KR100509970B1 - Flash player equipment and service method apply contants copyright protection method to flash file - Google Patents

Abstract

The present invention is applied to a flash player service method for implementing a video-based e-book and a game by applying a copyright protection method to a flash file (extension swf) of Macromedia, Inc. The present invention relates to the development and service of a dedicated flash player device based on an external memory card that is played only on a corresponding flash player device by applying a copyright protection content authentication program, and displays an external image such as an existing monitor 62. By connecting to a device to drive a large screen, or by using a portable flash player device integrated with LCD to implement a flash file-based e-books and games there is an effect that can be used economically and conveniently compared to the conventional PC.

Description

Flash player service method applying content copyright protection method to flash file {FLASH PLAYER EQUIPMENT AND SERVICE METHOD APPLY CONTANTS COPYRIGHT PROTECTION METHOD TO FLASH FILE}

The present invention relates to a dedicated flash player device and a control method for implementing a flash file-based e-book and a game to which a content verification program is applied to protect the rights of a copyright holder of a flash file (extension swf). The present invention relates to an external memory card-based dedicated flash player service method to which a content authentication program for assigning a unique number (hereinafter referred to as an ID) for each and driving a content only in a corresponding flash player device is applied.

In general, a terminal that implements an e-book provides simple content based on texts and pictures, and produces and distributes a software viewer (Software Viewer) that implements a dedicated e-book by company or product (PC, PDA, e-Book, etc.). By encrypting the content so that it runs only on the product to which the viewer is applied, users who have the viewer can share each other without restriction, so the copyright protection of the content is not properly performed. Due to the unique production algorithm applied, there was a problem that content was not widely distributed.

At present, video animations using Macromedia's Flash file (extension swf) have been spreading as a generalized method for implementing video contents rather than simple contents based on text and pictures.

Conventional animation production method is a method of creating a video by connecting several graphics such as bitmaps (BMP, JPG, GIF, etc.), which takes a long time and takes a lot of capacity. By using the vector method of storing the image, the capacity is very small and the image quality is good without the phenomenon that the pixels of the image are broken even when the unlimited zoom in or out.

In addition, these flash files are interactive and have the ability to change their contents as the mouse moves. They are used for animation-based user interfaces, fairy tales, games, etc. Since it is standardized and easy to use, anyone with a basic knowledge of graphics could easily learn.

In other words, Flash files are the most widely used Internet technology on the PC, which is the easiest way to create a video file that can be displayed in the smallest size and the fastest speed, and the flash player program is distributed in almost all web browsers. It is implemented in.

Due to the advantages of the flash file as described above, in the case of video fairy tales made of the flash file, children can increase their learning ability by inducing interest, and many internet websites provide a video e-book service.

However, in order to access the web site on the PC to view the contents of the flash file, children usually need to register and enter a customer ID and password every time after joining. In addition, despite the large educational and entertainment effects, such as the problem of accessing harmful sites directly or indirectly, there were problems in use.

In addition, in order to protect the copyright of the flash file contents, service providers often do not provide a download service in which the contents are stored on the PC and used freely.

The present invention for solving the above problems is to provide a flash player service method applying the content copyright protection method to a flash file.

In addition, the present invention is to purchase and use the external memory card with the copyright-protected content, and to download and use the copyright-protected content via the Internet to the external memory card to save and use only in the flash player device The present invention provides a flash player service method in which a content copyright protection method is applied to a flash file so that it can be legally used.

The flash player device to which the content copyright protection method is applied to the flash file of the present invention for achieving the above object includes a power supply unit 10 for supplying power to the system, a flash player drive program, and an authentication program for content protection. ROM 20 stored therein, CPU 30 for controlling the entire system, external memory card 42 mounted thereon and controlling the external memory unit 40, programs and external memory in the ROM 20 RAM 50 for reading the contents of the external memory card 42 mounted in the unit 40 to drive the program, and a video output unit 60 connected to the monitor 62 and outputting a video signal. And an audio output unit 70 connected to the speaker 72 and outputting an audio signal, and a signal input unit 80 for inputting and controlling signals using a remote controller, a mouse, a keyboard, etc., which are signal input devices 82; , printer That of which is formed of a variety of peripheral peripheral connection portion 90 is 102, the connection is characterized.

In the method of providing a flash file content to a customer who makes an electronic commerce of the present invention, the customer performs an authentication procedure through an Internet website operated by the service provider;

After the authentication process is completed in the step, selecting the content of the flash file of the various contents desired by the customer;

The content of the flash file selected by the customer is encrypted by the encryption module 146 so as to be used only by the customer's flash player device and then downloaded through the Internet and stored in the memory card 42 or by the courier method. Characterized in that it is formed in steps that can be used to receive.

In addition, when the power of the flash player device 100 of the present invention is turned on (S101), the ROM 20 is booted (S102) and various kinds of stored in the ROM 20 including a flash player driving program and an authentication program for content protection. Programs are transferred to the RAM 50 (S103);

Checking whether the external memory card 42 is mounted in the external memory unit 40 (S104);

When the installation of the external memory card 42 in the external memory unit 40 is confirmed, whether a system area exists in the external memory card 42 while the content authentication program of the external memory card 42 is driven (S106). Checking (S107) and,

Comparing 108 the content file information recorded in the system area with the contents of the content file when there is a system area in step S107;

Reading a seal code recorded in a system area when the content file information of the corresponding system area and the content of the content file match (S110);

Checking whether the corresponding seal code matches the Factory Default Seal Code (S111),

If the corresponding seal code matches the factory default seal code, recording the flash player device ID of the customer as a seal code in the system area of the external memory card 42, and writing (S112). ,

If the seal code is not the factory default seal code in step S111, checking whether the seal code matches the ID of the flash player device 100 of the customer (S113);

If the seal code does not match the flash player device 100 ID in step S113, checking whether the seal code matches the Unlimited Seal Code (114),

When the seal code matches the factory default seal code in step 111, the seal code matches the ID of the flash player device 100 in step S113, and the seal code in step S114. If is matched with the Unlimited Seal code, authenticating with published type content (Published Type Contents) (S115),

If there is no system area in step S107, reading a file header of a content file (S116);

After reading the file header in the step (S116) and confirming whether the customer ID information in the header and the flash player device 100 ID that the customer is using (S117),

If it matches in the step (S117) and the authentication step (Individual Type Contents) (S118),

If it does not match in the step (S117) and confirming whether the content file is a general flash file header (S119),

In the case of the general flash file header in step S119, authenticating with free type contents (S120);

In step S121, a corresponding list of the authorized type content, the independent type content, or the free type content is displayed through the monitor 62 connected to the video output unit 60;

Selecting, by the customer, contents to be played back from the list displayed in step S120 (S122);

After the customer selects the content (S122) and distinguishes by each content type (S123), and in the case of the hybrid type content, driving the decryption program and decrypting it with a P2 key (124), and the independent type content Decrypting (125) the I2 key and storing the content in the RAM 50 (S126) for the free-type content without the decryption process;

Driving (127) the content decrypted in the RAM (50) for each content by a flash player program;

The video and audio signals generated by driving the flash player program are output to the monitor 62 and the speaker 72 through the video output unit 60 and the audio output unit 70 (S128). It features.

An embodiment of a flash player service method applying a content copyright protection method to a flash file will be described in detail with reference to the accompanying drawings.

1 is a description of the configuration of the flash player device 100, a power supply unit 10 for supplying power to the system, a ROM 20 that stores the flash player drive program and the authentication program for content protection, the entire system CPU 30 for controlling the external memory, the external memory card 40 is mounted and controls the content, the program in the ROM 20 and the contents of the external memory card mounted on the external memory unit 40 ( RAM 50 for reading and driving a program, a video output unit 60 connected to the monitor 62 and outputting a video signal, and an audio output connected to the speaker 72 and outputting an audio signal. The unit 70, a signal input unit 80 for inputting and controlling signals using a remote controller, a mouse, a keyboard, etc., which are signal input devices 82, and a peripheral device connecting unit 90 to which various peripheral devices 102 such as a printer are connected. Consist of All.

The power supply unit 10 may use an external power source using an adapter and a built-in battery using lithium ions, a lithium polymer, or the like for portability of the flash player device 100, and power the vehicle while driving. You can also apply a cigar jack type adapter that can be used.

The ROM 20 is an embedded software OS and includes a flash player program that implements flash file contents based on OS and WinCE, Linux, Palm, Symbian, Pocket PC, etc., and an external memory card 42. The content authentication program for copyright protection of the content stored in the user, and the user interface (User Interface) software is stored.

The external memory unit 40 includes a mounting unit for mounting an external memory card storing a flash file corresponding to a content and a control unit for controlling the corresponding memory card. The external memory card 42 includes a PCMCIA card and a CF. Card, SD Card, MMC Card, USB Memory Card, Memory Stick, CD, DVD, etc.

In addition, the video output unit 60 controls the video connection unit connected to the monitor 62 and the video signal driven by the flash player program to be converted into a signal of a form suitable for the monitor 62, and outputs it. Examples include TVs, LCDs, CRTs, and VCRs.

The audio output unit 70 controls the audio connection unit connected to the speaker 72 and the audio signal driven by the flash player program to be converted into a signal having a shape suitable for the speaker 72, and the speaker 72. Types include built-in speakers, external speakers, or earphones.

In addition, the video output unit 60 and the audio output unit 70 has a type of connecting the existing monitor 62 and the speaker 72 to the flash player device 100 for economical system configuration.

In addition, the monitor 62 may be configured in the form of a monitor built-in in which the flash player device 100 is embedded, or may be a CD player, a DVD player, a VCR, a set-top box. (Set Top Box), MP3 Player (MP3 Player), such as a built-in flash player device 100 can be configured to be connected to the monitor 62 and the speaker 72 to be used.

Alternatively, the LCD is integrated into the flash player device 100 as a monitor 62, the speaker 72 uses the built-in speaker, and the power supply unit 10 uses the built-in battery. Can also be used as

The signal input unit 80 receives and controls an input signal from the signal input device 82, and the signal input device 82 includes a button switch, a touch screen, and a key board. , Joystick, mouse, wireless remote control, etc. can be used.

The peripheral connection unit 90 is formed to transmit and receive data to and from the peripheral device 102 such as a PC, a printer, a PDA, and a GPS through a peripheral interface such as a serial, parallel, or USB port. It is.

In addition, the peripheral device 102 may be equipped with a portable flash player device 150, it is possible to charge the built-in battery of the mounted portable flash player device 150, LCD embedded in the mounted portable flash player device 150 There is a mounting and charging cradle 95 for outputting video and audio to an externally connected monitor 62 and a speaker 72 rather than a speaker.

2 is a general description of the entire system and services, so that the customer can access the Internet service provider's Internet website using a PC and select the desired content so that the user can use the flash player device 100 only. After being encrypted through the encryption module 146 and downloaded through the Internet, the memory module 42 may be stored in the memory card 42 or received and used by the delivery service.

Thereafter, after attaching the external memory card 42 to the external memory unit 40 of the flash player device 100, the content is authenticated through a content authentication program and the authenticated content is decrypted. By controlling the flash player apparatus 100 using the flash player, the flash player program is driven to connect a TV, which is a monitor 62, to output a video, and to output audio through the speaker 72.

The speaker 72 may also be output as a speaker embedded in a TV, which is one of the monitors 62, and may be connected to the flash player device 100 by capturing a screen output to the video output unit 60. It may be printed by transmitting to a printer, which is the peripheral device 102.

In addition, the database server 140 operated and managed by the service provider is a data database data storing a flash file, various information about a customer, an encryption module, and the like, and includes various information on the flash file by genre, content, and author. Content database 142 stored separately by publisher, price database 143 for which various prices for flash files are determined, IDs for customers, personal information, and customer flash player device IDs. A personal information database 144 storing information, a management database 145 storing various information about all related companies, payments, advertisers, etc., and an encryption module 146 for encrypting contents for copyright protection. Consists of.

In the content protection encryption method using the encryption module 146, content is classified into three types and encrypted. Each of the three types is defined as an independent type content, a published type content, and a free type content.

First, the encryption method for copyright protection of the independent type content is to include the customer personal information when the customer joins the service provider's Internet website when the customer accesses the service provider's Internet website and purchases the content. A cryptographic key (hereinafter referred to as Make_I_Key (ID)) generated by a specific function (hereinafter referred to as Make_I_Key (ID)) made by an Asymmetric Cryptographic System using a seed of a flash player device 100 as a seed. Is a content created by encrypting with a public key (hereinafter, referred to as I1 key).

When the content is encrypted with the I1 key for authentication of the content file, the header of the encrypted content file is recorded with the customer ID of the flash player device 100 as the customer ID, thereby storing the external memory card 42 storing the content. When mounted on the flash player device 100, the header of the content file is searched first to confirm that the corresponding content is the individual type content of the customer, and the identified content is implemented through the following decoding process.

The flash player device 100 owned by the customer has a built-in content authentication program including the Make_I_Key (ID) function algorithm, so that a private key is generated among the I keys generated based on the flash player device 100 ID of the customer. By using the following description (I2 key), the independent type content stored in the external memory card 42 is decrypted.

At this time, since the independent type content is decrypted only by the I2 key of the flash player device 100 of the customer, the content of the flash player device 100 as well as the other player of the flash player device 100 cannot be implemented. It is content created.

Next, the published type content is mainly displayed in a general bookstore in a form in which the content is embedded in the external memory card 42, and when the customer purchases it, the customer accesses the website of the content service provider and uses it himself. This is copyrighted content even in a manner in which the ID of the flash player device 100 is sold to an unspecified number of customers who do not know in advance, such as when purchasing for a gift.

In this case, since the ID of the flash player device 100 held by the customer is not known, an encryption method different from the independent type content should be applied. The encryption method for copyright protection of the hybrid type content to prevent copying of the content embedded in the external memory card 42 and to be operated only in the flash player device 100 used for the first time will be described below. Same as

First of all, the player does not use the ID of the flash player device 100 as a seed, but is made by introducing an asymmetric cryptography system using a separate random seed (hereinafter, referred to as RS). Encrypted content is created from the public key (hereinafter, designated as P1 Key) from the cipher key (hereinafter, designated as P Key) generated by a specific function (hereinafter, designated by Make_P_Key (RS)). The encrypted content can be decrypted only in the flash player device 100 having a private key (hereinafter, referred to as a P2 key), so that it is not operated on other devices such as a PC, but is initially installed in a flash player device ( 100 may also be driven.

In this case, the PC can be accessed to prevent illegal copying of the content file embedded in the external memory card 42 using the PC or other flash player device 100 other than the first mounted flash player device 100. And a system area separately accessible to the flash player device 100 only in the external memory card 42. The system area contains information such as file name, file length, content file information such as Cyclic Redundancy Check (CRC) code for error checking, and seal code. The content file information in the system area of the external memory card 42 is used to determine whether the content file is damaged or compatible with the contents of the content file stored in the external memory card 42.

When the Factory Default Seal Code is stored in the seal code in the system area of the initial external memory card 42, the ID of the flash player device 100 that is used for the first time when the external memory card 42 is used is external. The ID of the flash player device 100 coincides with the seal code of the external memory card 42 system area when the contents of the external memory card 42 are driven by being stored in the seal code of the memory card 42 system area. It is a content encryption method that protects copyright by making the ID type content authenticated and driven so that the ID cannot be used in other flash player apparatuses 100.

By doing this, when using an external memory card 42 with embedded type content as the other flash player device 100, the seal code in the system area of the external memory card 42 is not the factory default seal code. Since the ID of the flash player device 100 is recorded, when the content is authenticated, the seal code and the flash player device 100 are different from each other so that the content cannot be reproduced because the content cannot be authenticated.

In addition, in order to implement the hybrid type content that can be driven not only in the flash player device 100, but also in all the flash player devices 100, the initial external memory card ( 42) The Unlimited Seal Code is stored in the seal code of the system area instead of the factory default seal code, so that when the above-mentioned external memory card 42 is mounted and used, it is in the system area of the external memory card 42. When the seal code matches the unlimited seal code, unlike the factory default seal code, the ID of the flash player device 100 used for the first time is not stored in the seal code of the external memory card 42 system area. The first player to play Flash Player (100) by authenticating with legitimate published type content. It is a content encryption method that can be driven not only in the flash player device 100 but also in all.

The published type content having such an unlimited seal code can be operated on the flash player device 100 of all customers who have rented the content by a legal process, such as a rental video of a general video rental store or a rental book of a book rental store. As the content, it is a hybrid type content suitable for rental purposes rather than general sales.

The decryption process of the published type content may be performed on the external memory card 42 using a P2 key generated through a content authentication program including a Make_P_Key (RS) function algorithm built in the flash player device 100 held by the customer. Decrypt the stored typed content.

Finally, the free type content refers to free content that does not require copyright protection. In the Internet service method, when the content is selected, the free type content is downloaded through the Internet without encryption or embedded in an external memory card 42 and transmitted to the customer by courier.

4 is another embodiment of the present invention, the LCD of the monitor 62 is integrally embedded in the flash player device 100, the speaker 72 is a built-in speaker, the power supply 10 is a portable flash using a built-in battery The player device 150 is a portable flash player device 150 that can be used anywhere in the house without using a separate monitor 62 such as a TV, and can be used outdoors.

 In addition, when the portable flash player 150 is connected to the TV which is one of the monitors 62 and the charging unit 150 is mounted on a separate holder 96 having a charging function, the portable flash player 150 is viewed as a separate monitor 62 as a TV. You can use it immediately without having to connect the AV cable directly to the TV or connect the power adapter for charging each time.

And the configuration of the cradle 95 shown in Figure 5 is connected to the power supply unit 96 for supplying power to the portable flash player 150 using a power adapter (Adapter), the portable flash player 150 device to charge and data A main body connecting section 97 for transmitting and receiving, a video output section 98 for outputting video to the monitor 62, and an audio output section 97 for outputting audio to the speaker 72. In this case, an existing TV may be used as the monitor 62 and the speaker 72.

3 is a flowchart illustrating a process of processing a task using the above-described various content types. First, when the flash player apparatus 100 is turned on (S101), the ROM 20 is booted (S102). As mentioned in FIG. 1, various programs stored in the ROM 20 including the flash player driving program and the content authentication program are transferred to the RAM 50 (S103).

At this time, it is checked whether the external memory card 42 is mounted in the external memory unit 40 (S104), and if the external memory card is recognized, the following steps are performed. A message appears on the monitor 62 to insert the external memory card 42 (S105) and then used.

As described above, when the installation of the external memory card 42 is confirmed in the external memory unit 40, an authentication program for authenticating the contents of the external memory card 42 is driven (S106) and is separately added to the external memory card 42. The system asks whether the system area exists (S107).

In this case, if there is a system area in step S107, if there is a system area, a file name, a file length, and a cyclic redundancy check (CRC) code, which is content summary information recorded in the system area, is provided. (Code) The content and the contents file are matched or not (S108). If they do not match, it is determined as unauthenticated content (109).

If it matches in step S107, the seal code recorded in the system area is read (S110), and it is checked whether or not the seal code matches the factory default seal code (S111).

As described above, when the seal code matches the factory default seal code, the flash player device 100 ID of the customer is recorded as a seal code in the system area of the external memory card 42. S112), if the seal code is not the factory default seal code in step S111, it is checked whether the seal code matches the ID of the flash player device 100 of the customer (S113).

If the seal code does not match the flash player device 100 ID in step S113, it is checked 114 whether the seal code matches the Unlimited Seal Code.

When the seal code matches the factory default seal code in step 111, the seal code matches the ID of the flash player device 100 in step S113, and the seal code in step S114. If S is matched with the unlimited seal code, authentication is made with published type contents (S115), and if not, it is determined as content S109 that cannot be authenticated with the corresponding flash player device 100.

On the other hand, in the step (S107) of checking whether the system area exists in the external memory card 42 inserted into the external memory unit 40, if there is no system area, the header of the content file is read (S116). If there is a match between the customer ID information in the ID and the flash player device ID being used by the customer (S117), if the match is authenticated with the independent type content (S118), and if it does not match, the free type content It is checked whether or not the general flash file header of (Free Type Contents) is normal (S119).

In the case of the general flash file header, authentication is made with the free type content (S120). In the case of the non-generic flash file header, the content is determined as the content (S109) that cannot be authenticated with the corresponding flash player device 100.

Contents authenticated as one of the hybrid type content, the independent type content, or the free type content through the above process are displayed through the monitor 62 connected to the video output unit 60 (S121). .

When the customer selects the content (S122), the content is distinguished for each content type (S123), and in the case of the hybrid type content, the decryption program is driven and decrypted with a P2 key (124), and in the case of the independent type content, the I2 key The free type content is stored in the RAM 50 without the decoding process (S126) and driven by the flash player program (S127).

The video and audio signals generated by driving the flash player program in step S125 are output to the monitor 62 and the speaker 72 through the video output unit 60 and the audio output unit 70 (S128).

The flash player service method in which the content copyright protection method is applied to the flash file of the present invention having the configuration as described above, utilizes an existing TV as a monitor and a speaker in consideration of the convenient function and economy of the dedicated flash player device. This system can be used as a signal input device, so that children can use it safely and conveniently without being exposed to the harmful environment of the Internet. By using the card at any time, it is possible to increase the convenience of customers.

In addition, various content types that can accommodate both specific and unspecified customers can be purchased through the Internet or offline, as well as rental, thereby increasing the convenience and convenience of customers. Can be.

The content encryption and authentication program ensures that these various types of contents are implemented only on the flash player device owned by the customer, thereby protecting the copyrights by preventing illegal copying and distribution of the contents, thereby promoting the development of contents and the development of good quality contents. As a result, customers can also use a variety of good content.

In addition, the portable flash player device in which the flash player device and the LCD are integrally integrated has the advantage of realizing content anywhere in the home and outdoors.

 The flash player service method applying the content copyright protection method to the flash file of the present invention having the above advantages can be utilized for multimedia as well as language and game.

1 is an internal system configuration diagram of a flash player device according to the present invention,

2 is the content is encrypted according to the invention and purchased or purchased over the Internet

The service configuration diagram of the download process,

3 is a view illustrating a variety of contents that a customer uses a flash player device of the present invention.

       Is a flow chart of how to use authentication

4 is a cradle for a portable flash player device according to another embodiment of the present invention.

       It is a block diagram of how to use,

Figure 5 is a block diagram of a cradle of the present invention.

<Description of the symbols for the main parts of the drawings>

10: power supply unit 20: ROM

30: CPU 40: external memory unit

50: RAM 60: video output

70: audio output unit 80: signal input unit

90: peripheral device connection unit 100: flash player device

Claims (10)

delete In the method for providing a content formed in the flash file to the service provider to the customer doing e-commerce, The customer performing an authentication procedure through an internet website operated by a service provider; After the authentication process is completed in the step, the step of selecting the content of the video flash file of the various contents desired by the customer, The content of the flash file selected by the customer is encrypted with the independent type content or the hybrid type content through the encryption module 146 so as to be used only by the flash player device 100 of the customer, and then downloaded through the Internet. The service method of the flash player device to which the content copyright protection method is applied to the flash file, characterized in that it is formed in the step of being stored in the (42) or can receive and use the memory card 42 by the courier method. When the power of the flash player device 100 is turned on (S101), the ROM 20 in which the flash player driving program and the authentication program for content protection are stored is booted (S102) and the flash player driving program and the content protection Transferring to the RAM 50 for driving the authentication program (S103), Checking whether the external memory card 42 is mounted in the external memory unit 40 that controls the external memory card 42 (S104), and When the installation of the external memory card 42 in the external memory unit 40 is confirmed, whether a system area exists in the external memory card 42 while the content authentication program of the external memory card 42 is driven (S106). Checking (S107) and, Comparing 108 the content file information recorded in the system area with the contents of the content file when there is a system area in step S107; Reading a seal code recorded in a system area when the content file information of the corresponding system area and the content of the content file match (S110); Checking whether the corresponding seal code matches the Factory Default Seal Code (S111), If the corresponding seal code matches the factory default seal code, recording the flash player device ID of the customer as a seal code in the system area of the external memory card 42, and writing (S112). , If the seal code is not the factory default seal code in step S111, checking whether the seal code matches the ID of the flash player device 100 of the customer (S113); If the seal code does not match the flash player device 100 ID in step S113, checking whether the seal code matches the Unlimited Seal Code (114), When the seal code matches the factory default seal code in step 111, the seal code matches the ID of the flash player device 100 in step S113, and the seal code in step S114. If is matched with the Unlimited Seal code, authenticating with published type content (Published Type Contents) (S115), If there is no system area in step S107, reading a file header of a content file (S116); After reading the file header in the step (S116) and confirming whether the customer ID information in the header and the flash player device 100 ID that the customer is using (S117), If it matches in the step (S117) and the authentication step (Individual Type Contents) (S118), If it does not match in the step (S117) and confirming whether the content file is a general flash file header (S119), In the case of the general flash file header in step S119, authenticating with free type contents (S120); In step S121, a corresponding list of the authorized type content, the independent type content, or the free type content is displayed through the monitor 62 connected to the video output unit 60; Selecting, by the customer, content to be played back from the list displayed in step S120 (S121); After the customer selects the content (S122) and distinguishes by each content type (S123), and in the case of the hybrid type content, driving the decryption program and decrypting it with a P2 key (124), and the independent type content Decrypting (125) the I2 key and storing the content in the RAM 50 (S126) for the free-type content without the decryption process; Driving (127) the content decrypted in the RAM (50) for each content by a flash player program; The video and audio signals generated by driving the flash player program are output to the monitor 62 and the speaker 72 through the video output unit 60 and the audio output unit 70 (S128). A service method of a flash player device applying a content copyright protection method to a flash file. The header of the content file is encrypted with an I1 key which is a public key among I keys generated based on the ID of the flash player device 100 held by the customer. The flash player device 100 ID is recorded as the customer ID, and the ID of the header portion of the encrypted content file is compared with the flash player device 100 ID of the customer when decrypting the content in the flash player device 100 of the customer. To match, the content copyright protection method of the flash file, characterized in that the ID can not be used in other flash player device by decrypting with the I2 key, the secret key among the I key generated based on the ID of the player of the player 100 The service method of the flash player device applied. The method of claim 3, wherein the published type content is encrypted with a public key (hereinafter, referred to as P1 Key) among cryptographic keys (hereinafter, designated as P Key) generated by an asymmetric cryptographic system. Corresponding content file information and seal code information is placed in the system area of the external memory card 42 in which encrypted content is stored, so that the system area of the external memory card 42 when the external memory card 42 is first installed. If the content file information matches the contents of the contents in the external memory card 42, and the seal code is the Factory Default Seal Code, the flash player device 100 ID of the customer is stored as the seal code. Flash Players may only be used by first-time customers and the Seal Code is an Unlimited Seal Code. Uh device service method of flash player device in applying copyright-protected content in Flash files ways wherein you can be driving 100. delete delete delete delete The method of claim 3, wherein in step 128, the screen output to the video output unit 60 can be captured and transmitted through a printer among the peripheral devices 102 connected to the flash player device 100. A service method of a flash player device applying a content copyright protection method to a flash file.