System and method for protecting complete surface of intelligent card

Abstract

The invention discloses a system and a method for protecting a complete surface of an intelligent card. The system for protecting the complete surface of the intelligent card comprises a graphic code generation module, a graphic code identification module and the intelligent card, wherein the graphic code generation module is used for generating an internal identifier and a first check identifier according to chip information of the intelligent card, generating a graphic code according to the first check identifier and setting the graphic code on the surface of the intelligent card; the graphic code identification module is used for identifying the graphic code on the surface of the intelligent card and converting the graphic code into a second check identifier according to the graphic code on the surface of the intelligent card; the intelligent card obtains the internal identifier and the second check identifier from the graphic code generation module and the graphic code identification module respectively and checks the second check identifier according to the internal identifier; if the second check identifier is consistent with the internal identifier, the surface of the intelligent card is complete; and if the second check identifier is not consistent with the internal identifier, the surface of the intelligent card is not complete. According to the system and the method, the complete surface of the intelligent card can be protected, the design is simple, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of smart cards, in particular to a system and method for protecting the integrity of the smart card surface. Background technique [0002] With the continuous advancement of security attack technology and security attack equipment, there are more and more attack methods targeting smart card chips or USBKEY chips. Among them, the attack methods against smart card chips are roughly divided into three categories, namely non-intrusive attack, semi-intrusive attack and intrusive attack. [0003] Among them, typical non-intrusive attack means through simple power analysis, differential power analysis and electromagnetic radiation analysis, without any modification to the attack object. That is, by detecting the power consumption information or electromagnetic radiation information when the chip is working, and cracking the key information of the chip through mathematical statistics. The semi-intrusive attack met...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a system and method for protecting the integrity of the smart card surface, so as to solve the problem of increasing the complexity and cost of chip design

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