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Multi-application intelligent card with encryption and decryption functions

A multi-application smart card, encryption and decryption technology, applied in the direction of instruments, digital data authentication, electronic digital data processing, etc., can solve the problem of not being able to prevent malicious data damage, and achieve the effect of guaranteeing independence

Active Publication Date: 2015-04-01
陕西埃菲克能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

They can detect and correct channel errors in data transmission to a certain extent, but they cannot prevent external malicious damage to data

Method used

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  • Multi-application intelligent card with encryption and decryption functions
  • Multi-application intelligent card with encryption and decryption functions
  • Multi-application intelligent card with encryption and decryption functions

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Embodiment Construction

[0025] 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 of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] Common multi-application file structures such as figure 1 As shown, there is only one root file MF in the file system of each smart card, and all other files are children (grandchildren) of this file. We know that any DF (Dedicated File) is physically and logically independent, and has its own security mechanism and application data. In order to identify different DFs, each DF has a unique file identifier FID (File Identifier) ​​under the...

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Abstract

The embodiment of the invention provides a multi-application intelligent card with encryption and decryption functions. The intelligent card comprises a transmission management module, a command parsing module, an encryption / decryption module and a secure conversation management module, wherein the transmission management module is used for inputting a command or returning a response according to a preset transfer protocol; the command parsing module is used for parsing the received command; the encryption / decryption module is used for executing encryption or decryption operation on the application content in an application card; the secure conversation management module is used for managing the contents in the application card based on conversation information, and controlling the state transition of the content. The multi-application intelligent card not only can be used for solving the security problem of the intelligent card well, but also has the advantages of short development period, convenience in system maintenance and update, lower cost and the like.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to a multi-application smart card with encryption and decryption functions. Background technique [0002] With the rapid development of multi-service applications of smart cards, information can be exchanged automatically, quickly and safely between different networks, systems and data sources. Different application systems may belong to different trust domains, and users accessing application systems in different information domains have different identities. Data information in the application system cannot be accessed or tampered with by illegal users. For this type of information data security, the main solution in the prior art is data integrity check, including parity check and cyclic redundancy check. Although these two checks can achieve the purpose of ensuring data integrity, they do not have the ability to resist data tampering. They can detect and correc...

Claims

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Application Information

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IPC IPC(8): G06F21/78G06F21/62G06F21/77
CPCG06F21/34G06F21/6209G06F2221/2141
Inventor 杨小宝吴小峰李晓伦
Owner 陕西埃菲克能源科技有限公司
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