TWI448134B - A method for reading a portable data storage device for a playback platform - Google Patents

Description

Method for a portable platform to read a portable data storage device

The invention relates to a method for a portable platform to read a portable data storage device, in particular to a measure for protecting digital data.

Due to advances in computers and digital technologies, many of the content of creations and works, such as movies or music content, are converted into digital audio and video archives, which are then burned on CDs, DVDs, and other audio and video carriers for general use. Consumer use. The content of the creation and the work, in addition to movies or music, and even extended to lectures, teaching videos, stage plays, etc., can be converted into digital audio and video archives (hereinafter referred to as [digital data]).

However, due to the sophisticated compression and copying technology, the above-mentioned digital data, regardless of film or music content, can be easily formed into various file formats, reproduced through various techniques such as copying and burning, and even spread by the network. The medium provides a wider range of uploads and downloads, so that the copied content is transmitted and spread more distantly. As a result, the production of digital materials (especially music or movies) and the content of the work are easily broken by the environment provided by the technology, and there is no defense. It also makes many writers' low willingness to create. It is a great obstacle to the development of today's civilized society that values intellectual property rights. Therefore, how to create a copy of the obstacles to the content of the work through the protection of science and technology, and the protection of content, for many audio and video publications. The people in the industry, or even the performers and the lyricists, attach great importance to it, and are more in line with the legislative and artistic principles of the Basic Law of Science and Technology of China and related scientific and technological laws.

Furthermore, the aforementioned carriers, generally CDs, DVDs and the like are currently the mainstream of the market, but due to their repeated use technology, except for a small number of rewritable optical discs which can be repeatedly fired repeatedly, the repeated burning is repeated. The type of recording has not formed the popularity of early tapes, and due to the large volume, many current playback devices (such as MP3 players) have not been used simultaneously. Instead, the digital data is captured and copied from the aforementioned carrier to a memory card such as an SD card.

Press, the current memory card is mainly used for the storage of digital files (the purpose is the same as the disk, etc.). If it can actively form a carrier of digital data, and with the secure digital characteristics of Secured Digital Card (SD) (Secure Digital Memory Card) and its small size, it can meet the requirements of further forming a better digital data carrier. A security mechanism with high portability and wide applicability. In particular, the SD memory card currently on the market, in addition to the transmission speed and capacity has been greatly improved, and the technology is mature and the product price can be widely accepted. The conditions for making a memory card a better digital data carrier are more mature.

Although the music downloaded from the Internet is currently available, the DRM mechanism (DRM, the so-called Digital Right Management) is provided in the personal computer (PC) player, and the user can be offered the appropriate consideration (paid). In this case, a corresponding security protection mechanism can be provided, so that the digital data transmitted on the information can be freely copied and distributed by the person concerned. Or by limiting the identity of the downloader, the number of times, the limited time, and the copying within a limited number of copies, there is no appropriate protection mechanism for the carrier itself (especially the memory card).

In view of the previous problems, the inventors have devised a method for the playback platform to read the portable data storage device, including: (1) setting a platform application on the playback platform and setting the portable data storage device a first read command file and a second read command file; (2) generating a composite link file by a series of garbled characters and the encrypted digital data, and writing the composite link file to the first read command file, The digital data must be read by the second read command file, and the platform application can determine that the serial data meets the agreement defined by the two parties, and the platform application uses the encryption key generated by the composite link file to associate the data. After decryption, the identity identification ID (Identification) or the digital data can be obtained, and the right protection can be performed for the digital data.

The content and the embodiments of the present invention will be described in the following by means of the accompanying drawings, which will be further understood by the reviewer.

The portable data storage device provided by the invention can make all kinds of digital content on various platforms, and the playback platform can be a Windows PC with a Windows operating system, a Linux interactive multimedia information station (Linux Kiosk), Mobile phone with J2ME (Java 2 Platform, Micro Edition) program, mobile phone with Windows operating system, mobile phone with Symbain system, MP3 player, Personal Media Player (PMP), home stereo ('Home Stereo), Car Stereo and LCD flat-panel TVs. Use these playback platforms to use file open, file write and file The way the file is read is correcter than this ID. The specific operation process is shown in the first figure, including:

(1) setting a platform application on the playback platform, and setting a first read command file and a second read command file in the portable data storage device; and under the playback platform, the platform application is a file The open mode opens the first read command file (Command Window file) of the portable data storage device.

(2) Under the playback platform, the platform application generates a series of garbled and necessary materials (such as the command format and the encryption obtained from the rights object or the general object of the non-rights object according to the agreement between the two parties and the portable data storage device). Data, etc.) as the encryption operation of the first lock, and the above-mentioned series of garbled characters and necessary data are written into the first read command file (Command Window file) of the portable data storage device to become a composite link. files.

(3) Under the above various platforms, the platform application performs write temporary clearing or/and closes the first read command file (Command Window file) in the file close mode. To ensure that the composite link file is transmitted to the first read command file (Command Window file) of the portable data storage device via the reader device (Reader Device) of the portable data storage device.

(4) The portable data storage device determines that the composite link file conforms to the agreement defined by both parties. If not, only the original write action of the file system is performed. If so, in addition to the original file system to do a write operation, the row corresponding to the operation into the other, as taken in the data portability data storage device, the encrypted file and then written to the second read command (Command Window File). For example, the portable data storage device performs corresponding actions according to the agreement, such as extracting the encrypted data obtained by the right object from the composite link file, and decrypting and comparing the identity previously stored in the portable data storage device ( After ID), the comparison result is written (encrypted before writing), and the second read command file (Command Window file) is specified in the portable data storage device.

(5) In the above various platforms, the platform application opens the second read command file (Command Window file) of the portable data storage device in the file open mode.

(6) In the above various platforms, the platform application reads the composite link file (a series of data) from the second read command file (Command Window file) of the portable data storage device by means of file reading. . And determine whether it meets the agreement defined by both parties. If it does not match, it is displayed as an error message. If it is, proceed to (7).

(7) If the platform application determines that the series of data conforms to the agreement defined by the two parties, the platform application decrypts the related data by using the encryption key generated by the last write of the first read command file (Command Window file). After that, you can get the true identity recognition (ID) comparison results.

(8) The platform application performs the action of closing the second read command file (Command Window file).

The present invention acts as a first lock by encrypting a series of garbled characters and necessary materials (such as a command format and encrypted data obtained from a right object or a general object of a non-right object), and the digital data must pass through the first The second reading command file is read, and the platform application can determine that the serial data conforms to the agreement defined by the two parties, and the platform application uses the encryption key generated by the composite link file to decrypt the related data, thereby obtaining the identity identification. The ID (Identification) or the digital data is used as the encryption function of the second lock, so that the right protection can be performed for the digital data. It can provide a digital information that the user has the right to copyright in the portable data storage device (carrier) at the appropriate price (paying), and is a fairly secure protection mechanism. Even if the object is not copyrighted, the security of privacy can be obtained, so that the digital data transmitted on the information can be freely copied and distributed by the person concerned.

In summary, the present invention is indeed in line with industrial utilization, and is not found in publications or publicly used before application, nor is it known to the public, and has non-obvious knowledge, conforms to patentable requirements, and patents are filed according to law. .

However, the above description is a preferred embodiment of the industry of the present invention, and all the equivalent changes made by the scope of the patent application of the present invention are within the scope of the claim.

The first figure is a specific flow chart of the present invention

Claims (6)

A method for a portable platform to read a portable data storage device includes: (1) setting a platform application on the playback platform, and setting a first read command file and a first in the portable data storage device Second, reading the command file; (2) generating a composite link file between the serial garbled and the encrypted digital data, and writing the composite link file to the first read command file, so that the digital data must pass through the second read The command file is read, and the platform application can determine that the series of data conforms to the agreement defined by the two parties, and the platform application decrypts the related data by using the encryption key generated by the composite link file to obtain the identity identification ID (Identification) ) or the digital data, and the formation of a two-way right protection for digital data. The method for reading a portable data storage device according to the first aspect of the patent application, wherein the generating a series of garbled and encrypted digital rights data to generate a composite link file is based on a platform application of the playback platform. Agreement between the program and the portable data storage device. The method for reading the portable data storage device by the playable platform as described in claim 1, wherein the playback platform is selected from a computer with a Windows operating system (Windows PC) and a Linux interactive multimedia information station ( Linux Kiosk), mobile phone with J2ME (Java 2 Platform, Micro Edition) program, mobile phone with Windows operating system, mobile phone with Symbain system, MP3 player, personal media player Personal media player (PMP), home stereo ('Home Stereo), car stereo (Car Stereo) and LCD flat TV group playback platform. The method for reading the portable data storage device by the playable platform as described in claim 1 is that the digital data includes a command format and an encryption key. The method for reading the portable data storage device by the playable platform as described in claim 1 is that the first read command file is a command file of the window operating system. The method for reading the portable data storage device by the playable platform as described in claim 1 is that the digital data is a digital data having rights attributes.