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公开(公告)号：DE69333105D1
公开(公告)日：2003-08-28
申请号：DE69333105
申请日：1993-05-05
Applicant: IBM
Inventor： AUERBACH JOSHUA SETH , DRAKE JR , GOPAL PRABANDHAM MADAN , HERVATIC ELIZABETH ANNE , KAPLAN MARC ADAM , KUTTEN SHAY , PETERS MARCIA LAMBERT , WARD MICHAEL JAMES
Abstract: A multinode, multicast communications network has a distributed control for the creation, administration and operational mode selection operative in each of the nodes of the network. Each node is provided with a Set Manager for controlling either creation of, administration or access to a set of users to whom a multicast is to be directed. The Set Manager maintains a record of the local membership of all users associated with the node in which the Set Manager resides. A given Set Manager for each designated set of users is assigned the task of being the Set Leader to maintain membership information about the entire set of users in the multicast group. One of the Set Managers in the communications network is designated to be the Registrar which maintains a list of all the Set Leaders in the network. The Registrar insures that there is one and only one Set Leader for each set of users, answers inquiries about the membership of the sets and directs inquiries to appropriate Set Leaders if necessary. All of the set creation, administration and control functions can therefore be carried out by any node of the system and provision is made to assume the function at a new node when failure or partition in the network occurs.
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公开(公告)号：AT210907T
公开(公告)日：2001-12-15
申请号：AT93480067
申请日：1993-06-03
Applicant: IBM
Inventor： DERBY JEFFREY HASKELL , DRAKE JOHN ELLIS JR , DUDLEY JOHN GARY , HERVATIC ELIZABETH ANNE , JANNIELLO JAMES PATRICK , KAPLAN MARC ADAM , KESNER BARRY , KOPERDA FRANCIS RICHARD , PETERS MARCIA LAMBERT , POTTER KENNETH HARVEY JR , TSIGLER ANDREY LEV , MARIN GERALD ARNOLD , GOPAL INDER SARAT , CIDON ISRAEL
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公开(公告)号：DE69327017D1
公开(公告)日：1999-12-23
申请号：DE69327017
申请日：1993-05-19
Applicant: IBM
Inventor： AUERBACH JOSHUA SETH , CHOW CHEE-SENG , PETERS MARCIA LAMBERT , DRAKE JOHN ELLIS , GOPAL PRABANDHAM MADAN , HERVATIC ELIZABETH ANNE , KAPLAN MARC ADAM
Abstract: In a multicast network communication system, administration of the communication path making up the multicast tree itself has been separated from control and administration of the network. Creation of a multicast distribution tree and control over the membership thereof, is separately controlled independently from the creation and use of the tree transmission path used to communicate among the members of a multicast set. Transmission distribution trees are set up when a transmission request is received and the properties of the transmission path that is required are known. Transmission paths are created and controlled by all nodes in the communications system, each node having necessary control code and processors for responding to requests from set members to transmit a message to groups of users by creating and activating the necessary tree communication path distribution linkages. A distribution tree is created by the Tree Leader by generating a tree address using a random number generator. A tree address correlator is generated utilizing network and node identifiers unique for the network, and a list of subnodes or users connected for each member of the multicast tree set is generated. Using this information, a tree distribution path is computed to cover all of the subnodes required and a tree set up request message is sent by the Tree Leader along a computed path to each involved subnode. Each subnode returns a message indicating whether the tree address is already in use or is available for use. Successfully negotiated tree addresses are marked at the path link initiation and termination points at each node through the network.
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公开(公告)号：AT186803T
公开(公告)日：1999-12-15
申请号：AT93480060
申请日：1993-05-19
Applicant: IBM
Inventor： AUERBACH JOSHUA SETH , CHOW CHEE-SENG , PETERS MARCIA LAMBERT , DRAKE JOHN ELLIS JR , GOPAL PRABANDHAM MADAN , HERVATIC ELIZABETH ANNE , KAPLAN MARC ADAM
Abstract: In a multicast network communication system, administration of the communication path making up the multicast tree itself has been separated from control and administration of the network. Creation of a multicast distribution tree and control over the membership thereof, is separately controlled independently from the creation and use of the tree transmission path used to communicate among the members of a multicast set. Transmission distribution trees are set up when a transmission request is received and the properties of the transmission path that is required are known. Transmission paths are created and controlled by all nodes in the communications system, each node having necessary control code and processors for responding to requests from set members to transmit a message to groups of users by creating and activating the necessary tree communication path distribution linkages. A distribution tree is created by the Tree Leader by generating a tree address using a random number generator. A tree address correlator is generated utilizing network and node identifiers unique for the network, and a list of subnodes or users connected for each member of the multicast tree set is generated. Using this information, a tree distribution path is computed to cover all of the subnodes required and a tree set up request message is sent by the Tree Leader along a computed path to each involved subnode. Each subnode returns a message indicating whether the tree address is already in use or is available for use. Successfully negotiated tree addresses are marked at the path link initiation and termination points at each node through the network.
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公开(公告)号：HU0201561A2
公开(公告)日：2002-09-28
申请号：HU0201561
申请日：2000-05-22
Applicant: IBM
Inventor： HIND JOHN RAITHEL , PETERS MARCIA LAMBERT
Abstract: A method and system for efficiently establishing secure communications between mobile devices in a radio network. The present invention utilizes public key cryptography and unique hardware identifiers to enable authorizations for access to wireless networks, such as picocells. The present invention prevents the mobile user from maintaining a plurality of secrets such as user identifier/password pairs, PINs, or encryption keys, for access to each device to which he might require access. Wireless devices distributed throughout an enterprise are enabled to be efficiently initialized for secure communications. Well-known public key cryptography and machine unique identifiers are utilised to establish a secure channel and initialize the wireless devices. Wireless devices are enabled to be paired or permanently associated by a user or a network administrator. Well known public key cryptography and machine unique identifiers are utilised to establish a secure channel and associate the devices with each other. This is extremely useful for associating a wireless headset with a telephone or associating a wireless mouse with a computer.
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Patent Agency Ranking
公开(公告)号：DE69331310T2
公开(公告)日：2002-08-22
申请号：DE69331310
申请日：1993-06-03
Applicant: IBM
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公开(公告)号：DE69331310D1
公开(公告)日：2002-01-24
申请号：DE69331310
申请日：1993-06-03
Applicant: IBM
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公开(公告)号：CA2371329A1
公开(公告)日：2000-11-30
申请号：CA2371329
申请日：2000-05-22
Applicant: IBM
Inventor： PETERS MARCIA LAMBERT , HIND JOHN RAITHEL
Abstract: A method and system for efficiently establishing secure communications betwe en mobile devices in a radio network. The present invention utilizes public key cryptography and unique hardware identifiers to enable authorizations for access to wireless networks, such as picocells. The present invention preven ts the mobile user from maintaining a plurality of secrets such as user identifier/password pairs, PINs, or encryption keys, for access to each devi ce to which he might require access. Wireless devices distributed throughout an enterprise are enabled to be efficiently initialized for secure communications. Well-known public key cryptography and machine unique identifiers are utilised to establish a secure channel and initialize the wireless devices. Wireless devices are enabled to be paired or permanently associated by a user or a network administrator. Well known public key cryptography and machine unique identifiers are utilised to establish a secu re channel and associate the devices with each other. This is extremely useful for associating a wireless headset with a telephone or associating a wireles s mouse with a computer.
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公开(公告)号：CA2094409C
公开(公告)日：1998-07-14
申请号：CA2094409
申请日：1993-04-20
Applicant: IBM
Inventor： AUERBACH JOSHUA SETH , CHOW CHEE-SENG , DRAKE JOHN ELLIS JR , GOPAL PRABANDHAM MADAN , HERVATIC ELIZABETH ANNE , KAPLAN MARC ADAM , PETERS MARCIA LAMBERT , WARD MICHAEL JAMES
Abstract: In a multicast network communication system, administration of the communication path making up the multicast tree itself has been separated from control and administration of the network. Creation of a multicast distribution tree and control over the membership thereof, is separately controlled independently from the creation and use of the tree transmission path used to communicate among the members of a multicast set. Transmission distribution trees are set up when a transmission request is received and the properties of the transmission path that is required are known. Transmission paths are created and controlled by all nodes in the communications system, each node having necessary control code and processors for responding to requests from set members to transmit a message to groups of users by creating and activating the necessary tree communication path distribution linkages. A distribution tree is created by the Tree Leader by generating a tree address using a random number generator. A tree address correlator is generated utilizing network and node identifiers unique for the network, and a list of subnodes or users connected for each member of the multicast tree set is generated. Using this information, a tree distribution path is computed to cover all of the subnodes required and a tree set up request message is sent by the Tree Leader along a computed path to each involved subnode. Each subnode returns a message indicating whether the tree address is already in use or is available for use. Successfully negotiated tree addresses are marked at the path link initiation and termination points at each node through the network.
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公开(公告)号：AT332599T
公开(公告)日：2006-07-15
申请号：AT00935289
申请日：2000-05-22
Applicant: IBM
Inventor： HIND JOHN RAITHEL , PETERS MARCIA LAMBERT
Abstract: A method and system for efficiently establishing secure communications between mobile devices in a radio network. The present invention utilizes public key cryptography and unique hardware identifiers to enable authorizations for access to wireless networks, such as picocells. The present invention prevents the mobile user from maintaining a plurality of secrets such as user identifier/password pairs, PINs, or encryption keys, for access to each device to which he might require access. Wireless devices distributed throughout an enterprise are enabled to be efficiently initialized for secure communications. Well-known public key cryptography and machine unique identifiers are utilised to establish a secure channel and initialize the wireless devices. Wireless devices are enabled to be paired or permanently associated by a user or a network administrator. Well known public key cryptography and machine unique identifiers are utilised to establish a secure channel and associate the devices with each other. This is extremely useful for associating a wireless headset with a telephone or associating a wireless mouse with a computer.
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