TW201019162A - Method and system for locally activating a DRM engine - Google Patents

Abstract

A method for locally activating a DRM engine is disclosed. A preprocessing operation is performed, wherein rights object is bound or separately stored with digital content files with a first format; the digital content has an appropriate authentication code for the purpose of performing authentication. The digital content files with the first format are converted to the digital content files with a second format. The digital content files with the second format file are encrypted and a corresponding decryption key is generated. The encrypted digital content files and the decryption key are stored in a memory device. An application is designed and installed on the memory device and the memory device is installed to the electronic device. The application is authenticated according to the authentication code of the digital contents, decrypts the encrypted digital content files using the decryption key, wherein the digital content files with the second format can be recovered from the third format, and activates a DRM engine of the electronic device. The DRM engine binds an IMEI code of the electronic device with the digital content files and the rights object, enabling the digital content files to only be accessed by the specific electronic device.

Description

201019162 IX. INSTRUCTIONS: TECHNICAL FIELD OF THE INVENTION The present invention relates to data encryption and decryption, and more particularly to a method and system for locally initiating a Digital Rights Management (DRM) engine. [Prior Art] ❿ Digital content can be delivered via On-Line or Off-Line. Online delivery is the download of digital content via the Internet, such as flashing via a specific storage medium (eg, a disc, a Digital Video Disk (DVD), or a portable electronic device (eg, a mobile phone). A memory device (for example, a Secure Digital (SD) memory card or a Universal Serial Bus (USB) disk) is used to pre-record digital content. Offline transfer of Content Protection for Recording Media (CRM) and Content Protection for Recordable Media (CPRM) or Pre-recorded Media for SD-RW and DVD-RW (c) 〇ntem

Protection for Pre-Recorded Media, CPPM). The use of digital content is subject to the processing of a digital rights management system to ensure that the digital content of the payload is not illegally used or pirated. Figure 1 is a flow chart showing the method steps of a conventional digital rights management engine. The pre-processed digital content file is stored on the Internet.

Patent VIII/9034-A41794-TW / Draft-Final 201019162 (step S11). After the consumer obtains the authorization, the preprocessed digital content file is downloaded and stored in an electronic device (for example, a personal computer or a mobile phone) (step S12), and simultaneously activates the digital rights management engine on the electronic device ( Step S13). Combining the pre-processed digital content building with an International Mobile Electron Identification (IMEI) and a rights object held by the electronic device (step S14) to convert the pre-processed digital content file by using a digital rights management engine A file that can only be used on the electronic device (step S15). The above methods include DRM processing of the Open Mobile Alliance (OMA), Windows Media DRM 10 (WMDRM-ND) processing of the network device, and FairPlayTM processing of the Apple system. Taking OMA DRM processing as an example, the file format of the original digital content slot is a video file such as .3gp or .mp3. 〇ma DRM will perform a pre-processing to convert the .3gp file into a .dm (DRMMaterial) file, and then store the dm file on a file server for download. After the consumer purchases the digital content file online and obtains the rights object (Rights 〇bject), that is, the file on the server is downloaded to the consumer's electronic device. The digital rights management engine of the electronic device links the rights object and its inner code to the digital content (Bind), and converts the dm file into a .dcf (DRM Content Format) structure. After this processing, the digital content file of the dcf file can only be used in the manner given by the specific electronic device in accordance with the rights object. However, the drawback of the above method is that it is only applicable to online delivery, and its digital rights management method may violate consumers' traditional use of content.

Patent_Vm/9034-A41794-TW / Draft-Final 201019162 and Rights and Usage (TRU). Figure 2 is a flow chart showing the steps of another conventional digital rights management engine processing method. The preprocessed digital content file is stored in the built-in memory of the electronic device to encrypt the preprocessed digital content file (step S21). The rights object of the digital content file can be downloaded (step S22) via the network (for example, the Internet) and stored in the electronic device (step S23), and the digital rights management engine of the electronic device is activated (step 10) S24). The digital rights management engine first decrypts the preprocessed digital content file (step S25) 'Connecting the internal code and the rights object of the electronic device to the digital content file (step S26), and converting the digital content file into a new file format (Step S27). Therefore, the digital content file can only be used on this particular electronic device. For example, the file format of the Windows Media DRM (WMDRM-PD) of the portable device is asf (Advanced System I Format). The above method is applicable to portable electronic devices, but the rights object needs to be transmitted separately. Although the security is slightly improved, it still cannot get rid of the dependence on the network. Figure 3 is a flow chart showing the steps of another conventional digital rights management engine. The digital rights management engine supported by the electronic device is not utilized, and the digital rights management mechanism of the own is not used (step S3i). The digital content floor is just processed and converted into a file format that can be processed by a self-designed digital rights management engine or system (step S32). Therefore, within the digit

Patent_Vm/9034-A41794-TW / Draft-Final 201019162 The container can only be accessed by the electronic device containing the self-designed digital rights management engine or system (step S33). The above methods face the following problems: 1) the programming of this program is vast; 2) this program may occupy a large memory space; 3) the digital rights management mechanism is usually closely related to the bottom of the operating system platform, and there will be compatibility. The problem; and 4) because it is written by itself, it lacks experience in the industry and it is difficult to gain the trust of the content industry. SUMMARY OF THE INVENTION The object of the present invention is to provide a method and system for locally initiating a digital rights management engine. Based on the above objective, an embodiment of the present invention discloses a method for locally starting a number of bit rights management engine, which is applied to an electronic device. A pre-processing operation is performed, which stores or links the rights object separately from the digital content file of the first file format, and the digital content file has a unique authentication code for verification. The digital content file of the first file format is converted into a digital content file of a second file format, and the digital content file of the second file format is encrypted and a corresponding decryption key is generated. The encrypted digital content file and the decryption key are stored in a memory device, and if the rights object is stored separately, the rights object is stored in a hidden area of the memory. Use an application to perform operations such as authentication, file decryption, digital rights management engine startup and security control. The application is installed in the memory device and the memory device is mounted in the electronic device. Determining the application according to the authentication code of the digital content file, and decrypting the encrypted digital content file by using the decryption key, wherein the digital content file from a third file format is restored to the second Within the file format

Patent VIII/9034-A41794-TW/Draft-Final 201019162 Capacity. The digital rights management engine of the electronic device is activated by the application, and the digital content (IMEI) is linked to the digital content and the rights object by the digital rights management engine to make the digital content file It can only be accessed by the electronic device. Embodiments of the present invention further disclose a system for locally initiating a digital rights management engine' comprising a memory device and an electronic device. The memory device provides a memory location for storing a digital content file and an application, wherein the application performs operations such as verification, file decryption, digital rights management engine startup and security control, and the digital content file utilizes an encryption method Encrypt with a decryption key. The electronic device provides a digital rights management engine. When the memory device is installed on the electronic device, the application performs verification according to the authentication code of the digital content file, and uses the decryption key to decrypt the encrypted digital content file, wherein the digital content of the first file format is constructed. Convert to a digital content file in a second standard format and launch the digital rights management engine. The digital rights management engine converts the digital trough of the second file format into a digital content broadcast of a third file format, and links an inner code (IMEI) of the electronic device to the digital content file and the rights object. The digital content file is made accessible only to the electronic device. The embodiment of the invention further discloses a method for locally starting a digital rights management engine, which is applied to an electronic device. A pre-processing operation is performed to convert the digital content file of the first file format into the intra-database file of the second file format. Kaxiong, the digital content format of the second slot format, converts the digital content file of the second audit format into a digital content file of a third file format, and generates a corresponding decryption key. The encrypted digital content file

The Patent_Vm/9034-A41794-TW / Draft-Final 201019162 is stored in the respective memory locations of the memory device with the decryption key. An application is used to perform operations such as authentication, file decryption, digital rights management engine startup and security control, and the application is installed in the memory device. The memory device is installed in the electronic device, and the application is verified based on the authentication code of the digital content file. The encrypted digital content file is decrypted by the application and using the decryption key, wherein the digital content file from the third file format is restored to the digital content file of the second file format. Launching, by the application, a digital rights management engine of the electronic device, and the digital content file of the second file format and the right object of the digital content and the inner code of the electronic device by the digital rights management engine The link is such that the digital content file can only be accessed by the electronic device. The embodiment of the invention further discloses a system for locally starting a digital rights management engine, comprising a memory device and an electronic device. The memory device provides a memory location for storing a digital content file, an application, an authentication code, and a rights object, wherein the digital content file is encrypted using an encryption method @ and a decryption key, such that a first file is The digital content file of the format is converted into a digital content file of a second file format, and the digital content file of the second file format is converted into a digital content file of a third file format. The electronic device provides a digital rights management engine that performs operations such as authentication, file decryption, digital rights management engine initiation, and security control. When the memory device is installed to the electronic device, the application verifies according to the authentication code of the digital content file, and uses the decryption key to decrypt the encrypted digital content file, wherein the digital content from the third file format

Patent VIII/9034-A41794-TW/Draft-Final 11 201019162 restores the digital content file to the second file format and activates the digital rights management engine of the electronic device. The digital rights management engine couples the digital content file of the second file format with the rights object of the digital content and an internal code of the electronic device such that the digital content file is only accessible for use by the electronic device. DETAILED DESCRIPTION OF THE INVENTION In order to make the objects, features, and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are described in detail below with reference to Figures 4 through 7 of the drawings. The present specification provides various embodiments to illustrate the technical features of various embodiments of the present invention. The arrangement of the various elements in the embodiments is for illustrative purposes and is not intended to limit the invention. In the embodiments, the portions of the drawings are repeated for the sake of simplicity of the description, and the meaning of the different embodiments is not intended. The embodiment of the invention discloses a method and system for locally starting a digital rights management engine. The method and system for locally implementing the digital rights management engine of the present invention are applicable to a portable flash memory device (for example, a Secure Digital (SD) memory card, a universal serial stream (

SerialBus, ·)) Disk) or embedded flash memory device in an electronic device to generate a digital rights management mechanism different from the network system. The digital rights management mechanism utilizes the digital rights management engine of the electronic device to overcome the compatibility problem between the digital rights management engine and the operating system of the electronic device. Figure 4 is a flow chart showing the method steps of the partial start digital rights management Pat gas VIII/9034-A41794-TW / Draft-Final 12 201019162 engine of the embodiment of the present invention. The I, #' processing operation' in which the rights object is linked to the digital content file '" (in step s401), the digital content file has a dedicated certificate for verification. Will be in a file format (for example, Ο·

The .3gP β digital content file is converted to the second file format (for example, OMA

The digital content floor of the 'Dm file of DRM-10 (step S402), which can only be recognized by the digital rights management engine of the specific electronic device. For example, first use the OMA 1.0 content wrapper (for example, s〇NY_Ericss〇n's drm raw digits are converted to .dm slots, at which point the rights object has been wrapped with the inner ~. Due to OMA's digital rights management The engine product must be started and the network transfer program can not be used by the general electronic device. However, for those skilled in the process, the dm file can be copied to the file server. After the road is downloaded, it can be used, so it must be protected by another layer. Therefore, the download of the file is encrypted, and the digital content file of the second file format is encrypted, which utilizes an encryption mechanism (for example, advanced An Encryption System (AES), a 3 Data Encryption System (3DES), a Twofish, etc., encrypt the digital content file of the second file format, wherein the second file is Converting the formatted digital content file to a digital content file of the third file format (eg, .aes file) 'generates a corresponding decryption key (step S403). The encrypted digital content The file and the decryption key are respectively stored in respective memory locations of a memory device (for example, an SD memory card) (for example,

Patent_VIII/9034-A41794-TW / Draft-Final 13 201019162

The digital content file is stored in the public area, and the decryption key is stored in the hidden area (step S404). The decryption key can also be stored in the memory device or in an application that has been compiled into a machine language and cannot be recognized for enhanced protection. Designing an application using a programming language (for example, C++) to perform operations such as verification, file decryption, digital rights management engine startup and security control (step S405), and installing the application on the memory device (step S406) . When the memory device is installed in the electronic device (step S407), the application is verified based on the authentication code of the digital content file (step S408). The authentication code can be a unique serial number of the digital content file or a unique serial number of the memory device. After successful verification, the application uses the decryption key to decrypt the encrypted digital content broadcast 'in the third (four) format (ae〇 digital content file is restored to the second file format (.dm) digital content slot ( Step S409), and locally launching the digital rights management engine of the electronic device (step S410). The digital rights management engine converts the digital content file of the second slot format (plus) into the digital content of the fourth file format (dcf) File (step S4H), and the electronic device - imei is linked to the field digital content file (the rights object and the digital content file have been linked in the previous program #在在起X(四)S4U) 'making the (four) content slot It can only be accessed and used by the electronic device (step S413). It should be noted that when the memory device is removed from the electronic device or the electronic device is launched before the digital rights management engine of the electronic device is started, the application executes Security control to delete the encrypted digital content file. Figure 5 shows the partial boot digital rights management of the embodiment of the present invention.

Patent—ΥΠΙ/9034-Α41794-TW / Draft-Final 14 201019162 Schematic diagram of the system architecture of the engine. The system includes a memory device 500 and an electronic device 600. The electronic device is a digital rights management engine 630. The memory device 5 provides a memory location 550 (eg, a hidden area and a public area) to store the digital content file 551, the authentication code 552 of the digital content file 551, a decryption key 553, and an application 555, wherein the digital content file The 551 is encrypted by an encryption method and a decryption key 553. If AES is used to process the digital content file 551, the format of the digital content file 5S1 is • aes 设计 design application 555 using a programming language (for example, C++) to perform verification, file decryption, digital rights management engine startup and security control, etc. operating. When the memory device 5 is mounted to the electronic device 6, the application 555 authorizes according to the authentication code 552 of the digital content file 551. The authentication code 552 can be a unique serial number of the digital content file 551 or a unique serial number of the memory device. Upon successful verification, the application 555 decrypts φ the encrypted digital content file 551 using the decryption key 553, wherein the digital file file 551 from a third file format (.aes) is restored to the second file format (dm). The digital content slot 551' and partially activates the digital rights management engine 610 of the electronic device 600. The digital rights management engine 61 converts the digital content file 551 of the second file format (dm) into the digital content floor 551 of the first file format (dcf), and the internal code (ιΜΕι) of the electronic device and the digital content The file 551 is linked (the rights object and the digital content file 551 have been linked together in the front sequence) so that the digital content file 551 can only be accessed and used by the power device 6.

Patent_VIII/9034-A41794-TW / Draft-Final 15 201019162 A second embodiment of the present invention discloses another example of a method and system for locally initiating a digital rights management engine. The method and system for locally enabling the digital rights management engine in the embodiments of the present invention are applicable to a portable flash memory device (for example, Secure Digital (SD) memory, card, universal serial stream (-s ' _) disk or embedded flash memory device in an electronic device to generate a digital rights management mechanism different from the network system. The digital rights management mechanism utilizes the digital rights management engine of the electronic device to overcome the compatibility problem between the digital rights management engine and the operating system of the electronic device. Figure 6 is a flow chart showing the steps of a method for locally initiating a digital rights management engine in accordance with another embodiment of the present invention. Performing a pre-processing operation to convert the digital content file of the first file format (for example, .3gP file of 〇MA) into the digital content file of the second file format (for example, dMA DRM 1.0.dcf) (step 6〇 1), which can only be recognized by the digital rights management engine of a particular electronic device, and needs to be combined with its corresponding rights object to be used. For example, the original digital content file is first converted to .dcf by the 〇MA U content wrapper (such as SONY-Ericsson's DRM Packager), and the corresponding one of the rights objects is also generated simultaneously 'but not with The digital content file of this second file format is linked. It should be noted that the .dcf file in this embodiment is different from the .dcf file in Figure 4, and the rights object is not used for encryption. This file has been encrypted and is basically not illegally authorized.

Patent VIII/9034-A41794_TW / Draft-Final 16 201019162 concerns. However, in order to enhance its protection mechanism, in this implementation, an encryption mechanism (such as 'Advanced Encryption System' AES), 3 Data Encryption System (3DES), Twofisli (Pisces)... And so on) encrypting the digital content file of the second file format, wherein the digital content file of the second rights format is converted into a digital content right of the third slot format (eg, .aes file), and a corresponding decryption is generated Key (step 602). The encrypted digital content rights and the decryption key are stored in respective memory locations of a memory device (eg, an SD memory card) (eg, storing the digital content file in the public area to store the decryption key in the hidden area) (Step 603). The decryption key can also be stored in the memory device or in an application that has been compiled into a machine language and cannot be recognized for enhanced protection. Designing an application using a programming language (eg, C++) to perform operations such as verification, file decryption, digital rights management engine startup and security control (step 604) 'and installing the application on the memory device (step _ 605). When the memory device is installed in the electronic device (step 606), the application is verified based on the authentication code of the digital content file (step 607). The authentication code can be a dedicated serial number of the digital content file or a unique serial number of the memory device. After successful verification, the application decrypts the encrypted digital content file by using the decryption key, wherein the number from the third file (aes) = content slot is restored to the second file format (.dcf) The digital content is checked (step S608)' and the digital rights management engine of the electronic device is locally activated (step S609). The digital rights management engine will be in the second file format (dcf)

Patent_VIII/9034-A41794-TW / Draft-Final 17 201019162 The digital content file is combined with the rights object and one of the electronic device internal code (IMEI) to become the digital file of the fourth file format (.dcf) of the same name (step 610), such that the digital content file is only accessible for use by the electronic device (step 611). It is noted that when the memory device is removed from the electronic device or the electronic device is turned off prior to activation of the electronic device's digital rights management engine, the application performs security controls to delete the encrypted digital content file. Figure 7 is a block diagram showing the system architecture of the Partially Launched Digital Rights ® Management Engine of another embodiment of the present invention. The system includes a memory device 700 and an electronic device 800. The electronic device 800 provides a digital rights management engine 810. The memory device 700 provides a memory location 750 (eg, a hidden area and a public area) to store an authentication code 752, a decryption key 753, an application 755, a rights object 757, of the digital content file 75. The digital content file 751 is encrypted with an encryption key 753 using an encryption method. If AES is used to process the digital content file 751, the format of the digital content file 751 is .aes. The stomach uses a programming language (e.g., C++) to design the application 755 to perform operations such as verification, file decryption, digital rights management engine startup, and security control. When the memory device 700 is mounted to the electronic device 800, the application 755 verifies based on the authentication code 752 of the digital content file 751. The authentication code 752 can be a unique serial number of the digital content file 751 or a unique serial number of the memory device 700. Upon successful verification, the application 755 decrypts the encrypted digital content file 751 using the decryption key, wherein from a third file format (.aes)

Patent_VIII/9034-A41794-TW / Draft-Final 18 201019162 The digital content file 751 is restored to the digital content file 751 of the second file format (dcf), and the digital rights management engine 810 of the electronic device 8 is locally activated. The digital rights management engine 81 combines the digital content file 751 of the second file format (dcf) with the rights object 757 and an internal code (IMEI) of the electronic device 8 to become a digital file of the fourth file format (dcf) of the same name. The content file 751 is such that the digital content file 751 can only be accessed by the electronic device 8 (8).

The method and system for partially starting the digital rights management engine in the embodiment of the present invention are applicable to offline transmission of a portable electronic device or a portable flash memory device, and establish a digital content file that can be independent of the network system. Offline delivery with corresponding digital rights management. In addition, the present invention further provides a self-designed digital rights management engine that activates a particular f-sub-device to overcome compatibility issues between the operating system of a particular electronic device and the digital rights management engine. The method of the invention, or a particular version or portion thereof, may exist in the form of a code. The code can be included in physical media, such as floppy disks, CDs, hard drives, or any other machine readable (such as computer readable) storage media 'where' when the code is loaded by a machine, such as a computer and executed At this time, the machine is referred to to participate in the assembly of the present invention. The code can also be transmitted via some transmission medium such as wire or thin, optical fiber, or any transmission bear. When the code is received by the machine, such as a computer, the machine becomes active. The device of the invention. When implemented in a general purpose processing unit, the code is combined with a processing unit to provide a unique device that operates similar to the application specific logic. '

Patent_Vni/9034-A41794-TW / Draft-Final 19 201019162 Although the present invention has been disclosed in the above preferred embodiments, the present invention is intended to be limited to the scope of the invention. The scope of protection of the present invention is defined by the scope of the appended claims. [Simple description of the diagram] Figure 1 is a flow chart showing the method steps of the traditional digital rights management engine.

Figure 2 is a flow chart showing the steps of another conventional digital rights management engine processing method. Figure 3 is a flow chart showing the steps of another conventional digital rights management engine. Figure 4 is a flow chart showing the steps of a method for locally initiating a digital rights management engine in accordance with an embodiment of the present invention. Figure 5 is a schematic diagram showing the system architecture of the local boot digital rights management engine of the embodiment of the present invention.

Figure 6 is a flow chart showing the method steps of another management engine of the present invention. Figure 7 is a schematic diagram showing the system architecture of another management engine of the present invention. [Description of main component symbols] Locally activated digital rights of the embodiment Locally activated digital rights of the embodiment 500, 700~memory device 550, 750~memory location 551, 751~digital content file

Patent_VIII/9034-A41794-TW / Draft-Final 201019162 552, 752~ authentication code 553, 753~ decryption key 555, 755~ application 757~ rights object 600, 800~ electronic device 610, 810~ digital rights management engine 511. 515~Process step 521.. 527~ process step 531.. 533~ process step 5401.. 5413~ process step 5601.. 5611~ process step

Patent VIII/9034-A41794-TW/Draft-Final

Claims (1)

201019162 X. Patent application scope: 1. A method for locally starting a digital rights management engine, which is applied to an electronic device, comprising the following steps: performing a pre-processing operation, which uses a rights object and a digital content file of a first file format. Separatingly storing or linking together; converting the digital content file of the first file format into a digital content file of a second file format; encrypting the digital content file of the second file format and generating a corresponding decryption key; Encrypting the digital content file and the decryption key are stored in a respective memory location of the memory device; performing an operation such as verification, file decryption, digital rights management engine startup and security control by using an application; installing the application in the a memory device; installing the memory device into the electronic device; • authenticating the application according to the authentication code of the digital content file; and decrypting the encrypted digital content file by using the decryption key by the application, wherein Restore from a third file format digital content file to the second file a digital content file of the file format; the digital rights management engine of the electronic device is activated by the application; and the digital code is linked to the digital content file and the rights object by the digital rights management engine The digital content file can only be accessed by the electronic device. 2. A method for locally initiating a digital rights management engine according to claim 1, wherein the digital content file of the second file format can only be used by the method of claim 2, wherein the digital content file of the second file format can only be The digital rights management engine of the electronic device recognizes. 3. The method of claim 3, wherein the step of encrypting the digital content file further comprises converting the digital content file of the second file format to the third file format. Digital content file. 4. A method of locally initiating a digital rights management engine as described in claim 1, wherein the decryption key is stored in the memory device. 5. A method of locally initiating a digital rights management engine as described in claim 1, wherein the authentication code is a unique serial number of the digital content file or a unique serial number of the memory device. 6. The method for locally initiating a digital rights management engine according to claim 1, further comprising converting the digital content file of the second file format into a fourth file format when the digital rights management engine is activated ® digital content file. 7. A system for locally launching a digital rights management engine, comprising: a memory device that provides a memory location for storing a digital content file, an application, an authentication code, and a rights object, wherein the digital content file Encrypting with an encryption method and a decryption key; and an electronic device providing a digital rights management engine, wherein the application performs operations such as verification, file decryption, digital rights management engine startup and security control; Patent VIII/9034- A41794-TW/Draft-Final 23 201019162 wherein, when the memory device is installed to the electronic device, the application performs verification according to the authentication code of the digital content file, and decrypts the encrypted digital content file by using the decryption key, wherein Converting a digital file of a first file format into a digital content file of a second file format, and initiating the digital rights management engine, the digital rights management engine converting the digital content file of the second file format into a third file a digital content file in the file format, and the inner code of the electronic device and the number Link file content so that the digital content files can only be accessed using the electronic device. 8. The system for locally activated digital rights management engine of claim 7, wherein the decryption key is stored in the memory device. 9. The system for locally activated digital rights management engine of claim 7, wherein the authentication code is a unique serial number of the digital content file or a unique serial number of the memory device. 10. A computer recordable medium for storing a computer program, the computer program comprising a plurality of code segments for loading into a computer system and causing the computer system to perform a method of locally launching a digital rights management engine The method is applied to an electronic device, comprising: performing a pre-processing operation, separately storing or linking the rights object to a digital content file of a first file format; converting the digital content file of the first file format into one a digital content file of the second file format; encrypting the digital content file of the second file format and generating a corresponding decryption key; Patent_VIII/9034-A41794-TW / Draft-Final 24 201019162 encrypting the encrypted digital content file with the decryption key Storing in a memory device; performing an operation such as verification, file decryption, digital rights management engine startup and security control by an application; installing the application in the memory device; installing the memory device to the electronic device The application is executed according to the authentication code of the digital content file Verifying, by the application and using the decryption key, the encrypted digital content file, wherein the digital content file from a third file format is restored to the digital content file of the second file format; a digital rights management engine of the electronic device; and connecting the internal code of the electronic device to the digital content file and the rights object by the digital rights management engine, so that the digital content file can only be accessed by the electronic device . 11. The computer recordable medium of claim 10, wherein the digital content file of the second file format is only identifiable by the digital rights management engine of the electronic device. 12. The computer recordable medium of claim 10, wherein the step of encrypting the digital content file further comprises converting the digital content file of the second file format into a digital content file of the third file format. 13. The computer recordable medium of claim 10, wherein the decryption key is stored in the memory device. 14. The computer recordable medium according to claim 10, Patent_VIII/9034-A41794-TW / Draft-Final 25 201019162 wherein the authentication code may be a unique serial number of the digital content file or the memory device One of the unique serial numbers. 15. The computer recordable medium of claim 10, further comprising converting the digital content file of the second file format into a digital content of a fourth file format when the digital rights management engine is activated. files. 16. A method of locally initiating a digital rights management engine for use in an electronic device comprising the steps of: performing a pre-processing operation to convert a digital content file of a first file format into a digit of a second file format a content file; encrypting the digital content file of the second file format to convert the digital content file of the second file format into a digital content file of a third file format, and simultaneously generating a corresponding decryption key; The file and the decryption key are stored in a respective memory location of the memory device; an application is used to perform verification, file decryption, digital rights management engine startup and security control, etc.; and the application is installed in the memory device Installing the memory device into the electronic device; authenticating the application according to the authentication code of the digital content file; and decrypting the encrypted digital content file by the application and using the decryption key, wherein the third Retrieving the digital content file of the file format to the digital content file of the second file format; The digital rights management engine of the electronic device is started by the application; and the digital content file of the second file format is matched with the digital content by the digital rights management engine by Patent_VIII/9034-A41794-IW / Draft-Final 26 201019162 The rights object and one of the electronic devices are coded such that the digital content file can only be accessed by the electronic device. 17. A system for locally launching a digital rights management engine, comprising: a memory device that provides a memory location for storing digital content tags, an application, an authentication device, and a rights object, wherein the digital content file utilizes An encryption method is encrypted with a decryption key, so that the digital content file of the first file format is converted into the digital content file of the second file format, and the digital content file of the second file format is converted into a third file. a formatted digital content file; and an electronic device providing a digital rights management engine, wherein the application performs operations such as verification, file decryption, digital rights management engine startup and security control; wherein, when the memory device is installed to In the electronic device, the application appeals to decrypt the encrypted digital content right, wherein the digital content from the third file format is restored to the digital content slot of the second file format, and the digital device is activated.士丨篇?丨*_ Can be accessed by the electronic device. The program verifies according to the number of authentications, and uses the decryption record and the right to manage the digital content to make the digital content file only Patent_Vni/9034-A41794-TW / Draft-Final