CN101091183A - Method and apparatus for digital content management - Google Patents

Abstract

The present invention discloses a method for using digital content. According to this method, a user terminal acquires an authorization file at least including a predetermined processing right from the authorization terminal, the predetermined processing right allowing the user terminal to process the digital content in the predetermined manner, e.g. edit the digital content. When the processing right requested by the user is included in the authorization file that the user terminal acquires, the user can perform the predetermined processing on the digital content. This invention also discloses apparatus for using the digital content. The method and apparatus of the present invention can bring better convenience to the user and protect profits of the content provider as well.

Description

Method and device for digital content management

technical field

The present invention generally relates to DRM (Digital Right Management), and in particular to a method and device for using digital content.

Background technique

With the rapid development of network technology and digital technology, the use of source digital content has become easier and easier. From the perspective of content providers, because they want to protect their own content copyright, if the source digital content is allowed to be used without restriction, it will cause great damage to the interests of content providers. On the other hand, from the perspective of content consumers, they always want to use any content without restriction.

In order to take into account the interests of both the content provider and the content consumer, the concept of Authorized Domain AD (Authorized Domain) is proposed to ensure that the content can only be used under the authorization of the content provider. The basic idea of Authorized Domains is to provide a controlled network environment in which content can be used relatively freely as long as the boundaries of Authorized Domains are not exceeded. Typically, AD consists of a group of interconnected devices and users that belong to a family. In an authorized domain, a user is usually represented by a device associated with the user (ie, a user device). In an Authorized Domain, content can be freely moved and/or copied between individual user devices, but content is restricted from being moved outside of the AD. Typically, standard distribution channels (eg, video broadcast, local area network, Internet, telephone line, and satellite download, etc.) can be used to deliver content from the content provider into the Authorized Domain. Alternatively, content can be entered into authorized domains via traditional mail forms.

At present, there are many technologies for realizing the authorized domain system. For example, the same applicant as the present application filed the international patent application WO03/098931 on November 27, 2003, disclosing a method and system for constructing an authorized domain. Here, The entire content of this patent application document is incorporated as a reference document.

In the prior art, the content provider forbids the content consumer to change the content in any form. Users can only play, copy and transmit digital content according to the content provider's rules. However, for a content consumer, in order to obtain the same content for different user devices (such as a personal computer and a mobile phone), he may need to obtain digital content in different versions/formats from a content provider. This causes great inconvenience to the content consumer.

Contents of the invention

One of the objects of the present invention is to provide a method and device for using digital content, which allows the user terminal to perform the required processing on the digital content under the authorization of the content provider, and at the same time track the corresponding processing. user terminal.

According to an embodiment of the present invention, a method for authorizing the use of a digital content is provided. Firstly, a request is received from a user terminal, the request requires authorization of the user terminal with a processing right enabling the user terminal to process the digital content in a predetermined manner. Then, according to the request, an authorization file containing the processing right is generated and sent to the user terminal, so that the user terminal can process the digital content in the predetermined manner.

Preferably, before generating the authorization file, it is verified whether the request comes from a legal client. When it is determined that the request is from a legal client, the authorization file is generated.

Preferably, after the authorization file is generated, the authorization file is sent to the client.

More preferably, after the authorization file is generated, the authorization file and digital content are sent to the client.

Preferably, the request further includes identification information of a client. The identification information of the client includes one of the following identification information: user identification information, device identification information, and authorized domain identification information.

Preferably, the predetermined manner includes at least one of the following processing manners: transcoding the digital content; editing the digital content; and extracting a part of the digital content.

According to another embodiment of the present invention, there is provided a method for requiring authorization of a client to use a digital content. First, a request is issued, which requests authorization of the client with a processing right enabling the client to process the digital content in a predetermined manner. Then, receiving an authorization file containing the processing right from the authorizing end, so that the user end can process the digital content in the predetermined manner.

According to another embodiment of the present invention, there is provided a method for processing a digital content at a client end, comprising the steps of: (a) receiving a request for processing the digital content in a predetermined manner; (b) verifying whether the client is authorized to process the digital content in the predetermined manner; and (c) when the client is authorized to process the digital content in the predetermined manner, process the digital content in the predetermined manner to obtain a Processed digital content.

Preferably, the above step (b) includes: (i) obtaining an authorization file corresponding to the digital content; and (ii) checking whether the authorization file contains a processing right that authorizes the user terminal to process the digital content.

Preferably, the method further includes the step of associating relevant processing information with said processed digital content. The processing information includes at least one of the following information: the authorization file information, processing mode, processing time, status of the digital content before processing, and user terminal identification information.

According to another embodiment of the present invention, a method for operating a processed digital content at a client is provided. First, a request is received for manipulating the processed digital content. Then, verifying whether the processed digital content was obtained by processing in an authorized manner; and finally, obtaining the processed digital content for the user when the processed digital content was obtained by processing in an authorized manner terminal operation.

According to another embodiment of the present invention, a device for authorizing the use of a digital content is provided, including: an authorization request receiving device, configured to receive a request from a user terminal, the request requires authorization of a processing right of the user terminal, the processing right enabling the client to process the digital content in a predetermined manner; and generating means for, upon the request, generating an authorization document containing the processing right to transmit to the client, enabling the The UE can process the digital content in the predetermined manner.

Preferably, the device also includes a sending device, configured to send the authorization file to the user terminal. The sending device is also used to send the digital content to the client.

The device also includes a legitimacy verification device for verifying whether the request comes from a legal client.

According to another embodiment of the present invention, there is provided an apparatus for requesting authorization of a user terminal to use a digital content, comprising: an issuing means for issuing a request, the request requires authorization of the user end with a processing right, the processing right makes the The user terminal can process the digital content in a predetermined way; and an authorization receiving device receives an authorization document containing the processing right from the authorizing terminal, so that the user terminal can process the digital content in the predetermined way.

According to another embodiment of the present invention, there is provided a device for processing a digital content at a client end, comprising: a processing request receiving device for receiving a request, the request requires processing the digital content in a predetermined manner; an authorization verification device for verifying whether the client is authorized to process the digital content in the predetermined manner; and a processing device for, when the client is authorized to process the digital content in the predetermined manner, according to the The digital content is processed in a predetermined manner to obtain a processed digital content.

Preferably, the authorization verification means includes: an obtaining means for obtaining an authorization file corresponding to the digital content; a checking means for checking whether the authorization file contains a processing right, and the processing right authorizes the user The terminal processes the digital content in the predetermined manner.

Preferably, the device further includes an associating means for associating the relevant processing information with the processed digital content.

According to another embodiment of the present invention, there is provided a device for operating a processed digital content at a user end, including: an operation request receiving device for receiving a request for operating the digital content; a processing verification means for verifying whether the processed digital content is obtained by processing in an authorized manner; and an operating device for obtaining the processed digital content when the processed digital content is obtained by processing in an authorized manner digital content for the client to operate on.

By adopting the present invention, the content consumer can not only copy the digital content obtained from the content provider, but also directly perform more forms of processing on the obtained content to suit different actual needs. For example, transcoding data content to be suitable for mobile devices; extracting required part of content from source digital content; and editing digital content, etc. Thereby, greater convenience for the user is provided.

In addition, in the present invention, the processing of the digital content should be authorized by the content provider, and it can be known from the processed digital content who has processed the source digital content accordingly, that is, the user who processed the content can be tracked . In this way, the interests of content providers can be effectively protected.

The above and other objects, features and advantages of the present invention will become clearer and a comprehensive understanding of the present invention will be obtained through the following description and claims of the present invention with reference to the accompanying drawings.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing, wherein:

Figure 1 is a simplified schematic diagram showing a system for digital content management according to the present invention;

2 is a block diagram showing a detailed structure of a system for digital content management according to a preferred embodiment of the present invention;

Fig. 3 is a block diagram showing the structure of an authorization verification device according to a preferred embodiment of the present invention;

FIG. 4 is a flowchart describing processing performed in a content providing server according to a preferred embodiment of the present invention;

FIG. 5 is a flow chart describing the processing performed in an apparatus for obtaining an authorization file of a user equipment according to a preferred embodiment of the present invention;

6 is a flow chart describing the processing performed in the content processing device of the user equipment according to a preferred embodiment of the present invention; and

FIG. 7 is a flowchart describing operation processing performed in another user equipment according to a preferred embodiment of the present invention.

Detailed ways

Now, referring to FIG. 1, a basic configuration for a digital content management system according to an embodiment of the present invention will be explained.

Fig. 1 shows a simplified schematic diagram of a basic configuration for digital content management according to an embodiment of the present invention. In FIG. 1 , an authorized domain 10 includes at least a user equipment 11 and a user equipment 12 . In this embodiment, the user equipment 11 is a desktop computer, and the user equipment 12 is a mobile phone. The user equipment 11 in the authorized domain 10 is connected to the content providing server 13 via LAN, Internet, telephone line, mobile communication, or satellite download line, and obtains the required digital content from the content providing server 13 . At the same time, the user equipment 12 can be connected with the user equipment 11 through a corresponding communication method according to the specific equipment type, so as to obtain the desired digital content processed by the user equipment 11 from the user equipment 11 . Those skilled in the art should understand that the present invention is not limited thereto. For example, user equipment 11 and 12 may also be electronic equipment such as notebook computers, personal digital assistants (PDAs), and MP3 players. In addition, the user equipment 11 can also obtain the required digital content from the content providing server 13 through traditional transmission methods such as mail and pre-stored media. Typically, digital content includes music, songs, movies, television programs, pictures, text, interactive services, and the like.

In the authorized domain 10 , digital content can freely flow between the user equipment 11 and 12 according to set rules, but the content is restricted and cannot flow out of the authorized domain 10 . Usually, the above-mentioned functions of Authorized Domains are controlled by a so-called AD-DRM (Authorized Domain-Digital Rights Management) system. The AD-DRM system is used to realize content delivery between content providers and Authorized Domains.

The specific structure of the AD-DRM system is well known to those skilled in the art, so it will not be described too much here. . In the present invention, the user equipment 11 in the authorized domain 10 can obtain a predetermined processing right from the content providing server 13 as required, so that the user terminal can perform the required predetermined processing on the digital content. The predetermined processing refers to a change in the integrity of the digital content, for example, transcoding the digital content, editing the digital content, and so on. This predetermined processing right is one of the usage rights to which the user is authorized. Another kind of use right that users are authorized to use is the right to operate. The operation right refers to the use of the digital content, such as playing, copying, etc., under the premise of maintaining the integrity of the digital content. For a detailed description of the AD|-DRM system, see Frank Kamperman, Paul Koster, Geert-Jan, Schrijen, Bas van den Heuvel, Digital Rights Management for Connected Stars and Connected Home. In addition, please also refer to the international application WO03098931 filed on November 27, 2003 by the same applicant as the present application.

Several terms related to the present invention in the authorized domain are explained below.

1. Content packaging

To prevent unauthorized access to the content during storage and transmission, the content is encapsulated in a secure content container. As shown in Table 1, the content shell includes content identification information (Content ID) and content. The purpose of the content shell is to provide confidentiality by encrypting the content. At the same time, the identification information of the content associates the content with content rights, user rights, and the like.

Table 1

content shell

Identification information of the content content

2. Content Rights

As shown in Table 2, content rights (Content Right) usually include content identification information, user terminal identification information, content provider identification information, content keys, user rights information, and digital signatures.

The content identification information generally refers to the identification information (Content ID) of the digital content, etc., which can be used to determine the specific digital content used. The identification information of the user end generally refers to the identification information of the user end that has the right and has issued a permission request, and can be used to determine a specific user end. It may include user identification information, device identification information, or authorized domain identification information. The content key refers to the key (ContentKeys) for decrypting the encrypted digital content. In a common DRM system, a corresponding key for decrypting the file will be generated during the encryption process of the distributed and sold digital content. User rights information (UserRight Authority) is the use rights determined according to the agreement or contract between the user terminal and the content provider. In the present invention, the above usage rights include operation rights and processing rights.

Table 2

content rights

Identification information for the content Identification information of the client Content provider identification information content key User Rights Information signature algorithm

signature value

3. User rights

User rights include user identification information, content identification information (Content ID), content provider identification information (ContentProvider ID), rights description information (rightexpression) and digital signature (signature). A user right is a credential indicating whether a user is allowed to access content using content rights. The user right, the content, and the content right are associated by using the identification information of the content.

table 3

user rights

Identification information for the content Identification information of the client Identification information of the content provider Rights description information signature algorithm signature value

Now, referring to FIG. 2, the system of digital content management according to the present invention will be described in detail. FIG. 2 is a block diagram showing a detailed structure of a digital content management system according to a preferred embodiment of the present invention.

Referring to FIG. 2 , the content providing server 13 (the content providing end, that is, the authorizing end) includes an authorization request receiving device 101 and a generating device 103 .

Authorization request receiving means 101 receives a request message from user equipment 11 (client). The request information includes at least identification information of the user terminal, identification information of the content, and a predetermined processing right requested by the user terminal. The request information can be transmitted from the user equipment 11 to the authorization request receiving device 101 of the content providing server 13 via the Internet, a local area network, a telephone line, a mobile communication network, etc. through common communication methods.

If the digital content has been stored in the user equipment 11, and the user only wants to obtain a predetermined processing right to the digital content, the user equipment 11 can only request the content providing server 13 to grant it the predetermined processing right, so as to process the content stored in the digital content accordingly. The digital content of the user equipment 11.

Alternatively, if the user wishes to obtain a predetermined processing right for the digital content while obtaining the digital content, the user device 11 may request the content providing server 13 to provide the digital content and at the same time authorize it to perform the required predetermined processing right on the digital content. Booking processing rights.

The request may be a request to transcode the digital content, for example, convert a high-definition format digital content into a low-definition format digital content, so as to be suitable for the needs of the user equipment 12 as a mobile phone. The request may also be to extract a part of the digital content from the source digital content, for example, to extract a segment from a piece of music as a mobile phone ringtone. The request may also be to edit the source digital content, for example to edit personal content based on the source digital content. It should be understood that the request is not limited to the above processing, and may be any processing required by the user.

The generating unit 103 generates an authorization file containing predetermined processing rights according to the request information received by the authorization receiving unit 103 , and sends it to the user equipment 11 . The predetermined processing right may enable the user equipment 11 to perform predetermined processing on the digital content. In this embodiment, the authorization file may, as shown in Table 3, include identification information of the content, identification information of the client, identification information of the content provider, processing rights, and the like. In this embodiment, the generating means 103 generates an authorization file using a generating method known to those skilled in the art. Meanwhile, in the present invention, the identification information of the user end may be user identification information, device identification information or authorized domain identification information.

After the generated authorization file is encrypted and signed by a commonly used encryption tool, it is stored in a storage device (not shown) of the content providing server 13 and is ready to be sent.

In addition, preferably, the content providing server 13 according to this embodiment may further include a legality verification device 102 . After the authorization request receiving means 101 receives the processing request information from the user equipment 11, the legitimacy verification means 102 verifies the validity of the identification information of the user end, that is, verifies whether the user end is a legitimate user end. After confirming that the identification information of the user terminal is valid, the generating means 103 generates an authorization file according to the request information received by the authorization request receiving means 101 . This prevents access by unauthorized users.

Preferably, the content providing server 13 according to this embodiment may further include a sending device 104 . Preferably, after encrypting and signing the generated authorization file using a common encryption method, the sending means 104 sends the encrypted generated authorization file to the user equipment 11, wherein the authorization file includes at least identification information of the content, identification information of the user terminal, authorization terminal identification information and predetermined processing rights, etc. In the present invention, the sending means 104 can send the generated authorization file to the user equipment 11 by means of communication well known to those skilled in the art.

In the case that the user terminal requests to send the required digital content and at the same time requests to be granted a predetermined processing right, the sending means 104 sends the digital content and the authorization file including the corresponding predetermined processing right to the user equipment 11 together.

The user equipment 11 of the user terminal according to this embodiment may be a personal computer. It includes obtaining an authorization file device 110 and a content processing device 111, which are used to obtain an authorization file including a predetermined processing right from the content providing server 13, and process information from the content providing server or stored in the user equipment 11 according to the obtained processing right. The corresponding predetermined processing of the digital content.

According to this embodiment, the device 110 for obtaining an authorization file includes a sending device 1101 and an authorization file receiving device 1102 .

According to the needs of the user equipment, the sending means 1101 sends a request message requesting to obtain a processing right to the content providing server 13, so as to obtain a predetermined processing right so as to perform corresponding predetermined processing on the digital content stored in the user equipment 11.

Alternatively, the sending means 1101 may request the content providing server 13 to send request information requesting to obtain the required digital content and to perform corresponding predetermined processing on the digital content.

The authorization file receiving means 1102 receives an authorization file generated by the content providing server 13 . The authorization file includes a predetermined processing right, which enables the user equipment 11 to perform predetermined processing on the corresponding digital content. The received authorization file may be stored in a storage device of the user equipment 11 (not shown).

According to this embodiment, the content processing unit 111 of the user equipment 11 includes a processing request receiving unit 1110 , an authorization verification unit 1111 , and a processing unit 1112 .

The processing request receiving means 1110 receives a processing request from a user, such as a request to edit digital content, extract a part of digital content from digital content, and so on. The request may come from another user device, such as user device 12 . The request may also originate directly from a user input. The authorization verification unit 111 verifies whether the user equipment 11 is authorized to process the digital content requested by the user according to the authorization file received by the authorization file receiving unit 1102 . The authorization file may be an authorization file obtained by the authorization file receiving module 1102 and stored in the storage device of the user equipment 11 in advance. Of course, the authorization file may also be obtained in real time by the authorization file obtaining device 110 according to the user's request. If the authorization file contains the processing right requested by the user, the processing device 1112 first uses the content key in the content right to decrypt the digital content, and then performs corresponding processing on the decrypted digital content to obtain a processed digital content. The processed digital content may be stored in a storage device (not shown) of the user equipment 11 after being encrypted and signed.

In this embodiment, preferably, the content processing device 111 may further include an associating device 1113 . The associating means 1113 attaches relevant processing information to the processed digital content. Relevant processing information includes authorization file information before processing, processing method, processing time, status of digital content before processing, identification information of the user terminal, and the like. The authorization file information before processing is, for example, the content/format of the authorization file and the like. The associated files are stored in a storage device (not shown) of the user device 11 and can be sent to other user devices along with the processed digital content.

Alternatively, the means for obtaining an authorization file 110 and the means for processing content 111 in the user equipment 11 may also be implemented as a single device.

In this embodiment, the user equipment 12 may include an operation requesting means 121 , a processing verification means 122 and an operating means 123 . The operation request receiving means 121 receives an operation request from the user, and the operation request requires to operate the processed digital content in the user equipment 11 . The processing verifying means 122 verifies whether the processed digital content is obtained through processing in a manner authorized by the content providing server 13 according to the associated information from the associating means 1113 . Of course, the processing verification device 122 may also directly contact the content providing server 13 to verify whether the processed digital content is obtained through processing in a manner authorized by the content providing server 13 . When the processed digital content is obtained in a manner authorized by the content providing server 13, the operating device 123 obtains the processed digital content from the user equipment 11, and decodes the processed content for the user terminal to operate .

Now, referring to FIG. 3, the structure of the authorization verification device 1111 according to the preferred embodiment of the present invention will be described. FIG. 3 is a block diagram showing the structure of an authorization verification device 1111 according to a preferred embodiment of the present invention. In this embodiment, the authorization verification device 1111 preferably includes an obtaining device 1114 and a checking device 1115 . Obtaining means 1114 obtains an authorization file corresponding to the digital content from the receiving means 1102 . Checking means 1115 checks whether the corresponding processing rights requested by the user are included in the authorization file. When the detecting means 1115 confirms that the authorization file includes the corresponding processing right requested by the user, the processing means 1112 then processes the digital content accordingly.

The digital content management method of the present invention will be described below with reference to FIGS. 4 to 8 .

FIG. 4 depicts a flowchart of processing performed in the content providing server 10. As shown in FIG. Firstly, the request information from the user equipment 11 is received, the request information at least includes identification information of the user terminal, identification information of the content and requested processing rights (step S410). In the present invention, the identification information of the user end may be a user identification, a device identification or an authorization domain identification. Processing rights may cause user equipment 11 to process digital content in a predetermined manner. For example, a request is made to transcode digital content stored in the user equipment 11 for the needs of the user equipment 12 being a mobile phone. Then, after receiving the processing request information from the user equipment 11, the validity of the client ID is verified (step S420). If it is determined in step S420 that the client ID is an illegal user, then the process ends.

When it is confirmed that the client ID is valid, the process proceeds to step S430. Certainly, step S420 may also be omitted in the case where the verification of the client ID is not required. Then, in step S430, the generating means 103 generates an authorization file by using a known generating method according to the request information received by the authorization receiving means 101. In this embodiment, the authorization file includes: identification information of the content, identification information of the user terminal, identification information of the authorizing terminal, processing right, content key and so on. The generated authorization file can be stored in the storage device of the content providing server 13 . Finally, in step S440, the sending means 104 sends the generated authorization file to the user equipment 11, and ends the process.

The processing for obtaining the authorization file in the user equipment 11 will be described below with reference to FIG. 5 .

Referring to FIG. 5 , FIG. 5 is a flowchart of a process in the user equipment 11 for obtaining an authorization file. First, according to the needs of the user equipment 11, the sending means 1101 sends a request to the content providing server 13 to send request information including the required predetermined processing rights, which are used to process the digital content already stored in the user equipment 11; or send The request information is required to obtain the desired digital content and to perform predetermined processing on the digital content (step S510). In the content providing server 13, according to the processing described in FIG. 4, an authorization document including processing claims is generated. Then, the authorization file receiving means 1102 receives an authorization file containing predetermined processing rights generated from the content server 13 (step S520). The received authorization file is stored in a storage device of the user equipment 11 (not shown).

The processing for processing digital content in the user equipment 11 will be described below with reference to FIG. 6 .

Referring to FIG. 6 , FIG. 6 is a flowchart for processing digital content in the user equipment 11 . First, a processing request from a user is received, such as a request to edit digital content, extract new digital content from digital content, etc. (step S610). Then, obtain an authorization file corresponding to the digital content from the authorization file receiving device 1102 (step S620). Certainly, the authorization document may also be an acceptance document obtained and stored in advance. Next, check whether the authorization file contains the processing rights required by the user (step S630). In the event that the authorization file does not contain the processing rights requested by the user, the processing is terminated. When the authorization file contains the processing right requested by the user, the processing device 1112 first encrypts the digital content using the content key in the content right, and then performs the processing requested by the user on the encrypted digital content to obtain a processed digital content. content (step S640). The processed digital content may be stored in the storage device of the user equipment 11 after being encrypted and signed. Further, in step S650, associate the relevant processing information with the processed digital content. The associated files are stored in the storage device of the user equipment 11 (not shown). Of course, step S650 may also be omitted in the case where tracking of user processing is not required.

The processing for manipulating digital content in the user device 12 will be described below with reference to FIG. 7 .

Referring to FIG. 7 , FIG. 7 is a flowchart for processing digital content in user equipment 12 . First, an operation request from a user is received, and the operation request requires to operate the processed digital content (step S710). Then, according to the associated information from the user equipment 11, it is verified whether the processed digital content is obtained in a manner authorized by the content providing server 13 (step S720), that is, whether the processing of the digital content in the user equipment 11 is authorized by the authorization end . The associated information may be sent to the user equipment 12 along with the digital content, or may be requested from the user equipment 11 when verification is required. Of course, this step can also be performed by directly contacting the content providing server 13 .

When the processed digital content is processed in an authorized manner, the processed digital content is acquired from the user device 11 (step S730). Then, the processed digital content is decrypted for the user to perform required operations on the processed digital content (step S740). The operation refers to the use without affecting the integrity of the digital content, such as playing, copying, etc.

The preferred embodiments of the present invention have been described above in conjunction with the Authorized Domain. However, it should be understood that the invention is not limited to use in authorized domains. The present invention can be applied in any application that enables the user end to process digital content in a predetermined manner by acquiring a processing right from the authorizing end.

The devices mentioned in the above flow charts for explaining the method are exemplary, and devices with similar functions and/or structures can be applied in corresponding processes.

Although the present invention has been described above in conjunction with the embodiments, it is obvious for those skilled in the art to make various substitutions, modifications and changes based on the foregoing description, therefore, all such substitutions, modifications and changes should fall within into the spirit and scope of the claims of the present invention.

Claims (26)

1, a kind of method of licensing a digital content comprises step:

(a) receive a request that comes from a user side, this request requires to authorize one of this user side to handle right, and this processing right makes this user side to handle this digital content in a predetermined mode; With

(b) according to this request, generate an authority that comprises this processing right,, make this user side handle this digital content in this predetermined mode to send this user side to.

2, the method for claim 1 also comprises step: send described authority to described user side.

3, method as claimed in claim 1 or 2 also comprises step: send described digital content to described user side.

4, method as claimed in claim 1 or 2 also comprises step: verify whether described request comes from a legal users end.

5, the method for claim 1, wherein described request also comprises the identification information of a user side.

6, method as claimed in claim 5, wherein, the identification information of described user side comprises a kind of in the following identification information: user totem information, equipment identification information and authorized domain identification information.

7, the method for claim 1, wherein described predetermined mode comprises a kind of in the following at least processing mode: this digital content is carried out transcoding; This digital content is edited; With a part of content of extraction from this digital content.

8, a kind of method that requires to authorize a digital content of a user side use comprises step:

(a) send a request, this request requires to authorize one of this user side to handle right, and this processing right makes this user side can handle the right of this digital content in a predetermined mode; With

(b) receive an authority that comprises this processing right that comes from authorization location, make this user side to handle this digital content in this predetermined mode.

9, method as claimed in claim 8, wherein, described request also comprises the identification information of a user side.

10, method as claimed in claim 9, wherein, the identification information of described user side comprises a kind of in the following at least identification information: user totem information, equipment identification information and authorized domain identification information.

11, method as claimed in claim 8, wherein, described predetermined mode comprises a kind of in the following processing mode: this digital content is carried out transcoding; This digital content is edited; With a part of content of extraction from this digital content.

12, a kind of method in a digital content of a user side processing comprises step:

(a) receive a request, this request requires to handle this digital content in a predetermined mode;

(b) verify whether this user side is authorized to handle this digital content in this predetermined mode; With

(c) when this user side is authorized to handle this digital content in this predetermined mode, handle this digital content by this predetermined mode, to obtain a digital content after the processing.

13, method as claimed in claim 12, wherein, step (b) comprising:

(i) obtain the pairing authority of this digital content;

Check that (ii) whether comprising one in this authority handles right, this this user side of processing right mandate is handled this digital content in this predetermined mode.

14, method as claimed in claim 13, wherein, described predetermined mode comprises a kind of in the following processing mode: this digital content is carried out transcoding; This digital content is edited; With a part of content of extraction from this digital content.

15, method as claimed in claim 13 also comprises step: carry out the digital content after relevant process information and the described processing related.

16, method as claimed in claim 15, wherein, described process information comprises a kind of in the following message at least: the situation and the user side identification information of this digital content before described authority information, processing mode, processing time, the processing.

17, a kind of method of the digital content after processing of a user side operation comprises step:

(a) receive a request, this request requires the digital content after this processing of operation;

(b) verify that whether digital content after this processing handle in the mode of a mandate and obtain; With

(c) when the digital content after this processing be to handle and when obtaining in the mode of this mandate, obtain digital content after this processing for this user side operation.

18, a kind of device of licensing a digital content comprises:

An authorization requests receiving trap is used to receive a request that comes from a user side, and this request requires to authorize one of this user side to handle right, and this processing right makes this user side to handle this digital content in a predetermined mode; With

A generating apparatus is used for according to this request, generates an authority that comprises this processing right, to send this user side to, makes this user side handle this digital content in this predetermined mode.

19, device as claimed in claim 18 also comprises a dispensing device, is used to send described authority to described user side.

20, device as claimed in claim 19, wherein, described dispensing device also is used to send described digital content to described user side.

21, as claim 18 or 19 described devices, also comprise a legitimate verification device, be used to verify whether described request comes from a legal users end.

22, a kind of device that requires to authorize a digital content of a user side use comprises:

A dispensing device is used to send a request, and this request requires to authorize one of this user side to handle right, and this processing right makes this user side can handle the right of this digital content in a predetermined mode; With

A mandate receiving trap is used to receive an authority that comprises this processing right that comes from authorization location, makes this user side to handle this digitized content in this predetermined mode.

23, a kind of device in a digital content of a user side processing comprises:

Handle the request receiving trap for one, be used to receive a request, this request requires to handle this digital content in a predetermined mode;

An authority checking device is used to verify whether this user side is authorized to handle this digital content in this predetermined mode; With

A treating apparatus is used for handling this digital content by this predetermined mode, to obtain a digital content after the processing when this user side is authorized to handle this digital content in this predetermined mode.

24, device as claimed in claim 23, wherein, described authority checking device comprises:

A deriving means is used to obtain the pairing authority of this digital content;

A testing fixture is used for checking whether this authority comprises one and handle right, and this this user side of processing right mandate is handled this digital content in this predetermined mode.

25, device as claimed in claim 23 also comprises an associated apparatus, be used for will be relevant process information and described processing after digital content carry out related.

26, a kind of device of the digital content after processing of a user side operation comprises:

An operation requests receiving trap is used to receive a request, and this request requires this digital content of operation;

Handle demo plant for one, be used to verify that whether digital content after this processing handle in the mode of a mandate and obtain; With

An operating means when the digital content after this processing is to handle and when obtaining in the mode of this mandate, obtains digital content after this processing for this user side operation.

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