Method and apparatus for improving security during web-browsing
US9154472B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2006 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Nov 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention provides a system that improves security during web-browsing. During operation, the system can receive a URL from a user. Next, the system can determine an IP address for the URL by querying a DNS server. The system can then determine a public-key associated with the URL. Next, the system can encrypt a string using the public-key to obtain an encrypted-string. The system can then send the encrypted-string to a remote-system which is associated with the IP address. Next, the system can receive a response from the remote-system. The system can then determine whether the DNS server has been compromised using the string and the response. If the system determines that the DNS server has been compromised, the system can alert the user, and in doing so, improve security during web-browsing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.