Method and device used for multi-mode smart card operating system

An operating system and smart card technology, applied in the direction of selection device, program control device, record carrier used by machines, etc., to achieve data security, convenient method, and powerful functions

Inactive Publication Date: 2007-11-07
BEIJING HENGBAO INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the existing smart card operating system that only supports a single network, and provide a method for dynamically switching the working mode of different networks to adapt to the smart card operating system of multi-network integration such as 3GUMTS network, 2G GSM and CDMA network , and USIM smart card operating system with dynamic management of smart card memory space, data security backup, kernel exception management, algorithm or program dynamic download function

Method used

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  • Method and device used for multi-mode smart card operating system
  • Method and device used for multi-mode smart card operating system
  • Method and device used for multi-mode smart card operating system

Examples

Experimental program
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Embodiment 1

[0025] As shown in Figure 1, the card developer writes various function libraries and pre-personalized parameters of the hardware layer, kernel layer, and application protocol layer into the chip to make a card with a multi-mode smart card operating system, and inserts the card into the mobile terminal to activate it. use. The mobile terminals here are not limited to 3G mobile phones, 2G mobile phones, and PHS.

[0026] As shown in Figure 2, the developer writes the file system and security algorithm supporting four working modes of UTMS, GSM, CDMA, and PHS into the smart card as the kernel layer of the operating system. After the user's mobile terminal initially powers on the smart card, when the first command sent by the mobile terminal is sent to the working mode management module, the module automatically sets the working mode. If the first command sent by the mobile terminal is a 3G command, the chip will operate The system will set the 3G working mode and system operati...

Embodiment 2

[0028] This embodiment is how the memory space management module supports the multi-mode smart card operating system.

[0029] Fig. 3 describes the structure of the multi-mode smart card operating system, including the hardware layer, the kernel layer, the application protocol layer and the main functional devices of each layer. Among them, the hardware layer provides hardware driver function library, including input / output control driver, hardware encryption algorithm driver, random number generation driver, memory control driver, anti-card attack driver; the kernel layer provides memory space dynamic management module function library, data security Backup module function library, kernel exception management module function library, program patch download module function library, lifecycle management module function library, provide file system function library and security algorithm function library upward according to different working modes, and control the hardware layer ...

Embodiment 3

[0032] This embodiment is how the data security backup module supports the multi-mode smart card operating system.

[0033]As shown in Figure 5, the data security backup module function library includes an initialization flag unit device, a search for an effective flag unit device indicating that the backup flag is valid, a new flag unit is selected and its logical backup sector device is initialized, and a physical address device for obtaining the backup sector , backup data device, securely write a string of data bytes to the EEPROM / FLASH device, securely write a byte to the EEPROM / FLASH device, initialize the secure backup environment device, exit the secure backup environment device, restore data from the backup area to the original address device

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Abstract

An operation system of multimode intelligent card is prepared as setting three layers of hardware layer and kernel layer as well as application protocol layer from bottom to top, using each layer as a relatively independent subsystem and setting a numbers of function-banks on each layer according to operation mode required by mobile terminal. Its operating method is also disclosed.

Description

technical field [0001] The invention relates to the field of smart card operating systems, in particular to a method and device for multi-mode smart card operating systems. Background technique [0002] 3G projects are springing up all over the world, and more than 240 operators in more than 70 countries have officially started 3G commercial use. In competition with the 3G standards proposed by Europe and the United States, TD-SCDMA proposed by China has officially become one of the global 3G standards, which indicates that China has entered the world's leading position in the field of mobile communications. From the vast application space of 3G, we can see that relying on the high-speed network bandwidth of 3G and the powerful computing and storage capabilities of 3G mobile phones, 3G terminals will surely become the necessities of personal life in the 3G era. On the one hand, for users, in the process of migrating from traditional 2G networks to 3G networks, all kinds of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/32G06F9/44G06K19/07H04W88/06H04W92/08
Inventor 赵再兴付睿
Owner BEIJING HENGBAO INFORMATION TECH
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