Invention Grant
- Patent Title: Domain name system queries
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Application No.: US17295119Application Date: 2018-11-26
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Publication No.: US11888828B2Publication Date: 2024-01-30
- Inventor: Niilo Lehtikuja , Patrik Salmela
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (Publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (Publ)
- Current Assignee Address: SE Stockholm
- Agency: Christopher & Weisberg, P.A.
- International Application: PCT/EP2018/082559 2018.11.26
- International Announcement: WO2020/108730A 2020.06.04
- Date entered country: 2021-05-19
- Main IPC: H04L9/40
- IPC: H04L9/40

Abstract:
Embodiments relate to a method for secure domain name system, DNS, queries. The method is performed in a DNS client, and the method includes obtaining an encryption key and internet protocol, IP, address for a final DNS resolver, creating a session key, encrypting a DNS query and the created session key with the obtained encryption key, and sending a DNS message containing the encrypted DNS query and the created session key to an intermediate DNS resolver, different from the final DNS resolver, together with the obtained IP address for the final DNS resolver. Methods, nodes, computer programs, and a computer program product for secure DNS queries are also presented.
Public/Granted literature
- US20220006797A1 DOMAIN NAME SYSTEM QUERIES Public/Granted day:2022-01-06
Information query