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US20110202761 Mobility Handling For Multicast Services  
A method of handling mobility of a sender in a multicast packet sending scenario. The method comprises firstly establishing a multicast tree across a packet data network and transmitting multicast...
US20050021945 Ciphering as a part of the multicast concept  
The invention proposes a method for transmitting a message to a plurality of user entities in a network by using a multicast service, comprising the steps of encrypting a multicast message by...
US20110307695 METHODS AND SYSTEMS FOR PROVIDING A SECURE ONLINE FEED IN A MULTI-TENANT DATABASE ENVIRONMENT  
Embodiments of the present invention provide systems, apparatus, and methods for securing information shared between users of a database system. A message in a feed on a multi-tenant database can...
US20100313014 DOWNLOADABLE SECURITY BASED ON CERTIFICATE STATUS  
A conditional access system (CAS) computer in a downloadable CAS receives a downloadable management certificate (DMC) and determines, using the DMC, security information including a DMC key size...
US20130054964 METHODS AND APPARATUS FOR SOURCE AUTHENTICATION OF MESSAGES THAT ARE SECURED WITH A GROUP KEY  
Methods, systems and apparatus are provided for source authentication. In accordance with the disclosed embodiments, a key-management server generates a key-delivery message that includes a key...
US20110016307 Authorization, authentication and accounting protocols in multicast content distribution networks  
An end user computer is assigned a multicast content distribution group by a network service intelligence platform. The network service intelligence platform authenticates a token sent by the user...
US20070005958 Cipher method and system for multicast service  
A cipher method and system for multicast service. A group includes multiple user equipment, each having a respective key. The keys are orthogonal to one another. A content provider provides a raw...
US20090296939 LOCAL AREA NETWORK  
A method and system for distributed security for a plurality of devices in a communication network, each of the devices being responsible for generating, distributing and controlling its own keys...
US20100228972 System and Method for Content Distribution with Broadcast Encryption  
The claimed invention relates to system and method for providing encrypted content via a distribution network 630 with efficient key distribution and distribution network assignment. The claimed...
US20090217032 METHOD FOR GENERATING SAK, METHOD FOR REALIZING MAC SECURITY, AND NETWORK DEVICE  
A method for generating a secure association key (SAK), a method for realizing medium access control security (MACsec) and a network device are provided. The method for generating an SAK includes...
US20070061569 Inter-entity coupling method, apparatus and system for service protection  
Disclosed is an inter-entity coupling method for service protection in a broadcast environment including a terminal and a broadcast network, which includes a Broadcast Service Application (BSA), a...
US20080120501 Interactive multicast media service  
A multicast media service is provided. The multicast media service may be implemented using a media server that multicasts media files to users at user computing equipment. The multicast media...
US20070140483 Combination-based broadcast encryption method  
A combination-based broadcast encryption method includes: assigning by a server a base group of different combinations to each user; producing and sending secret information for each user by using...
US20050033962 Controlling group access to doors  
An entity controlling access of a plurality of users to at least one disconnected door includes mapping the plurality of users to a group, for each time interval d of a sequence of dates, having...
US20060206708 Method for managing digital rights in broadcast/multicast service  
A method of digital rights management for a broadcast-multicast service, the method comprising receiving a request from a terminal to join a service domain having a common group key; transmitting...
US20140173276 Local Area Network  
A method and system for distributed security for a plurality of devices in a communication network, each of the devices being responsible for generating, distributing and controlling its own keys...
US20050086469 Scalable, fault tolerant notification method  
A scalable, fault-tolerant, federated event notification method is described, wherein clients express interest in a topic by subscribing, and published event notifications are delivered to all...
US20070274525 Encrypted communication system, communication status management server, encrypted communication method, and communication status management method  
An encrypted communication system is provided, in which an encryption key for use in encrypted communication and settings information for the encrypted communication are distributed to each of a...
US20080320303 VPN PROCESSING VIA SERVICE INSERTION ARCHITECTURE  
In one embodiment, a method can include: (i) sending a request to join a group to a service broker; (ii) receiving from the service broker a list of key servers servicing the group; and (iii)...
US20110307694 Secure Registration of Group of Clients Using Single Registration Procedure  
Automated secure registration techniques for communication devices are provided which address the problem of allowing multiple clients to gain access to one system, and thus provide a solution to...
US20100106648 Method and apparatus for acquiring encryption key to provide pay channel  
A mobile terminal is configured to acquire an encryption key to decrypt a pay channel encrypted with a smartcard profile by the mobile terminal in a Multimedia Broadcast/Multicast Service (MBMS)...
US20130124859 SYSTEM AND METHOD FOR DIGITAL RIGHTS MANAGEMENT WITH AUTHORIZED DEVICE GROUPS  
Various embodiments of a system and method of digital rights management with authorized device groups are described. Various embodiments may include a system including a digital rights management...
US20070016769 Broadcast encryption using rsa  
Methods, components and systems for implementing secure and efficient broadcast encryption schemes with configurable and practical tradeoffs among a pre-broadcast transmission bandwidth t, a key...
US20070079118 Method of managing a key of user for broadcast encryption  
A method of managing a key of a user for a broadcast encryption. The method includes forming a tree comprising m hierarchies by repeating a process of setting a ith level comprising groups into...
US20100049973 METHOD, APPARATUS, AND SYSTEM FOR SENDING AND RECEIVING SECURITY POLICY OF MULTICAST SESSIONS  
A method, apparatus, and system for sending and receiving a security policy of multicast sessions are provided. The method for sending the security policy of multicast sessions includes: after a...
US20080028211 Server apparatus, terminal device, and method for performing IP multicast communication  
A presence table stores therein presence information. A storage unit stores therein in associated manner a terminal identifier unique each of a plurality of terminals and an encryption key to be...
US20100122084 METHOD, APPARATUS AND SYSTEM FOR REGISTERING NEW MEMBER IN GROUP KEY MANAGEMENT  
A method for registering a new member in group key management is disclosed. An agent is deployed on the local network that requires the automatic group key management service; the agent receives...
US20100211775 SYSTEM AND METHOD FOR ACCESS NETWORK MULTI-HOMING  
A system and method for generating a set of IP addresses for access multi-homing in an Internet access network. A generating host obtains from the network a set of IPv6 subnet prefixes for a...
US20080005358 METHOD AND APPARATUS FOR SYNCHRONIZING CONTENT DIRECTORY SERVICE IN UNIVERSAL PLUG AND PLAY NETWORK  
A method and apparatus for synchronizing a content directory service (CDSs) of a Universal Plug and Play (UPnP) device. In the method, a CDS, whose content is modified, generates an event message...
US20140365768 Extending Data Over Cable Service Interface Specification (DOCSIS) Provisioning of Ethernet Passive Optical Network (EPON) (DPoE) to EPON over Coax (EPoC) Multicast Key Management  
Disclosed herein are mechanisms to support the management of multicast keys for a multicast group comprising one or more optical line terminals (OLTs), one or more fiber to coax units (FCUs), and...
US20090158273 Systems and methods to distribute software for client receivers of a content distribution system  
A content distribution system employs IP multicast techniques to facilitate in identifying software dynamically, and to facilitate in downloading the software from the appropriate server to...
US20090150668 SYSTEM AND METHOD FOR IMPLEMENTING SECURITY OF MULTI-PARTY-COMMUNICATION  
A system and method for implementing security of multi-party communication is disclosed in the disclosure. The system mainly includes a group key management unit and a record protocol unit. The...
US20050169481 Method of assigning user keys for broadcast encryption  
A method of assigning user keys for broadcast encryption. According to the method, at least one unit tree in which grandparent nodes, parent nodes, and son nodes are hierarchically connected is...
US20050100166 Systems and methods for authenticating communications in a network medium  
A location-limited channel is implemented using physical exchanges of physical tokens. The physical tokens are implemented using writeable or re-writeable storage media. Location-limited channels,...
US20080016338 System and method for secure wireless multi-hop network formation  
The present invention provides methods and devices for a security architecture for use in wireless multi-hop networks. A method for implementing pair-wise encryption key establishment, network...
US20080072035 Securing multicast data  
Systems and methods for securing multicast data are described. Data of a multicast, is protected through the use of at least double encryption keys, such as a community-of-interest key and session...
US20100031033 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...
US20050021946 System and method for nodes communicating in a shared network segment  
The invention provides a method and system for a network which includes a plurality of nodes, preferably routers, a shared network segment for communication between the nodes, and several...
US20060282666 Key management method for broadcast encryption in tree topology network  
A key management method for broadcast encryption in a tree topology network which includes a plurality of nodes is provided. The method includes forming a plurality of first node groups each of...
US20050010674 Content distribution system and content distribution method  
To obtain a content distribution system in which the load placed on a distribution server is reduced, the installation cost and the operational cost are reduced, introduction can be easily...
US20070168655 System and method for multicasting IPSec protected communications  
A system and method is provided which allows multicast communications encrypted using IPSec protocol to be received by receivers in a network. In order to allow the receivers to receive the...
US20070260879 Method of authenticating multicast messages  
A method of message authentication in communication networks with multicast-enabled routers or switches is disclosed. The latter are tasked to support the packet source authentication: On...
US20050031119 Method and communications device for secure group communication  
A communications device and method for secure group communications in a highly dynamic environment permits group members to be readily added or removed from the group without compromising...
US20090144544 CABLE NETWORK SYSTEM AND METHOD FOR CONTROLLING SECURITY IN CABLE NETWORK ENCRYPTED DYNAMIC MULTICAST SESSION  
A security control method in a cable network dynamic multicast session, and more particularly, a method of controlling forward secrecy and backward secrecy in a Data Over Cable Service Interface...
US20070192594 Apparatus and method for ciphering/deciphering a signal in a communication system  
In a communication system, second encryption information is generated using first encryption information when data to be transmitted is generated. The data is encrypted using the second encryption...
US20070214359 System and method for providing secure multicasting across virtual private networks  
A method is provided for securely transmitting multicast data across an unsecured public network. Such a method includes receiving a join message identifying at least one private multicast group;...
US20100185850 METHOD AND DEVICE FOR AUTHENTICATING LEGAL NEIGHBOR IN GROUP KEY MANAGEMENT  
Method and device for authenticating a legal neighbor in group key management (GKM) are disclosed. The method includes: members on a local network that needs the automatic GKM service store a...
US20050169474 Distribution system  
A distribution system comprising an adding unit adding an electronic sign to a code request by using first key data corresponding to second key data possessed by a managing device to which a code...
US20100017600 SECURE NEIGHBOR CACHE PRELOAD  
The present invention relates to methods, apparatus, and systems for implementing a secure neighbor cache preload. The method includes initiating a data transfer request. The data transfer request...
US20070204152 METHOD FOR THE DISTRIBUTION OF CONTENTS  
A method for the distribution of a content, characterised in that an encoded content is received by at least two receivers and is decoded with the aid of data blocks which differ from each other,...

Matches 1 - 50 out of 78 1 2 >