Method and device for controlling operation authority of communication terminal chip
A technology for operating authority and controlling communication. It is applied in the direction of selection device, telephone communication, computer security device, etc. It can solve the problems of waste of chips, increase of production cost of communication terminal products, and difficulty in maintenance of communication terminal, so as to ensure safety and control operation. The effect of permissions
Active Publication Date: 2008-05-07
HUAWEI TECH CO LTD +1
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Problems solved by technology
After the chip is packaged, the permission control status of the chip cannot be changed
However, the disadvantage of this technology is that the availability of the same chip is not high, which may cause waste of chips, thereby increasing the production cost of communication terminal products
Moreover, since the authority control state of the chip cannot be changed to change the operation authority of the chip, it is difficult to maintain the communication terminal using this type of chip
Method used
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[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, further detailed description will be given below in conjunction with the accompanying drawings.
[0027] In the embodiment of the present invention, the authority control state of the communication terminal chip is controlled by setting the authority control information in the net program corresponding to the chip startup program. In order to ensure that the authority control information is not changed without authorization, the present invention performs a security check on the start-up program before running the start-up program containing the authority control information, and after determining that the start-up program is a clean program that has not been changed without authorization, then The startup program is run, and the chip operation permission is set in the permission control state corresponding to the permission control information according ...
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The embodiment of the present invention discloses a method for controlling the operation rights of a communication terminal chip, which includes four steps. Firstly, a startup application containing right control information and the first characteristic information of a net application corresponding to the startup application are obtained; secondly, the second characteristic information of the obtained startup application is determined; thirdly, the second characteristic information is compared with the first characteristic information; fourthly, when the second characteristic information and the first characteristic information are the same, the startup application containing the right control information is run in the communication terminal, and the chip operation rights corresponding to the right control information are obtained. Based on the method, the present invention also discloses a device controlling the operation rights of the communication terminal chip. The present invention controls the right control state of a communication terminal chip by software in order to effectively control the operation rights of the communication terminal chip, thus guaranteeing the safety of software systems and increasing the availability of the chip.
Description
technical field [0001] The invention relates to the technical field of chip security, in particular to a method and device for controlling the operation authority of a communication terminal chip. Background technique [0002] After the same batch of chips of communication terminals such as mobile phones are packaged and produced, some chips will be used to debug the software system of the communication terminal before the communication terminal is delivered to the user. In this case, the authority control state of the chip is in the debugging state, and the operation authority of the chip is to debug and process the system inside the chip, and the outside world can obtain the information of the system inside the chip, and can modify the information. If a communication terminal whose internal chip is in a debugging state is delivered to the user for use, the software system information of the communication terminal chip that should have been kept secret may be leaked. There...
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IPC IPC(8): H04Q7/32H04M3/22H04Q7/34G06F21/00G06F21/30
Inventor 刘宇鹿甲寅程由猛陈庆
Owner HUAWEI TECH CO LTD