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Communicating device, program and recording medium

一种通信设备、程序的技术，应用在分局设备、电话通信、程序控制设计等方向，能够解决限制程序多样化等问题

Inactive Publication Date: 2004-05-26
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it creates various limitations in the operation of the downloader
That is, it limits the variety of programs

Method used

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  • Communicating device, program and recording medium
  • Communicating device, program and recording medium
  • Communicating device, program and recording medium

Examples

Experimental program
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no. 1 example

[0027] A first embodiment of the present invention will be described below with reference to drawings. In the drawings, the same numerals denote the same parts.

[0028] 1-1. Configuration of the embodiment

[0029] 1-1-1. Structure of communication system

[0030] FIG. 1 is a block diagram showing the structure of a communication system 1 according to a first embodiment of the present invention. As shown in the figure, the communication system 1 includes a content server 10, the Internet 20, a mobile packet communication network 30, and a mobile phone 40. Typically, a plurality of mobile phones 40 will be located in the communication system 1 . However, only one mobile phone 40 is shown in FIG. 1 for simplicity. For the same reason, only one content server 10, one gateway server 31 and one base station 32 are shown in FIG.

[0031] The content server 10 has a function of performing packet communication with the mobile phone 40 via the Internet 20 and the mobile packet co...

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PUM

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Abstract

A mobile phone receives a program and identification information of a trusted application for the program, specifies data to be used in executing the program, generates a type of object by selecting either an imperfect encapsulated object or a perfect encapsulated object to be generated on the basis of the identification information of a trusted application, and uses the data by using only the generated object when the program is executed.

Description

technical field [0001] The present invention relates to techniques for securing data in communication devices. Background technique [0002] It has become a very common practice to use a mobile phone with a packet communication function to download a program from a server connected to the Internet. [0003] While the Internet enables the free exchange of programs among people around the world, it also has inherent risks, including, for example, data theft from communication devices. It is also possible to deliver a program that causes communication equipment to malfunction without malicious intent. Given these risks, user privacy is a major concern. [0004] It is possible to limit the program functions provided to the mobile phone. For example, one can execute those in Java  Programs written for mobile phones will impose restrictions on these programs. Specifically, these programs only allow access to the following resources: 1) the server where the program or program...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/44G06F21/00H04L29/06H04M1/72403H04M1/72406H04W28/00H04W88/02
CPCG06F2221/2145G06F21/6218H04M1/72522G06F21/54G06F2221/2119G06F2221/2143G06F21/51G06F2221/2115H04M1/72525G06F2221/2141G06F2221/2113H04L63/168G06F21/53H04M1/72406H04M1/72403
Inventor 神谷大山田和宏近藤隆
Owner NTT DOCOMO INC
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