Privacy and security mechanism for presence systems with tuple spaces
US7472268B2 · kind B2 · utility
11Cited by
7References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 2003 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Jul 10, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/42365
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system is provided for cycling encryption keys to prevent the guessing of encrypted presence information in a shared information space. The system of the invention prevents malicious publication of presence information and ensures that only valid presence information is published to the shared information space. A malicious subscriber is prevented from knowing that he/she has been detected while a search is underway to determine his/her identity. During such a search, authorized subscribers are shifted to a new source of presence information while the malicious subscriber remains at the previous source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.