公开(公告)号：CA2504843C

公开(公告)日：2011-02-22

申请号：CA2504843

申请日：2003-10-24

Applicant: IBM

Inventor： BAENTSCH MICHAEL ,  BUHLER PETER ,  EIRICH THOMAS ,  HORING FRANK ,  KRAMP THORSTEN ,  OESTREICHER MARCUS ,  OSBORNE MICHAEL ,  WEIGOLD THOMAS D

IPC: H04L29/06

Abstract: A method for providing a user device with a set of access codes comprises, in the user device, storing an encryption key and an identification code, and sending a message containing the identification code to a server via a communications network. In the server, an encryption key is stored corresponding to the key stored in the user device, allocating the set of access codes on receipt of the identification code from the user device. A look up function is performed based on the identification code received in the message to retrieve the key from storage. The set of access codes is encrypted using the retrieved key to produce an encrypted set. A message containing the encrypted set is sent to the user device via the network. In the user device, the encrypted set received from the server is decrypted using the key in storage, and storing the decrypted set of access codes for use by a user of the user device.

公开(公告)号：AT336135T

公开(公告)日：2006-09-15

申请号：AT03751197

申请日：2003-10-24

Applicant: IBM

Inventor： BAENTSCH MICHAEL ,  BUHLER PETER ,  EIRICH THOMAS ,  HOERING FRANK ,  KRAMP THORSTEN ,  OESTREICHER MARCUS ,  OSBORNE MICHAEL ,  WEIGOLD THOMAS D

IPC: H04L29/06

Abstract: A method for providing a user device with a set of access codes comprises, in the user device, storing an encryption key a an identification code, and sending a message containing the identification code to a server via a communications network. In the server, an encryption key is stored corresponding to the key stored in the user device, allocating the set of access codes on receipt of the identification code from the user device. A look up function is performed based on the identification code received in the message to retrieve the key from storage. The set of access codes is encrypted using the retrieved key to produce an encrypted set. A message containing the encrypted set is sent to the user device via the network. In the user device, the encrypted set received from the server is decrypted using the key in storage, and storing the decrypted set of access codes for use by a user of the user device.

公开(公告)号：DE60026400D1

公开(公告)日：2006-05-04

申请号：DE60026400

申请日：2000-07-13

Applicant: IBM

Inventor： DYKEMAN DOUGLAS ,  OSBORNE MICHAEL ,  SCOTTON PAOLO ,  STOKES OLEN ,  BASSO CLAUDE ,  AUBRY MARIANNE ,  KHAC MINH-TRI DO

IPC: G06F9/44 ,  G06F12/08 ,  G06F13/00 ,  H04L45/02 ,  H04L49/111 ,  H04Q11/04

Abstract: Address management methods and apparatus are provided for a node serving as peer group leader for a peer group of nodes in one level of the hierarchy of a PNNI hierarchical network, whereby the peer group leader represents the peer group to one or more neighboring nodes in the next level up of the hierarchy. The peer group leader has a memory (2) for storing peer group topology data (4), comprising address data which is supplied to the peer group leader from nodes in the peer group and represents addresses for access by the network, and peer group leader topology data (5), comprising address data which is supplied to said neighboring nodes by the peer group leader and represents addresses accessible via the peer group. The address management method comprises: checking whether addresses represented by said address data are accessible via the peer group; notifying said neighboring nodes of changes in the accessibility of addresses so identified; and updating said peer group leader topology data (5) in accordance with said changes.

公开(公告)号：CA2504843A1

公开(公告)日：2004-05-21

申请号：CA2504843

申请日：2003-10-24

Applicant: IBM

Inventor： KRAMP THORSTEN ,  WEIGOLD THOMAS D ,  BAENTSCH MICHAEL ,  EIRICH THOMAS ,  OESTREICHER MARCUS ,  HORING FRANK ,  OSBORNE MICHAEL ,  BUHLER PETER

IPC: H04L29/06

Abstract: A method for providing a user device with a set of access codes comprises, i n the user device, storing an encryption key and an identification code, and sending a message containing the identification code to a server via a communications network. In the server, an encryption key is stored corresponding to the key stored in the user device, allocating the set of access codes on receipt of the identification code from the user device. A look up function is performed based on the identification code received in t he message to retrieve the key from storage. The set of access codes is encrypt ed using the retrieved key to produce an encrypted set. A message containing th e encrypted set is sent to the user device via the network. In the user device , the encrypted set received from the server is decrypted using the key in storage, and storing the decrypted set of access codes for use by a user of the user device.