CA2448555A1 - Digital rights management - Google Patents

Digital rights management Download PDF

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Publication number
CA2448555A1
CA2448555A1 CA002448555A CA2448555A CA2448555A1 CA 2448555 A1 CA2448555 A1 CA 2448555A1 CA 002448555 A CA002448555 A CA 002448555A CA 2448555 A CA2448555 A CA 2448555A CA 2448555 A1 CA2448555 A1 CA 2448555A1
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CA
Canada
Prior art keywords
drm
consumer
content
server
drm server
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002448555A
Other languages
French (fr)
Other versions
CA2448555C (en
Inventor
Martin Richard Lambert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oracle Corp UK Ltd
Original Assignee
Sealedmedia Limited
Martin Richard Lambert
Stellent Sealmedia Limited
Oracle Corporation Uk Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB0013682A external-priority patent/GB0013682D0/en
Priority claimed from GB0014430A external-priority patent/GB0014430D0/en
Application filed by Sealedmedia Limited, Martin Richard Lambert, Stellent Sealmedia Limited, Oracle Corporation Uk Limited filed Critical Sealedmedia Limited
Publication of CA2448555A1 publication Critical patent/CA2448555A1/en
Application granted granted Critical
Publication of CA2448555C publication Critical patent/CA2448555C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/10Office automation; Time management
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]

Abstract

A digital rights management (DRM) system for managing a consumer's access to DRM encrypted content through a DRM client of the consumer, the DRM system comprising: at least one DRM server programmed to validate an identity of a consumer and send a first copy of at least one access right for DRM encrypted content, the at least one access right comprising electronic information to be implemented by the DRM client of the consumer to enable the consumer to decrypt and access the DRM encrypted content independently of the at least one DRM
server, the first copy to be stored at the URM client of the consumer, the at least one DRM
server being further programmed to store a second copy of the at least one access right that is accessible to the at least one DRM server, wherein, upon receiving a request for engaging in a transaction with a specified DRM client of the consumer such that the consumer is able to decrypt and access the encrypted content using the at least one access right, the at least one DRM server is further programmed to:
determine whether the specified DRM client is storing the first copy of the at least one access right; where the specified DRM client is not storing the first copy of the at least one access right, access the second copy of the at least one access right;
determine whether a criterion of the DRM content prevents the consumer from being granted access to the DRM encrypted content at substantially the time of the request;
and where the criterion of the DRM content allows the consumer to access the DRM
encrypted content, allow the consumer to use the second copy of the access right to access and decrypt the DRM encrypted content using the DRM client.

Claims (48)

1. A system for managing a consumer's access to content to be rendered by a DRM client of the consumer, the system comprising:

a DRM server for engaging in a transaction with a consumer DRM client such that the transaction results in the consumer being granted at least one right to the content, the DRM server being arranged such that the at least one right is stored at the DRM server and the DRM
server checks out a copy of the at least one right to a said consumer DRM client.
2. A system according to claim 1, wherein the DRM server includes a storage device and is arranged to store the at least one right in the storage device and to allow the at least one right to reside in the storage device for a predetermined time before being made void.
3. A system according to claim 2, wherein the DRM server is arranged to void the at least one right by removing the at least one right from the storage device.
4. A system according to any of claims 1 to 3, wherein the DRM server is arranged so that the copy of the at least one right checked out to a said consumer DRM client is not identical to the at least one right stored on the DRM
server.
5. A system according to any of claims 1 to 4, wherein the DRM server is arranged to check out a further copy of the at least one right to a said consumer DRM client in the event that the or an earlier copy of said at least one right is lost or otherwise inaccessible to a said consumer DRM client.
6. A system for managing a consumer's access to content to be rendered on a consumer content rendering device, the consumer content rendering device including a storage device, and wherein a DRM server is arranged to provide a copy of at least one right to the consumer content rendering device for storage in the storage device, the system comprising:

a DRM client on a consumer content rendering device that is arranged to attempt initially to retrieve a copy of at least one right from a storage device of the consumer content rendering device, and, in the event that a copy of the at least one right is not found in the storage device, to attempt to retrieve a copy of the at least one right from a said DRM server.
7. A system according to claim 6, wherein the DRM client is arranged to allow a copy of the at least one right to reside in the storage device for a predetermined time before being made void.
8. A system according to claim 7, wherein the DRM client is arranged to void the at least one right by removing the copy of the at least one right from the storage device.
9. A system according to claim 7 or claim 8, wherein the DRM client is arranged to allow the consumer to configure the predetermined time.
10. A system for making rights management decisions relating to access to content, the system comprising:

a DRM server for making a first rights management decision based on a request from a DRM client for a right to access content and for responding to the request accordingly such that a said DRM client can make a second rights management decision based on the response from the DRM server.
11. A system according to claim 10, wherein the DRM server is arranged so that the first rights management decision includes the DRM server refusing to grant a said DRM client the right to access the content on the basis that granting the right would cause a concurrent consumer limit to be exceeded.
12. A system according to claim 10 or claim 11, wherein the DRM server is arranged so that the first distributed rights management decision includes granting the right to access the content on a plurality of devices.
13. A system according to any of claims 10 to 12, wherein the DRM server is arranged so that the first distributed rights management decision includes limiting the number of devices that can be used to access the content.
14. A system according to any of claims 10 to 13, wherein the DRM server is arranged to modify at least one individual right specification based upon at least one item of consumer information received from a DRM client.
15. A system according to any of claims 10 to 14, wherein the DRM server is arranged to store a group right specification for at least one consumer of a group of consumers and to make a rights management decision based on the group right specification.
16. A system according to any of claims 10 to 15, wherein the DRM server is arranged to modify at least one individual right specification associated with a first publisher based upon at least one transaction associated with a second publisher.
17. A system for making rights management decisions for content, the system comprising:

a DRM client that is arranged to request from a DRM
server a right to access content and to receive from a said DRM server the result of a first rights management decision made at the DRM server, the DRM client further being arranged to make a second rights management decision based on a said result received from a said DRM server.
18. A system according to claim 17, wherein the DRM client is arranged so that the second rights management decision includes determining whether the DRM client has a right to print the content.
19. A system according to claim 17 or claim 18, wherein the DRM client is arranged so that the second rights management decision includes determining whether the DRM
client has a right to save the content to a storage device.
20. A system for logging access to content by one or more consumers, the system comprising:

a DRM server that is arranged to log requests for access to content to produce a first log record and to receive from at least one DRM client a second log record of access to the content.
21. A system according to claim 20, wherein the DRM server is arranged to merge the first log record and the second log record.
22. A consumer DRM client arranged to log access to content by the DRM client to produce a log record, the DRM
client further being arranged to transmit the log record to a DRM server.
23. A DRM client according to claim 22, wherein the DRM
client is arranged to temporarily cache the log record and to send the log record to a said DRM server after a predetermined period of time.
24. A system for obtaining from a DRM server a right to access content on a consumer device, the right to access the content being stored in both the consumer device and the DRM server, the system comprising:

a DRM client; and, a consumer device with which the DRM client is associated;

the DRM client being arranged first to attempt to retrieve the right from the consumer device and then, if unable to retrieve the right from the consumer device, to attempt to retrieve the right from a said DRM server.
25. A system according to claim 24, wherein the consumer device has both persistent storage and non-persistent storage, the DRM client being arranged to attempt to retrieve the right in the following order:

from the non-persistent storage of the consumer device, and then, if the right cannot be retrieved from the non-persistent storage of the consumer device, from the persistent storage of the consumer device, and then, if the right cannot be retrieved from the persistent storage of the consumer device, from a said DRM server.
26. A system for managing rights to content, the system comprising:

a DRM server that is arranged to handle rights management on behalf of a plurality of content publishers and to issue rights to one or more consumers accordingly.
27. A system according to claim 26, wherein the DRM server is arranged to participate in rights management decisions in cooperation with a client-side DRM system.
28. A system according to claim 26 or claim 27, wherein the DRM server is arranged to issue rights to DRM-protected content without which access to the said DRM-protected content is precluded.
29. A system according to any of claims 26 to 28, wherein the DRM server is arranged to maintain accounts for consumers into which the plurality of content publishers can deposit consumer-specific rights.
30. A system according to any of claims 26 to 29, wherein the DRM server is arranged to require that a consumer provide a consumer identification in order to download a right to access content.
31. A system according to any of claims 26 to 30, wherein the DRM server is arranged to implement cross-consumer rights management policies.
32. A system according to any of claims 26 to 31, wherein the DRM server is arranged to implement cross-publisher rights management policies.
33. A system according to any of claims 26 to 32, wherein the DRM server is arranged to permit at least one consumer to roam between at least two consumer devices and to ensure that said at least one consumer can only simultaneously access the content on a limited number of the at least two consumer devices.
34. A system according to any of claims 26 to 33, wherein the DRM server is arranged to deliver a copy of a right to a consumer whilst retaining a copy of the right in storage.
35. A system for providing rights to content to consumers, the system comprising:
a server that is arranged to provide a network-accessible interface that is arranged to enable publishers of content to create and configure rights templates that can be subsequently purchased by or granted to consumers as rights instances.
36. A system according to claim 35, wherein the server is arranged to provide consumer accounts in which the rights instances can be stored.
37. A system for providing rights to content to consumers, the system comprising:
a DRM server that is arranged to calculate a charge for a publisher based upon the number of consumers holding rights to content from the publisher on the DRM server.
38. A system according to claim 37, wherein the DRM server is arranged to redetermine the charge at predetermined intervals.
39. A system for providing rights to content of a publisher to consumers, the system comprising:
a DRM server that is arranged to calculate a charge for a publisher based upon the loading imposed on the DRM
server by consumers holding the rights to content of said publisher.
40. A system according to claim 39, wherein the charge is based on the number of individual accesses to the DRM
server resulting from the consumers accessing content of said publisher.
41. A system for providing rights to content of a publisher to consumers, the system comprising:
a DRM server that is arranged to calculate a charge for a publisher based upon the volume of the rights maintained on the DRM server on behalf of consumers holding the rights to content of the publisher.
42. A system according to claim 41, wherein the volume of the rights is determined in accordance with the time that the DRM server holds said rights.
43. A system for providing rights to content of a publisher to consumers, the system comprising:
a DRM server that is arranged to calculate a charge for a publisher based upon a percentage of the value of rights associated with content produced by the publisher and maintained by the DRM server.
44. A DRM client for obtaining access rights to DRM
encrypted content and decrypting the content, the DRM
client also being capable of encrypting content.
45. A DRM client according to claim 44, wherein the DRM
client is capable of adding a digital signature to content encrypted by the DRM client.
46. In combination, at least two DRM servers with a gateway therebetween, wherein one of the DRM servers is arranged to hold an account on behalf of a consumer and to allow said consumer to access DRM-protected content whose rights are controlled by the other of said DRM servers via the gateway.
47. A combination according to claim 46, wherein the gateway between the at least two DRM servers is operated subject to cross-charging relationships between the operators of the DRM servers.
48. A combination according to claim 46 or claim 47, wherein the one of the DRM servers that holds an account for a consumer is arranged to forward consolidated usage reports, consolidated statements and consolidated billing to said consumer based on total access to the DRM servers by the consumer.
CA2448555A 2000-06-05 2001-06-05 Digital rights management Expired - Lifetime CA2448555C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB0013682A GB0013682D0 (en) 2000-06-05 2000-06-05 Digital rights management bureau
GB0013682.0 2000-06-05
GB0014430A GB0014430D0 (en) 2000-06-13 2000-06-13 Distributed digital rights management
GB0014430.3 2000-06-13
PCT/GB2001/002486 WO2001095175A2 (en) 2000-06-05 2001-06-05 Digital rights management

Publications (2)

Publication Number Publication Date
CA2448555A1 true CA2448555A1 (en) 2001-12-13
CA2448555C CA2448555C (en) 2011-08-16

Family

ID=26244436

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2448555A Expired - Lifetime CA2448555C (en) 2000-06-05 2001-06-05 Digital rights management

Country Status (6)

Country Link
US (3) US7509421B2 (en)
EP (1) EP1287474B1 (en)
AU (1) AU2001262517A1 (en)
CA (1) CA2448555C (en)
GB (1) GB2372354B (en)
WO (1) WO2001095175A2 (en)

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