signal and reference signal

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] In order to detect whether there is a possibility of a security device being attacked by a side channel, it is usually necessary to detect whether there is a gap between the secret data of the security device and the leaked data (that is, the side channel data, which can be time consumption data, power consumption data or electromagnetic radiation consumption data). High-intensity relationship. For the accuracy of detection, it is necessary to preprocess the ...

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Abstract

The invention discloses an aligning method of side channel signals and reference signals, comprising the steps of conducting resampling on the high energy-consuming area in the side channel signal andthe high-consuming area in the reference signal; aligning the side channel signals and the reference signals after re-sampling; replacing the high energy-consuming area in the side channel signal after aligning with the high energy-consuming area in the side channel signal before re-sampling. The invention is advantageous in that the aligning speed of the side channel signals and the reference signals can be accelerated; and the detection efficiency of the possibility of a safety device being attacked by the side channel can be improved.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for aligning side channel signals and reference signals. Background technique [0002] Encryption is a very important security component for computing devices and network systems. However, no security system is absolutely reliable, and there are more and more means of attacking security devices, and side channel attacks are one of them. [0003] Side Channel Attack (SCA for short), also known as side channel attack, this attack method is aimed at information leakage of time series data such as time consumption, power consumption or electromagnetic radiation consumption of encrypted electronic equipment during operation, and The method of attacking encrypted electronic equipment is much more effective than the mathematical method of cryptanalysis, which poses a serious threat to security equipment, so the prevention of side channel attacks is becoming mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L7/00H04L25/03
CPCH04L7/0016H04L25/03012
Inventor 华刚田心王永保
Owner AEROSPACE INFORMATION
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