Security policy for HTTPS using DNS
US10375020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2017 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Jul 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/121
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a browser operating on a host device receives, from a user, a request to access a web server that includes a Uniform Resource Locator (URL) associated with the web server. In response, the browser sends, to a Domain Name System (DNS) server, a request for an Internet Protocol (IP) address correlated with the domain hosting the URL, and receives, from the DNS server, a response that comprises a block policy IP address and an appropriate error code. Based on this IP address and the error code indicated in the response, the browser renders an access denied page indicating that access to the web server associated with the URL is not permitted, wherein at least a portion of the access denied page is stored in memory accessible to the browser prior to sending the request for the IP address correlated with the domain that is hosting the URL.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.