TWI220354B - The system and method for protecting digital content - Google Patents

Abstract

The present invent provides a system and method for protecting digital content. The system includes an authorization library, a protection function and a decoding function. The authorization library is for storing a plural of authorization data. The protection function is for obtaining a decoding permit respect to a digital content by selecting an authorization data respect to the decoding permit from the authorization library based on a login permit. The decoding function is for decoding the digital content to generate a decoded digital content according to the decoding permit.

Description

1220354 V. Description of the invention (1) The technical field to which the invention belongs The present invention is in the digital domain. The prior art digital content means that in addition to the value industries, it is also a national industry such as the United Kingdom, Japan, and Japan. But the book and a computer are only a little bit deeper. Many hardware and two types of protection are installed or released. Unauthorized, mostly by means of data storage. Regarding a type of digital content that must be obtained in the industry, the promotion of traditional production is to improve our country, Korea, and so on. Regardless of the digital content games, these years, the digital content has been burned to prevent piracy. In the past, it was required to use the mutual modification and storage through the Internet to avoid the protection of the content. A decryption license is required to develop the knowledge economy and improve the knowledge of the industry. The overall industry competition is based on the overall state of affairs. Popularization of equipment Piracy issues. In the protection method, the most common users input a set of digital content to protect the system for themselves, and only later can they be transformed with the digital economic content. The strength of the foundational family will always be a movie. Multimedia and the Internet So, digitally largely software protects serial numbers or account content. The hard disk media practical burning device refers to the index that has been encrypted and decrypted in advance, which means a high additional price, and the world ’s poles are promoting the important content files, electronic broadband content industry is divided into software and methods At the same time, the structure of the body is protected or the material is copied illegally.

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Because ", / [Zeda itself or the storage number :: f software protection mechanisms are added to the digital content to be used-some ^ inner valley of the disc media. However, those who are interested in it can only bypass the protection mechanism by defeating or avoiding these additional protection mechanisms. Therefore, for the digital & $ 'ft ΛΑ να ^ ^ industry players, there is a need for Method of skipping protection mechanism. SUMMARY OF THE INVENTION The main object of the present invention is to provide a system and method for protecting digital content that cannot skip or evade protection mechanisms. Based on the above objectives, the present invention discloses a system and method for protecting digital content. This protection system enables pre-encrypted digital content to be decrypted after obtaining the release permission, and after decryption, it is installed or played with an application corresponding to the digital content. The digital content protection system disclosed in the present invention includes at least an authentication database, a shy mechanism, a reconciliation mechanism, and a mechanism. The certification database is used to store multiple pieces of $ tolerance data. The security mechanism is used to obtain the decryption permission corresponding to the digital content from the authentication data in the authentication database by the login permission after obtaining the login permission. The decryption mechanism decrypts the pre-encrypted digital content according to the 5 decryption permission obtained by the protection mechanism, and obtains the decrypted digital content.

Although the digital data disclosed by the present invention can still be used to privately guarantee the security and compliance of the system, the user can illegally circulate digital content under this system architecture. However, in the system's authorized decryption, f especially wrong: the system has been encrypted in advance. 'If it has not been obtained, it will be played in this system; ::::; the digital content is still unable to install or protect the digital content. The present invention is hereby used to achieve the advantages of the present invention. Pan Jizhan # The drawing has been further improved: God can hunt the following detailed description of the invention and the method of implementation <First Embodiment> = fsee Figure 1 FIG. 1 is a schematic diagram of digital content protection in the first embodiment of the present invention. As shown in Fig. 1, the protection of the first embodiment of the present invention is constituted by a feeding H-terminal computer 1G and a client terminal 12. Only under this shelf is 'User 1 4 Series interacts with server-side computer 1 0 and client-side power 12 respectively through the network', so that the server-side computer i 0 and client-side power 1 12 are generated. Interaction 'finally completes the user's request for viewing the digital content in the user terminal 12. The following will further explain the components included in the server terminal 10 and the client computer 12, and these components

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How to interact to achieve the purpose of the invention. Such as Section 18, the system is used to respond to individual encryption. The access mechanism (for example, as shown in Figure 1), the server computer 10 includes an authentication database user database 28 and a login mechanism 24. Among them, the authentication database stores a plurality of authentication data And these authentication data are separate digital contents. In other words, each digital content has = method, and it needs to store its decryption party with different authentication data. The user database 28 is used to store multiple users. ^ 料. 24 is to receive the login of the user through the login form 26; 4 login; account / password), and according to the user database 28, verify that the login information of the user 14 is legal, 2. In the use case, the login mechanism 24 issues a login permission, and the working period (sesi ο η) of the μ-Ya login permission g port. ~ As shown in Figure 1, included in the client computer 12. ^ Decryption mechanism 22, automatic execution mechanism 30, and digital content system 20 mechanism 2 0 is used to obtain login permission rent from user 14 ^ 'guaranteed to store 2 of the authentication database from the login database by login permission. 2 0 Corresponds to the decryption permission of the digital content 16, which is obtained in this solution: The decryption mechanism 22 that contains the digital content that the user 14 wants to install or execute, and the decryption mechanism 22 responds to a user ’s viewing in accordance with the decryption permission. Digital content 6 requirements, and using the protection mechanism 20 and decryption mechanism 22 to obtain the decrypted digital content,

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V. Description of the invention (5) Put the decrypted digital content 16. The digital content 6 is a pre-encrypted digital content 16 before being decrypted by the decryption mechanism 22, and it is a decrypted digital content 16 after being decrypted by the decryption mechanism 22. Next, the operation of the digital content protection system according to the first embodiment will be described below. Under the system architecture of the first embodiment of the present invention, when the user 丨 passes through the optical disc storage medium (not shown) of the client computer 12 to obtain the pre-encrypted digital content 16, the user 丨 4 needs The digital content 6 is first decrypted by the digital content protection system disclosed in the present invention, and the user 14 can install or play the digital content 16 only after decryption is performed in the digital. In addition, users 14 can also obtain pre-encrypted digital content 16 from the server computer 10 through the network under the system disclosed in the present invention. However, the user does not need to: Obtain the digital content of $ 16 in a digital way. The pre-encrypted digital content is performed on the client computer 1 2. 111 16:00, this protection mechanism will only open the mechanism 3 0 can also be through the server user system 2 2 and the user's digital content computer 1 2 install the system of the present invention and automatic execution storage media The 16-bit content will also require 20, the decryption machine or the 20 installed on the light invention to expose the decryption machine to operate. And the system stored in advance on the network from the server computer 10 to the brain 1 2 first through the execution mechanism will first require the client 22 and the automatic execution mechanism 30, the protection mechanism 20, and the decryption mechanism to contain the digital content of the 16 discs Download from the server computer. When loaded, the network of the present invention acquires and installs a protection mechanism 30. In addition, if you have installed

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Running mechanism 30, the system of the present invention ′ The system of the present invention directly opens the protection mechanism 20, the decryption mechanism 22, and the automatic execution system, and then skips the steps requiring the user to install before starting operation. Two τ 'The operation mode of the system of the present invention, the user 14 first = ί = man-machine ㈣ 24 has a person table $ 26 fill in the legal login 1 1 ^ 1 ^ entry mechanism 24 through the user database 2 to identify the user Login: 、、、 二 /%, login mechanism 2 4 will generate a login permission. It is hereby stated that the operation mode of the system can also require the user h to download and install the protection mechanism 2 0, the decryption mechanism 2 2 and the automatic execution mechanism 3 0 after obtaining this login license H :. 〇, X X &lt; -η 1 ^, 〇, 疋, and 入, and finally can be used as the basis for subsequent acquisition of certification data from the certification database 18. The establishment of the above-mentioned user database 28 is based on the business model. That is to say, after the publisher charges the user 14 a certain fee in advance, the user 14 according to his business model will use the system or other billing methods to obtain the corresponding login information. Or, the user 14 legally obtains the digital content 16 and simultaneously obtains the login data without limitation of time limitation but restricting the single user 14 from playing or operating the digital content 16 at the same time. All in all, there is no certain basis for the establishment of the user database 28, and only a simple example will be given here. The following continues to explain how the components in the client computer 12 interact with each other to obtain authentication data from the authentication database 丨 0 of the server computer 丨 〇. When user 30 clicks a specific number through a user interface (not shown)

Page 11 1220354 V. Description of the invention (7) When the content 16 is to be installed, executed, or played, all necessary execution steps of the invention are automatically implemented by the automatic execution mechanism and the user. There is no need to consider how to operate the system disclosed by the present invention. In addition, the user can also start the operation of the system by directly clicking the execution file of the digital content 16 under the Windows system, but the same will automatically complete all necessary executions of the system of the present invention through the automatic execution mechanism 30. step. When the automatic execution mechanism 30 receives a request to play, install or execute a specific digital content 16, the automatic execution mechanism 30 will require the protection mechanism 20 to obtain a corresponding response from the authentication database with the previously obtained login permission. Decryption permission for number 1 content 16. Next, when the automatic execution mechanism 30 determines that the protection mechanism 20 has successfully obtained the decryption permission, it will request the decryption mechanism 22 to perform the decryption action of this digital content according to the decryption method included in the decryption permission. After the decryption mechanism 22 completes decryption, the client computer 2 will obtain a decrypted digital content. Finally, the automatic execution mechanism 30 will play or execute the digital content 16 through a playback or execution application as defined by Windows16. However, in order to prevent the user from illegally burning or transmitting the decrypted digital content 丨 6, the decrypted digital content will only exist in the memory of the client computer 12 and there is no way to restore it Into a solid slot case. In summary, under the digital content protection system and method disclosed by the present invention, the user 14 cannot obtain the physical file of the decrypted digital content '16 /, and thus achieves the purpose of protecting the digital content of the present invention. Moreover, under the framework of this system, users 1 and 4 can only copy it privately or through the Internet.

1220354 V. Description of the invention (8) ^ &quot; &quot; 一 &quot; Method to circulate the pre-encrypted digital content 16, but if the user 14 wants to sleep or play ^ this pre-encrypted digital content 16 is still Need to obtain a legal license 'This invention is precisely to achieve the purpose of protecting digital content. Example> <Second Embodiment Please refer to FIG. 2. FIG. 2 is a schematic diagram of a digital content protection system according to a second embodiment of the present invention. As shown in FIG. 2, the digital content protection system according to the second embodiment of the present invention is a generally known decentralized architecture, and an intermediary computer 32 having a protection mechanism 20 is added under this architecture. Therefore, under this architecture, multiple client computers 12 and 36 can be allowed to no longer need to install a protection mechanism 2 0 ′ to share the load of partially executing the system. Under this framework, the client computers 12 and 36 can also be controlled by the intermediary computer 3 2. As with the method of the first embodiment, when the automatic execution mechanism 3 8 sent to the client computer 12 is played or executed, the automatic execution mechanisms 30 and 38 respectively protect the mechanism 20 by the user. 14 and 34 respectively obtained corresponding certifications in the certification database. Next, the automatic execution mechanisms 30 and 20 successfully obtained the decryption mechanisms 22 and 40 corresponding to the client computer's request for decryption of this digital content 16 and 42 respectively according to the formula. The digital mainland requires the decryption permission to be fetched in advance from the digital 3, 12, and 36 respectively. At 3 4 respectively, the client terminal 16 and the intermediary Deng Rong 16 and the deciphering license contained in the decryption license are determined by touching the computer 3 6 4 2 to request the brain 3 2 security permission to 4 2 When the decryption protection mechanism is available, the decryption system will be 2 2 and 4 0

Page 13 1220354 V. Description of the invention (9) After the decryption is completed, the user *. ^ Digital content. In the end, computers 12 and 36 will get a decrypted Windows built-in podcast execution mechanism 30 and 38 respectively by 16 and 42. Play or execute applications to play or execute digital content. The features and spirit of the present invention will be described by the detailed description of the preferred embodiments above, rather than limiting the scope of the present invention with the hope that the embodiments will be described more clearly. The better specifics disclosed by 'L are expected to cover various changes and equivalences. The purpose is to lie within the scope of the patent. Wonder Woman Volleyball Team

Page 14 1220354 Brief description of the drawings Brief description of the drawings Figure 1 is a diagram of the first embodiment of the present invention. Fig. 2 is a diagram of a second embodiment of the present invention. Explanation of graphical symbols 1 0 Server-side computer 1 4, 3 4 Users 1 8 Authentication database 2 2, 4 0 Decryption mechanism 26 Login form 3 0 Automatic execution mechanism Digital content protection system Schematic of digital content protection system Diagram 1 2 Client computer 1 6, 4 2 Digital content 2 0 Protection mechanism 2 4 Login mechanism 2 8 User database 3 2 Intermediate computer

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Claims (1)

1220354 6. Scope of patent application: A digital content protection system. The protection system enables a pre-encrypted digital content to be decrypted after obtaining a decryption permission. The system includes at least: a certification database, the certification database It is used to store a plurality of authentication data; a protection mechanism is used to obtain the corresponding digital content from the authentication data in the authentication database through the login permission after obtaining a login permission. The decryption permission; and a decryption mechanism, which decrypts the pre-encrypted digital content according to the decryption permission obtained by the protection mechanism to obtain a decrypted digital content. 2. The protection system described in item 1 of the scope of patent application, wherein the digital content is selected from the group consisting of an audiovisual multimedia file, an e-book, and a computer game 3. The protection system described in item 1 of the scope of patent application , Wherein the protection system further has: a login mechanism, the login mechanism receives a user's login data through a login form, and verifies the user's Page 16 1220354 VI. Scope of patent application Login information is issued and the login permission is issued. 4. The protection system described in item 1 of the scope of patent application, wherein the protection system further has: an automatic execution mechanism, which is used to respond to a user's request for viewing the digital content and automatically borrow With the protection mechanism and the decryption mechanism, the decrypted digital content is obtained, and the decrypted digital content is played. 5. The protection system described in item 4 of the scope of patent application, wherein the protection system further includes: a client computer, the client computer includes at least the protection mechanism, the decryption mechanism, the automatic execution mechanism and the digital content . 6. The protection system as described in item 4 of the scope of patent application, wherein the protection system further comprises: a plurality of client computers, the client computers including at least the decryption mechanism, the automatic execution mechanism and the digital content; and An intermediary computer. The intermediary computer includes at least the protection mechanism. 7. The protection system described in item 3 of the scope of patent application, wherein the protection is Page 17 1220354 6. Scope of patent application The system further has: a server-side computer, the server-side computer includes at least the authentication database, the login mechanism and the user database. 8. A method for protecting digital content. The protection method enables a pre-encrypted digital content to be decrypted after obtaining a decryption permission. The method includes at least the following steps: Provide a certification database, which is used for After storing a plurality of authentication materials, after obtaining a login permission, the decryption permission corresponding to the digital content is obtained from the authentication materials in the authentication database by the login permission; and the pre-decryption is performed according to the decryption permission Encrypted digital content to obtain a decrypted digital content. 9. The protection method described in item 8 of the scope of patent application, wherein the digital content is selected from the group consisting of an audiovisual multimedia file, an e-book, and a computer game, and the protection described in item 8 of the scope of patent application. Method where the login Page 18 1220354 VI. The scope of patent application permission is obtained through a login mechanism. The login mechanism receives a user's login information through a login form and verifies the user's login information based on a user database. Issue the login permission. 11 1. The protection method as described in item 8 of the scope of patent application, wherein the decrypted digital content is automatically played through an automatic execution mechanism. Page 19