Encrypted communication system, communication status management server, encrypted communication method, and communication status management method
US8218769B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2007 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Sep 6, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/065
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
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 plurality of communication devices performing encrypted communication within a group, and in which traffic generated by distributing the encryption key and the like can be reduced. In the encrypted communication system according to the present invention, information including a key for use in the intra-group encrypted communication or a seed which generates the key is distributed to the communication devices belonging to the group that are participating (e.g., logged in) in the intra-group encrypted communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.