CN101141242B - Method and system for processing authority information - Google Patents

Abstract

The invention discloses a method for processing authority information so as to correctly record and use the consumption status information; the method includes: consuming content according to the licensed original authority information; for consumption authority, recording the corresponding consumption according to the situation of consumption content status information, and associate the consumption status information with the original permission information. The invention also discloses a terminal device, a server and a rights information management system.

Description

A method and system for processing authority information

technical field

The invention relates to the technical field of digital rights management, in particular to a method and system for processing rights information. the

Background technique

Digital Rights Management (DRM) mainly controls the use of digital content through rights restrictions and content protection schemes to protect the legitimate rights and interests of content owners. After the digital content issuer (Content Issuer, CI) encrypts the digital content, the user downloads the encrypted digital content data package to the terminal device; the copyright issuer (Rights Issuer, RI) is responsible for distributing the license corresponding to the digital content , which includes the content key and the corresponding permission, the content key is used to decrypt the digital content. The purchased digital content can only be used normally by the terminal device only if it has both the content data package (which contains the information necessary for decrypting the digital content) and the license. The DRM agent (DRM Agent) uses the public key of the terminal device to decrypt the license key, obtains the content key in the license from the license key to decrypt the digital content, and controls the user's access to the digital content according to the permission information in the license. specific use of the content. the

Permissions in licenses mainly include rights and restrictions. According to the different restrictions included, it is divided into stateful license and stateless license; the stateful license is a license that contains state restrictions such as times (count), time (including time period, cumulative time, etc.); the stateless license License without state restrictions under all rights in this License. the

According to the different types of restrictive elements contained in rights, rights can be divided into non-consumable rights and consumable rights. The so-called non-consumable right means that the use of the right will not affect the subsequent use, such as the right that does not contain restrictive elements or the right that includes restrictions such as time period, space range, and system environment; It is gradually consumed with the increase of use, such as: the right to include restrictions on accumulated time and times. the

The license sharing methods include license transfer, copying, temporary sharing, etc. Existing technology requires license (Rights Object, RO) transfer to carry license identification ROID, original rights information, consumption status information and content key and other information. However, how to describe the consumption state information, and how to represent the corresponding relationship between the consumption state information and the original authority information in the process of storing and transferring the RO has become an urgent problem to be solved. the

Contents of the invention

The invention provides a method and system for realizing authority information interaction, so as to correctly record and use consumption state information. the

The present invention provides the following technical solutions:

A method for processing permission information, the method includes the steps of:

Consume content in accordance with licensed original rights information;

For consumption rights, record the corresponding consumption status information according to the situation of consumption content, and associate the consumption status information with the original rights information, wherein the consumption status information is described by adding status information elements in the rights description language, The state information element is defined in the message conveying the permission or defined in the permission;

When consuming again, when the consumption status information is the currently available status information of the license, consume the content according to the consumption status information, or, when the consumption status information is the consumed rights information of the license, according to the consumption status information The state information and the original rights information associated therewith consume the content. the

According to the above method:

The consumption state information is the current available state information of the license; or, the consumption state information is the consumed right information of the license. the

The consumption state information is associated with the original authority information through identification. the

Each permission information item in the original permission information is provided with a unique identifier, and the consumption status information item in the consumption status information refers to the unique identifier to associate with the corresponding permission information item. the

The original authority information and the consumption state information are recorded in the same file; or, the original authority information and the consumption state information are recorded in different files. the

A method for processing permission information, the method includes the steps of:

requesting consumption of content controlled by the licensed consumption class rights;

For consumption rights, determine whether there is consumption status information associated with the original rights information of the license, if yes, consume the content according to the rights, otherwise, consume the content according to the original rights information and create a consumption status information; and

Update the consumption status information according to the situation of the user's consumption of content;

The consumption state information is described by adding a state information element in the right description language, and the state information element is defined in the message transferring the license or defined in the license. the

According to the above method:

The consumption state information is the current available state information of the license; or, the consumption state information is the consumed right information of the license. the

The consuming content according to the authority refers to consuming content according to the consumption state information when the consumption state information is the current available state information of the license; or, the consuming content according to the authority means when the consumption state information is the licensed state information. When using the consumed rights information, the content is consumed according to the consumption state information and the original rights information associated therewith. the

The consumption state information is associated with the original authority information through identification. the

Each permission information item in the original permission information is provided with a unique identifier, and the consumption status information item in the consumption status information refers to the unique identifier to associate with the corresponding permission information item. the

The original authority information and the consumption state information are recorded in the same file; or, the original authority information and the consumption state information are recorded in different files. the

A method for transmitting permission information, the method comprising the steps of:

Associating the original permission information of the licensed consumption permission with the corresponding consumption status information on the first device;

The first device sends the original permission information and the consumption state information associated therewith to the second device;

The second device receives and saves the original permission information and the consumption state information associated therewith;

Wherein the consumption state information is described by adding a state information element in the right description language, and the state information element is defined in the message for transferring the license or defined in the license. the

According to the above method:

The second device controls the subsequent consumption of content according to the stored original rights information and consumption state information. the

The consumption state information is the current available state information of the license; or, the consumption state information is the consumed right information of the license. the

The consumption state information is associated with the original authority information through identification. the

Each permission information item in the original permission information is provided with a unique identifier, and the consumption status information item in the consumption status information refers to the unique identifier to associate with the corresponding permission information item. the

A terminal device comprising:

A module for controlling the consumption of content based on licensed original rights information and consumption state information associated therewith;

A module for recording the corresponding consumption status information according to the situation of the user consuming content according to the consumption permission, and associating the consumption status information with the original permission information;

A module for receiving or sending the original permission information and the consumption state information associated therewith;

The consumption state information is described by adding a state information element in the right description language, and the state information element is defined in the message transferring the license or defined in the license. the

A server comprising:

A module for parsing the consumption status information of the license and associating the consumption status information with the original permission information of the consumption permission;

A module for receiving or sending the original permission information and the consumption state information associated therewith;

The consumption state information is described by adding a state information element in the right description language, and the state information element is defined in the message transferring the license or defined in the license. the

The server is a license server. the

A rights information management system, comprising: a first device, configured to record licensed consumption state information, associate original rights information of licensed consumption rights with corresponding consumption state information, and send the original Permission information and consumption status information associated with it;

The second device is used to receive and save the original permission information and consumption status information associated therewith;

The consumption state information is described by adding a state information element in the right description language, and the state information element is defined in the message transferring the license or defined in the license. the

Wherein, the consumption state information is associated with the original authority information through identification. the

Each permission information item in the original permission information is provided with a unique identifier, and the consumption status information item in the consumption status information refers to the unique identifier to associate with the corresponding permission information item. the

The first device and the second device are terminal devices or servers. the

The server is a license server. the

The beneficial effects of the present invention are as follows:

1. When the terminal device consumes content according to the licensed authority, the present invention creates consumption state information to record the consumption of the content, and the recorded consumption state information is associated with the corresponding original authority information, so as to correctly control the follow-up of the content. Consumption. the

2. In the present invention, when two entities perform license transfer, copy, backup and other operations that require the exchange of permission information, the accurate association between the original permission information of the license and the consumption status information can be ensured in the process of message interaction , thereby improving the security of the DRM system. the

Description of drawings

Figure 1 is a schematic diagram of the association between licensed consumption status information and original authority information in an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a rights information management system in an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a terminal device in an embodiment of the present invention;

Fig. 4 is the flow chart of terminal device use license consumption content in the embodiment of the present invention;

Fig. 5 is the flow chart of transferring license between terminal devices in the embodiment of the present invention;

Fig. 6 is the structural representation of server in the embodiment of the present invention;

Fig. 7 is a flow chart of a terminal device backing up a license on a server in an embodiment of the present invention. the

Detailed ways

The present invention adds elements for describing consumption status information in the rights description language (REL); and, by adding an identification attribute (id) and an identification reference attribute (idref ) to match the consumption status information with the original permission information. the

The consumption state information indicates the state after the consumption of the original authority information of the consumption type authority of the license. Taking OMA (Open Mobile Alliance, Open Mobile Alliance) DRM as an example, the consumption state information can be added by adding the state information < stateInfo> element to describe, this element can be defined in the message that transmits the permission RO (Rights Object), or can be defined in the permission RO. the

For example, define the consumption status information field in the message that transmits permission-related information:

<element name="stateInfo"type="o-ex:constraintType"minOccurs="0"maxOccurs="unbounded"/>

Alternatively, an element used to record consumption status information is defined in the license RO, which contains one or more restriction items, and the identification reference attribute idref of each restriction item (such as count/time interval, etc.) indicates the consumption status information The restricted items in the original permission information associated with the restricted items in . The specific definition is as follows:

<! ELEMENT oma-dd:stateInfo(o-dd:count?, oma-dd:timed-count?, o-dd:datetime?, o-dd:accumulated?)>

Alternatively, the element used to record the consumption state information contains a restriction <constraint> sub-element, and the <constraint> sub-element further contains specific restriction items. the

<! ELEMENT oma-dd:stateInfo(o-ex:constraint?)>

Taking the restriction items count and interval as an example, define the identification attribute id and the identification reference attribute idref for them respectively; the identification attribute id is used to uniquely identify an original permission information item within a license, and the identification reference attribute idref is used To refer to the corresponding original permission information item in the consumption status information item. The value of the <count> item in the consumption state information item can indicate the number of times consumed, or the remaining number of times, which can be defined by different application scenarios or determined by the attribute of <stateInfo>. the

<! ATTLIST o-dd: count o-ex: id ID#IMPLIED>//Identify the case where the parent element <constraint> of <count> for the identification attribute id belongs to the original permission information, and is used to uniquely identify the original permission information item. the

<! ATTLIST o-dd: count o-ex: idref IDREF #IMPLIED>//Identification reference attribute idref is applicable to the situation where the parent element <constraint> of <count> belongs to the consumption state information, and is used to compare the consumption state information with the corresponding original permission information Associated. the

The value of the time interval <interval> in the consumption state information item indicates the length of time for the user to consume the digital content for the first time. For example, <interval>10h</interval> means that the time starts from the user's first consumption of the content, and it can be used within 10 hours, and it will be banned after 10 hours. Therefore, when recording the consumption status of <interval>, it can also be converted into a time period datetime for recording. the

<! ATTLIST o-dd:interval o-ex:id ID #IMPLIED>//The identification attribute id applies to the case where the parent element <constraint> of <interval> belongs to the original permission information, and is used to uniquely identify the original permission information item. the

<! ATTLIST o-dd:datetime o-ex:idref IDREF #IMPLIED>//Identification reference attribute idref is applicable to the situation where the parent element <constraint> of <datetime> belongs to the situation of consumption status information, which is used to compare the consumption status information with the corresponding original permission information Associated. the

Since the recorded consumption status information can represent both the currently available permissions and the consumed permissions, you can further add an attribute to stateInfo to indicate its meaning, such as:

<! ATTLIST oma-dd:stateInfo oma-ex:mode#IMPLIED>//Used to indicate whether it is "remaining" or "consumed"

The transmission of permission-related information can be realized by means of permission transfer (move), copy (copy), share (share), and the like. After obtaining the rights-related information, the target entity determines locally available rights-related information according to the "original rights information item-consumption status information item" pair, and controls the consumption of digital content according to the rights-related information. Referring to Fig. 1, the consumption state information item a represents the state after the original rights information item 1 is consumed, and they are related by "identification=001"; the consumption state information item b represents the state after the original rights information item 3 is consumed Status, they are associated with each other through "identification = 003". the

A specific example of describing the rights-related information when transferring the rights-related information is given below. This example shows that the license originally obtained by the user contains a play permission, which can only be played 10 times at most, and the system for playing the digital content corresponding to the license must be version XYZ v1.0; and so far , 10 times of playback rights have been consumed 2 times, that is, the current user still has 8 times of playback rights for the content, and the restricted playback system must be XYZ v1.0. the

……

<permission>

<play>

<constraint>

<count id="c1">10</count>

<system>

<context>

<version>1.0</version>

<uid>XYZ</uid>

</context>

</system>

</constraint>

</play>

</permission>

……

……

<stateInfo>

<count idref="c1">2</count>

</stateInfo>

……

In another example, the user initially obtains a license with playback rights and an interval limited to 10 hours. The user played the corresponding content for the first time at 14:00 on March 1, 2006. According to the definition of interval, the user can only play the content at most before 24:00 on March 1, 2006, so the corresponding consumption status information The end time recorded in is 2006-03-01T24:00:00Z. the

……

<permission>

<play>

<constraint>

<interval id="i1">10h</interval>

</constraint>

</play>

</permission>

……

……

<stateInfo>

<datetime idref="i1">

<end>2006-03-01T24:00:00Z</end>

</datetime>

</stateInfo>

……

Similarly, you can add identification attribute id and identification reference attribute idref for other restriction items, such as: timed-count, accumulated, etc.; you can also set id and idref attributes for each right item, such as in play, print, execute and other right elements Define the id and idref attributes respectively. the

In the above process, each permission item is identified and referenced through id and idref attributes, and ID and IDREF can also be used as sub-elements of each permission item to achieve the purpose of identification and reference. like:

<! ELEMENT o-dd:count(oma-dd:id, oma-dd:idref)>

Since a <constraint> generally does not have multiple identical restriction items, in addition to identifying the specific restriction item, id can also be used to identify the <constraint> element, which can also achieve the purpose of uniquely identifying the restriction item. like:

<permission>

<play>

<constraint id="001">

<count>10</count>

<system>

<context>

<version>1.0</version>

<uid>XYZ</uid>

</context>

</system>

</constraint>

</play>

</permission>

……

……

<stateInfo idref="001">

<count>2</count>

</stateInfo>

……

In the above process, since idref can only be used for internal reference, only when the original permission information and consumption status information are recorded in the same file (such as Rights Object), can the two be associated by means of id and idref. If the original permission information and consumption status information are recorded separately, other elements or attributes need to be defined to associate the two, for example, use the identification attribute id to associate the two, and take the <constraint> element as an example to define the id attribute. the

<! ATTLIST o-ex:constraint o-ex:id ID #IMPLIED>//When the parent element <constraint> of <count> is in the original information, the id is used to uniquely identify the <cosntraint> element in the RO, and will "stateInfo" is associated with <constraint> in the corresponding original permission information. the

Define the consumption status information field in the message that transmits permission-related information:

<element name="stateInfo"type="o-ex:constraintType"minOccurs="0"maxOccurs="unbounded"/>//

Associate the two through the id attribute of <constraint> and stateInfo, such as:

<permission>

<play>

<constraint id="001">

<count>10</count>

<system>

<context>

<version>1.0</version>

<uid>XYZ</uid>

</context>

</system>

</constraint>

</play>

</permission>

……

……

<stateInfo id="001">

<count>2</count>

</stateInfo>

……

Referring to Fig. 2, the authority information management system in this embodiment includes a plurality of terminal devices 200 and a server 201; the plurality of terminal devices 200 are used to exchange authority-related information when transferring licenses between each other, and the authority-related information reflect the current consumption state of the transferred license; or, for exchanging rights-related information when backing up the license on the server, the rights-related information reflects the current consumption state of the backed up license; the server 201 is used for backing up the license, and Associating the consumption state information of the license with the original rights information; preferably, the server is a license server. the

3, the terminal device 200 includes a display module 300, a license processing module 301, a security module 302, a communication module 303, a status information analysis module 304 and a status information recording module 305; The user provides an interface to trigger the consumption of digital content; the license processing module 301 is used to control the use of digital content according to the current available state information of the license; the security module 302 is used to sign and verify the signature during communication; The communication module 303 is used to create interactive messages and communicate with other devices; the status information analysis module 304 is used to analyze the consumption status information in the license, and correlate the consumption status information with the original permission information of the license To obtain the current available status information of the license, and send the current available status information of the license to the license processing module 301; the status information recording module 305 is used to record the corresponding Consumption status information. the

Referring to FIG. 4, the processing flow of the terminal device 200 locally using a consumable license to consume content is as follows:

Step 400, the user triggers local consumption of digital content through the interface provided by the display module, and the consumption authority of the content is P_action. the

Step 401, the license processing module searches for the local corresponding license-related information according to the identification attribute id of the digital content. the

Step 402 , after finding the corresponding license-related information, the license processing module further judges whether the license has consumption authority P_action; if yes, proceed to step 403 , otherwise proceed to step 408 . the

Step 403 , after determining that the license has consumption rights, the license processing module further judges whether the license is a stateful license, if yes, proceed to step 404 , otherwise proceed to step 409 . the

Step 404, the state information analyzing module reads the consumption state information of the license. the

Step 405, the state information analysis module further judges whether the license is a consumption license according to the read consumption status information of the license, if yes, proceed to step 406, otherwise proceed to step 407. the

Step 406, the state information parsing module associates the consumption state information with the original right information according to the identification reference attribute idref, so as to obtain the current available state information of the license. the

Step 407, the state information parsing module transmits the current available state information of the license to the license processing module. the

Step 408 , the license processing module judges whether the terminal device is allowed to execute the consumption action according to the current available state information of the license, if yes, proceed to step 409 , otherwise reject the terminal device to consume the license. the

Step 409: After the license processing module determines that the terminal device is allowed to perform the consumption action, it consumes the corresponding digital content according to the current available status information of the license, and at the same time, the status information recording module updates the consumption status information of the license. the

Referring to Figure 5, when the terminal devices 200 transfer consumption licenses to each other, the processing flow is as follows:

Step 500, the source device consumes a consumable license locally, and records the consumption status information of the license at the same time; when recording the consumption status information, the value of the identification reference attribute idref of the recorded restriction item is consistent with the value of the currently consumed license The value of the identification attribute id of the corresponding restriction item in the original permission information is the same; when the consumption state information is recorded as the state information that has been consumed, when consuming again, it is necessary to combine the original state information and consumption state information to obtain the currently available state information, and control the use of digital content based on this information; when the consumption state information is recorded as the currently available state information, and then consume again, directly control the use of digital content based on this information. the

Step 501. When the license contains an available license transfer (move) right item, the user triggers the transfer of the license that has been used by the source device with partial rights from the source device to the destination device. the

Step 502, the source device initiates a license transfer request to the destination device, and sends a license transfer request message to the destination device, the information carried in the message includes: license identifier, original authority information, consumption status information and key information; wherein, the The original rights information is the rights and restrictions initially obtained by the source device; the consumption status information is the consumption status information recorded in step 500 including the identification reference attribute idref; the key information is the public key of the destination device used by the source device Content key for information repackaging. the

Step 503: The destination device responds to the license transfer request of the source device, and returns a license transfer response message to the source device; the license transfer response message indicates whether the license transfer of the source device succeeds or fails, and may also reflect more detailed content, such as failure reasons, etc. . the

Step 504. When the transfer of the license is successful, the destination device uses the obtained license locally, and records the consumption state information of the license at the same time, and uses the consumption state information to control the use of the digital content. The usage method is the same as that in step 500. stated. the

The process shown in Figure 5 is the interaction of consumption licenses between terminal devices. When terminal devices interact with non-consumable licenses, there is no need to interact with consumption status information. the

Referring to FIG. 6 , the server 201 includes a display module 600 , a license processing module 601 , a security module 602 , a communication module 603 , and a state information analysis module 604 . The display module 600 is used to provide the user with an interface for displaying the consumption state of the backed up license; the license processing module 601 is used to back up license-related information, and the license-related information reflects the current available status of the license; the The security module 602 is used for signing and verifying signatures during communication; the communication module 603 is used for building interactive messages and communicating with other devices; the status information analysis module 604 is used for analyzing the consumption status in the license information, and associate the consumption state information with the original rights information of the license to obtain the current available state information of the license, and send the current available state information of the license to the license processing module 601. the

Referring to Figure 7, when the terminal device backs up the consumption license on the server, its processing flow is as follows:

Step 700, the source device consumes a local license, and records the consumption status information at the same time; when recording the consumption status information, the value of the identification reference attribute idref of the recorded restriction item is the value of the corresponding restriction item under the currently consumed right item The value of the identification attribute id is consistent; when the consumption state information is recorded as being consumed, then when consuming again, it is necessary to combine the original state information and consumption state information to obtain the currently available state information, and control the consumption based on this information The use of digital content; when the consumption status information is recorded as a remaining status, the use of digital content is directly controlled according to the consumption status information when consumption is performed again. the

Step 701. When the server can provide the network backup function, the user triggers to back up the part of the license that has been used by the source device from the source device to the server. the

Step 702, the source device initiates a license backup request to the server, and sends a license backup request message to the server, the information carried in the message includes license identification and consumption status information; wherein, the consumption status information is recorded in step 700 and includes idref attribute consumption status information; in addition, the license backup request message may also include original rights information and key information; the original rights information is the rights and restrictions initially obtained by the source device; the key information is Information related to the content key, which can be encapsulated by the server’s public key; when the server has stored the original information of the license, combined with the reported license ID and consumption status information, accurate available permission information can be obtained. Then the license backup request message does not need to carry the original rights information; when the server has stored the content key locally, the license backup request message does not need to carry the key information. the

Step 703, the server responds to the license backup request of the terminal device, and returns a license backup response message to the terminal device; the license backup response message indicates whether the terminal device license backup succeeds or fails, and may also reflect more detailed content, such as failure reasons. the

Step 704, when the license is backed up successfully, make the license in a recoverable state, and subsequently restore the previously backed up license from the server. the

It can be seen from the above-mentioned embodiments that when the terminal device consumes content according to the authorized authority, the present invention creates consumption state information to record the consumption situation of the content, and the recorded consumption state information is associated with the corresponding original authority information, so as to correctly Control the subsequent consumption of content; further, in the present invention, when two entities perform operations such as transferring, copying, and backing up licenses that require the exchange of permission information, the original permission information of the license can be guaranteed in the process of message interaction Accurate association with consumption status information, thereby improving the security of the DRM system. the

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies, the present invention also intends to include these modifications and variations. the

Claims (15)

1. A method for processing authority information, characterized in that the method comprises steps: Consume content in accordance with licensed original rights information; For consumption rights, record the corresponding consumption status information according to the situation of consumption content, and associate the consumption status information with the original rights information, wherein the consumption status information is described by adding status information elements in the rights description language, The status information element is defined in the message of transferring the license or defined in the license, each rights information item in the original rights information is respectively set with a unique identifier, and the consumption status information item in the consumption status information refers to the unique ID Associated with the corresponding permission information item; When consuming again, when the consumption status information is the currently available status information of the license, consume the content according to the consumption status information, or, when the consumption status information is the consumed rights information of the license, according to the consumption status information The state information and the original rights information associated therewith consume the content. 2 . The method according to claim 1 , wherein the consumption status information is current available status information of the license; or, the consumption status information is consumed rights information of the license. 3. The method according to any one of claims 1 to 2, wherein the original authority information and consumption status information are recorded in the same file; or, the original authority information and consumption status information are recorded in different in the file. 4. A method for processing authority information, characterized in that the method comprises the steps of: requesting consumption of content controlled by a license; For consumption rights, determine whether there is consumption status information associated with the original rights information of the license, if so, when the consumption status information is the current available status information of the license, consume content according to the consumption status information, or, When the consumption state information is licensed and consumed rights information, consume content according to the consumption state information and original rights information associated therewith; Otherwise, consume the content according to the original authority information and create consumption state information associated with the original authority information, each authority information item in the original authority information is respectively set with a unique identifier, and the consumption state information in the consumption state information The unique identifier described in the item reference is associated with the corresponding permission information item; and Updating the consumption state information according to the situation of the user's content consumption; The consumption state information is described by adding a state information element in the right description language, and the state information element is defined in the message transferring the license or defined in the license. 5. The method according to claim 4, wherein the original authority information and the consumption state information are recorded in the same file; or, the original authority information and the consumption state information are recorded in different files. 6. A method for transmitting authority information, characterized in that the method comprises the steps of: On the first device, the original permission information of the licensed consumption permission is associated with the corresponding consumption status information; each permission information item in the original permission information is respectively provided with a unique identifier, and the consumption status information in the consumption status information The unique identifier mentioned in the item reference is associated with the corresponding permission information item; The first device sends the original permission information and consumption state information associated therewith to the second device; The second device receives and saves the original permission information and consumption status information associated therewith; The consumption state information is described by adding a state information element in the right description language, and the state information element is defined in the message transferring the license or defined in the license. 7. The method according to claim 6, wherein the first device sends the original rights information and consumption state information associated therewith when transferring, copying or sharing the license. 8. The method according to claim 6, wherein the second device controls the subsequent consumption of content according to the stored original rights information and consumption status information. 9 . The method according to claim 6 , wherein the consumption status information is current available status information of the license; or, the consumption status information is consumed rights information of the license. 10. A terminal device, characterized in that, comprising: means for controlling consumption of content based on licensed original rights information and consumption state information associated therewith; A module for recording corresponding consumption state information according to the situation of the user consuming content according to consumption rights, and associating the consumption state information with the original rights information, wherein each rights information item in the original rights information is respectively set with A unique identifier, the consumption status information item in the consumption status information refers to the unique ID associated with the corresponding authority information item; A module for receiving or sending the original rights information and consumption state information associated therewith; The consumption state information is described by adding a state information element in the rights description language, and the state information element is defined in the message transferring the license or defined in the license. 11. A server, characterized in that, comprising: A module for parsing licensed consumption state information and associating the consumption state information with the original authority information of the consumption type authority, each authority information item in the original authority information is respectively provided with a unique identifier, and the consumption state information in the consumption state information The consumption state information item refers to the unique identifier associated with the corresponding authority information item; A module for receiving or sending the original rights information and consumption state information associated therewith; The consumption state information is described by adding a state information element in the rights description language, and the state information element is defined in the message transferring the license or defined in the license. 12. The server of claim 11, wherein the server is a license server. 13. A permission information management system, comprising: The first device is configured to record the consumption status information of the license, associate the original rights information of the consumption rights of the license with the corresponding consumption status information, and send the original rights information and the associated consumption status information to the second device. State information, each authority information item in the original authority information is respectively provided with a unique identifier, and the consumption state information item in the consumption state information refers to the unique identifier and is associated with the corresponding authority information item; The second device is configured to receive and save the original permission information and consumption state information associated therewith; The consumption state information is described by adding a state information element in the rights description language, and the state information element is defined in the message transferring the license or defined in the license. 14. The system according to claim 13, wherein the first device and the second device are terminal devices or servers. 15. The system of claim 14, wherein the server is a license server.

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