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Method for communicating with secure removable storage device through file system

A mobile storage device and file system technology, applied in the direction of instruments, electrical digital data processing, etc., can solve the problems of reducing communication efficiency, data confusion, etc., achieve high security performance, simplify design, and avoid the effect of collision probability

Inactive Publication Date: 2014-11-26
万波 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem that other solutions mix identification codes in common data, which can easily cause data confusion and reduce communication efficiency

Method used

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  • Method for communicating with secure removable storage device through file system
  • Method for communicating with secure removable storage device through file system
  • Method for communicating with secure removable storage device through file system

Examples

Experimental program
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Embodiment Construction

[0032] Removable storage devices (such as USB disks, SD / MMC cards, etc.) are USB block transfer devices, which comply with the USB Bulk-only transfer protocol when performing ordinary data transfer. The storage of data on the mobile storage device complies with the FAT / NTFS file system standard. For ordinary applications, the host computer's access to the mobile storage device is generally implemented by reading and writing files, and the application program designer can only control the content written in the file. Since the device must be operated through the driver layer, the device cannot be directly operated. Therefore, it is difficult to control the specific storage address of the file written in the general method. Therefore, some current solutions that write to fixed storage addresses face many problems when they are actually implemented.

[0033] The invention monitors the file system in the mobile storage device, analyzes and obtains the storage location informatio...

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Abstract

The invention relates to a method for communicating with a secure removable storage device through a file system, in particular to a recognition method for command data and response data of a smart card security chip and common read-write data of the movable storage device, and belongs to the field of secure movable storage. According to the method, the storage location of an interface file is determined by analyzing the file system in the removable storage device, furthermore, the interface file is obtained, and therefore a command and a response are obtained. Based on the novel method for communicating with a secure chip through the removable storage device, recognition of interactive data between a host and the smart card security chip and the common read-write data of the movable storage device is achieved. Identification codes do not need to be inserted into the command data and response data to operate the smart card security chip. In this way, the problem that data confusion is easily caused as the identification codes are mixed into the common data is avoided, and additional processing flows which must be added for solving the data confusion problem are simplified.

Description

technical field [0001] The invention relates to a method for realizing communication with a safe mobile storage device through a file system, and belongs to the field of safe mobile storage. The secure mobile storage device is to build a smart card security chip on the existing mobile storage device, so that the mobile storage device has functions such as data encryption and decryption, digital certificate security authentication, and identity recognition. Background technique [0002] With the vigorous development of the mobile Internet and the popularization of smart mobile terminals, various e-commerce applications such as mobile payment, identity security authentication, and data encryption emerge in an endless stream. The requirements for information security are getting higher and higher. It is a very effective and common method to realize information security and identity authentication by using smart card security chip. [0003] Mobile storage products with USB dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38
Inventor 万波
Owner 万波
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