Patent application number | Description | Published |
20080222258 | DIGITAL RIGHTS MANAGEMENT METHOD AND APPARATUS - A digital rights management (DRM) method and apparatus are provided. The DRM method includes generating a rights object request message for requesting a rights object corresponding to content stored in a media player and transmitting the rights object request message; receiving a rights object response message corresponding to the rights object request message from a media server which receives the rights object request message; and obtaining a rights object using the rights object response message. | 09-11-2008 |
20080250504 | DIGITAL RIGHTS MANAGEMENT METHOD AND APPARATUS - A digital rights management (DRM) method and apparatus are provided. The DRM method includes transmitting a rights object request message; receiving a rights object response message based on a Universal Plug and Play (UPnP) contents directory service; and acquiring a rights object using the rights object response message. Another DRM method includes receiving a rights object request message; and transmitting a rights object response message based on a Universal Plug and Play (UPnP) contents directory service. The DRM apparatus includes a transmitting unit which transmits a rights object request message to a media server of a DRM domain; a receiving unit which receives a rights object response message based on a Universal Plug and Play (UPnP) contents directory service from the media server; and a playback unit which plays back a contents object on a basis of a rights object acquired using the rights object response message. | 10-09-2008 |
20080307092 | METHOD AND APPARATUS FOR DETERMINING WHETHER CONTENT IS USABLE - Provided is a method of determining whether content provided from a first device is available to a second device in a network including the first and second devices. In the method, content domain information indicating a domain in which use of content provided from a first device is allowed is obtained from the first device, device domain information indicating a domain to which the second device belongs is obtained from the second device, the content domain information and the device domain information are compared to determine whether they are identical to each other, whether the content is available to the second device is determined based on the result of comparing. | 12-11-2008 |
20080310620 | METHOD, APPARATUS AND SYSTEM FOR MANAGING A/V PROFILES - A method, apparatus and system for managing A/V (Audio/Video) profiles are provided, which is related to a technology that supports different profiles in a domain. The method of managing A/V profiles includes requesting a license component and an encrypted content component, and creating a DRM license and encrypted content by gathering elements that correspond to an A/V profile of a specified device from the license component and the encrypted content component. | 12-18-2008 |
20090025085 | METHOD AND SYSTEM FOR DOWNLOADING DRM CONTENT - A method and system for downloading DRM contnt are provided. The method includes a first device supporting DRM technology and acquiring content information from a download descriptor downloaded from a content provider system, the first device transmitting the acquired content information to a second device not supporting DRM technology, and the second device downloading the DRM content from the content provider system using the downloaded content information. | 01-22-2009 |
20090055648 | METHOD OF AND APPARATUS FOR SHARING SECRET INFORMATION BETWEEN DEVICE IN HOME NETWORK - A method and apparatus for sharing secret information between devices in a home network are provided. In the method and apparatus, home network devices receive a password (credential) input by a user and encrypt secret information based on the credential by using keys generated according to a predetermined identity-based encryption (IBE) scheme. Accordingly, it is possible to securely share the secret information between home network devices without any certificate authority or certificate. | 02-26-2009 |
20090064344 | METHOD AND APPARATUS FOR MANAGING DIGITAL RIGHTS MANAGEMENT RIGHTS OBJECTS - Provided are a method and apparatus for managing digital rights management (DRM) rights objects, and more particularly, to a method and apparatus for downloading and managing DRM rights objects by accessing a device, which does not support DRM technology, using a universal plug and play (UPnP) network. The method includes requesting a media server, which has downloaded specified content, to provide meta information of the content; determining whether to download a rights object for the content based on the meta information of the content; requesting an approval for the download of the rights object if it is determined to download the rights object; and providing the downloaded rights object to the media server. | 03-05-2009 |
20090198998 | Method and apparatus of ensuring security of communication in home network - Provided are a method and apparatus to ensuring communication security between a control apparatus and a controlled apparatus in a home network. The control apparatus in the home network establishes a registration Secure Authenticated Channel (SAC) with the controlled apparatus by using a Transport Layer Security Pre-Shared Key ciphersuites (TLS-PSK) protocol implemented by using a Product Identification Number (PIN) of the controlled apparatus input from a user, shares a private key with the controlled apparatus via the registration SAC, and uses services of the controlled apparatus via a service SAC established by using the TLS-PSK protocol implemented by using the shared private key to easily implement a framework ensuring communication security in the home network. | 08-06-2009 |
20090235285 | METHOD AND APPARATUS FOR GENERATING MASHUP GRAPH, AND METHOD AND APPARATUS FOR RECOMMENDING MASHUP SERVICE - Provided are a method and apparatus for generating a mashup graph. The method includes receiving a set of services and collecting application programmable interfaces (APIs) of the services, and generating a mashup graph by using the collected APIs according to information regarding connections between the APIs and weights between the APIs. Thus, a mashup graph having a simple form in which a user's preference can be reflected can be generated, instead of a complicated connection matrix. | 09-17-2009 |
20100031033 | APPARATUS AND METHOD OF SHARING DRM AGENTS - An apparatus and method of sharing content is provided. An apparatus for sharing content according to an aspect of the invention includes a search module which extracts specific information from encrypted content, and requests a host apparatus for an execution code, and a client DRM agent module which is installed with the execution code received from the host apparatus according to the request and outputs the encrypted content using the execution code. | 02-04-2010 |
20100325421 | APPARATUS AND METHOD FOR PROVIDING SECURITY SERVICE IN HOME NETWORK - An apparatus and method for providing a security service is provided. The apparatus includes a reception module which receives first data including a first public key and marked with a security ID, the first public key being one of a pair of public keys necessary for providing a security service to a home server and the security ID indicating that the first data needs to be encrypted; a response generation module which generates second data by encrypting part of a response message for the first data; and a transmission module which transmits the second data to a home server in a home network. | 12-23-2010 |