摘要:
Methods and arrangements for enabling the use of a first device (300) for controlling transfer of media content from a content provider (306) to a second device (302). The first device has a pre-established security association with the communications network. When the network detects a request made by the first device for delivery of media content to the second device, key information is established which enables determination of one or more media keys for encryption of the media content. The network sends key information to the content provider and to the first device. The content provider then delivers media content encrypted by the media key(s) to the second device. Further, the first device forward the media key(s) over a local communication link to the second device for decryption of media content encrypted by the media key(s) when delivered by the content provider.
摘要:
Methods and arrangements for enabling the use of a first device (300) for controlling transfer of media content from a content provider (306) to a second device (302). The first device has a pre-established security association with the communications network. When the network detects a request made by the first device for delivery of media content to the second device, key information is established which enables determination of one or more media keys for encryption of the media content. The network sends key information to the content provider and to the first device. The content provider then delivers media content encrypted by the media key(s) to the second device. Further, the first device forward the media key(s) over a local communication link to the second device for decryption of media content encrypted by the media key(s) when delivered by the content provider.
摘要:
Disclosed is a DRM device and method for providing secure linking to a user identity. A first request is sent to a subscriber identity module. A message is received from the subscriber identity module via a secure authenticated channel. The message comprises at least a master key identifier, a random number, and a derived key. In response to the message, a second request is sent to a DRM server. The second request comprises at least a master key identifier, the device identifier, and a random number. Also disclosed is a DRM server and method for providing secure linking to a user identity. A first request is received from a DRM device. The first request comprises at least master key identifier, a device identifier, and a random number. The DRM device is authenticated. A second request for an application specific key is sent to a trusted key management server. The second request comprises at least a master key identifier. At least a key is received from the trusted key management server. A derived key is determined from the key received from the trusted key management server based at least on the device identifier and the random number. A challenge/response scheme is used to determine whether the derived key of the DRM server matches a derived key of the DRM device.
摘要:
The invention refers to a method of supporting a sending user device (14) to enforcing a usage control of digital content embedded in a content object, CO, wherein a rights object, RO, associated to the CO is required for using the digital content of the CO at a receiving user device (16), the method comprising generating at the sending user device (14) a encryption information for decrypting the encrypted digital content and inserting the decryption information into the RO, and sending the RO to a rights management server (12) to be forwarded to the receiving user device (16). The invention further refers to a corresponding method of receiving at a rights management server (12) a rights object generation request to be forwarded to the receiving user device (16), and to a corresponding user device server and a corresponding server.
摘要:
A method for imposing one or more usage constraints on digital content, the method comprising communicating a digital content data item to a digital content receiver system; wherein the digital content data item includes the digital content and a usage constraint data item different from a digital license data item, or a reference to said usage constraint data item, the use case item being indicative of the one or more usage constraints.
摘要:
Imposing one or more usage constraints on digital content involves communicating a digital content data item to a digital content receiver system. The digital content data item includes the digital content and a usage constraint data item different from a digital license data item, or a reference to the usage constraint data item, the use case item being indicative of the one or more usage constraints.
摘要:
The embodiments of the present invention relate to apparatuses, in terms of a client device (110) and a server (120) and to methods in the client device (110) and in the server (120) respectively for enabling a user to consume content provided by a content provider. According to the method in the client device (120) the method comprises: assembling a request for rights for consuming a content and indicating in the request which content to consume; determining if an upgrade key, associated with the content, is present in the client device; including, in such a case, in the request, an identifier of the upgrade key that is associated with the content, sending the request to the content provider; receiving, a response comprising an encrypted rights object; decrypting the encrypted rights object and starting to use the rights object for consuming the content.
摘要:
A method for establishing a secured communication channel, between a first processing component and a second processing component; the method comprising executing a digital rights management agent on a processing unit, the digital rights management agent being configured to enforce permissions associated with digital content based on a digital rights management protection mechanism; receiving, by the digital rights management agent at least a security data item, the security data item including a session key data item; verifying authenticity of the received session key data item by the digital rights management agent using said digital rights management protection mechanism; providing the verified session key data item by the digital rights management agent to at least the second processing component; establishing a secured communication channel between the first and second processing components using at least the provided session key data item.
摘要:
A method for establishing a secured communication channel, between a first processing component and a second processing component; the method comprising executing a digital rights management agent on a processing unit, the digital rights management agent being configured to enforce permissions associated with digital content based on a digital rights management protection mechanism; receiving, by the digital rights management agent at least a security data item, the security data item including a session key data item; verifying authenticity of the received session key data item by the digital rights management agent using said digital rights management protection mechanism; providing the verified session key data item by the digital rights management agent to at least the second processing component; establishing a secured communication channel between the first and second processing components using at least the provided session key data item.
摘要:
The embodiments of the present invention relate to apparatuses, in terms of a client device (110) and a server (120) and to methods in the client device (110) and in the server (120) respectively for enabling a user to consume content provided by a content provider. According to the method in the client device (120) the method comprises: assembling a request for rights for consuming a content and indicating in the request which content to consume; determining if an upgrade key, associated with the content, is present in the client device; including, in such a case, in the request, an identifier of the upgrade key that is associated with the content, sending the request to the content provider; receiving, a response comprising an encrypted rights object; decrypting the encrypted rights object and starting to use the rights object for consuming the content.