System and method for distributed group management
US7185194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2001 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | May 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/123
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system of distributed group management for generating authentication information relating to a group to which users belong at a high speed on a client side and, at the same time, wherein a server side can verify this at a high speed. This system provides a group certificate issuing apparatus for issuing a group certificate on a client side based on original group information including the name of the group to which the users belong and a group certificate verification unit for verifying a legitimacy of the certificate transmitted from the client side in a server. Here, the group certificate issuing apparatus adds an issuance side processed value obtained by processing the information of the original group information by a cryptographic function to this original group information to obtain a group certificate, and the group certificate verification unit processes part of information included in the received certificate by an identical cryptographic function to obtain a verification side processed value and performs an authentication by confirming that the issuance side processed value and the verification side processed value coincide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.