Security management device, communication system, and access control method
US8195816B2 · kind B2 · utility
4Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2006 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Aug 18, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1466
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a technique of preventing a user from being tricked into revealing personal information by pharming.Security server 50 checks whether a combination of a domain name and an IP address of WWW site 30 to be accessed by PC 10 is registered in access-permit DB 55a or access-inhibit DB 55b. Security sever 50 also checks whether the combination is registered in any of secure DNS servers 40 registered in secure DNS DB 55c. On the basis of a result of the checks, security server 50 controls an access by PC 10 to WWW site 30.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.