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Data accessing system

A data access and storage device technology, applied in transmission systems, electrical digital data processing, prevention of unauthorized use of memory, etc., can solve problems such as leakage of confidential data and lack of security check functions

Inactive Publication Date: 2009-09-16
POWERFLASH TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if these portable storage devices store personal confidential data, then due to the lack of security check function, when these portable storage devices are lost, personal confidential data also has a great chance to leak out.

Method used

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Examples

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Embodiment Construction

[0009] Please refer to figure 1 , figure 1 It is a schematic diagram of the data access system of the present invention. Such as figure 1 As shown, the data access system 100 includes a host 110 and a storage device (in the present invention, a portable storage device 120 is taken as an example), wherein the host 110 includes a first identity code storage block 112 to store a first Identification code ID1, and a security setting function 126, portable storage device 120 includes a second identification code storage block 122 for storing a second identification code ID2, a data storage block 124, a security Property check function 128, a data read / write enable control code DRW, an identification code write not enable control code ICW, in the present embodiment, data read / write enable control code DRW and identification code The writing disable control code ICW is a control bit. In this embodiment, the host 110 can be a computer, a notebook computer, a mobile phone, etc.; an...

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PUM

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Abstract

A data access system includes a host and a storage device. The host has a security setup function and includes a first identity code storage block to store a first identity code. The storage device has a security check function and includes a second identity code storage block. The host executes the security setup function to set a second identity code according to the first identity code, and the second identity code is stored into the second identity code storage block. The storage device executes the security check function to determine if the host is allowed to access the storage device according to the first and second identity codes.

Description

technical field [0001] The invention relates to a data access system, in particular to a data access system with security setting and security checking functions. Background technique [0002] In general portable storage devices, such as MMC, CF and other memory cards or other flash memory (Flash memory), are usually used to access data between different hosts conveniently and quickly, so these portable storage devices will not It has a security check function, that is, each host can access these portable storage devices. However, if these portable storage devices store personal confidential data, then due to the lack of security check function, when these portable storage devices are lost, personal confidential data also has a great chance to leak out. Contents of the invention [0003] Therefore, one of the objects of the present invention is to provide a data access system with security setting function and security checking function, so that the portable storage devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/14G06F21/00G06K19/073
CPCH04L63/0492G06F21/78H04L63/08G06F21/73G06F2221/2129G06F21/6209H04L63/1441
Inventor 郭东政杨青松林瑞霖刘承杰
Owner POWERFLASH TECH CORP