Secure DNS query
US11216514B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2017 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Oct 17, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2101/668
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A secure DNS query may be made by establishing a secure connection with a specific DNS server to determine an address for a hostname. A client device may have a database that may contain a record of a secure DNS server for one or more hostnames. When a DNS request contains one of the specified hostnames, an authenticated session may be created with the designated secure DNS server and a network address for the hostname is returned using the session. The authenticated session may authenticate a client device to the server as well as authenticate the server to the client. In some embodiments, the secure DNS server may accept connections from authenticated clients and may disregard connection requests from non authenticated clients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.