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2. (WO2018162789) SECURE DE-CENTRALIZED DOMAIN NAME SYSTEM

Pub. No.:    WO/2018/162789    International Application No.:    PCT/FI2017/050152
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Tue Mar 07 00:59:59 CET 2017
IPC: H04L 9/00
H04L 9/08
H04L 9/32
H04L 29/06
Applicants: NOKIA TECHNOLOGIES OY
Inventors: ROENNOW, Troels
MARTIN LOPEZ, Enrique
LI, Hongwei
PALYUTINA, Karina
Title: SECURE DE-CENTRALIZED DOMAIN NAME SYSTEM
Abstract:
A computer-implemented method for secure de-centralized domain name system, the method comprising: recording a domain registration transaction to a blockchain, the domain registration transaction comprising a domain name, a domain primary key corresponding to a domain public key and domain certificate information for a server node; recording a domain security transaction, comprising the domain public key, to the blockchain to generate a domain name record comprising the domain name, an associated IP address, the domain public key and the domain certificate information, wherein the domain security transaction being signed using the domain primary key; transmitting, by a client node, a domain name request to a domain name node; receiving, by the client node, a domain name response from the domain name node, the domain name response comprising the domain public key, the domain certificate information and the associated IP address retrieved from the domain name record of the blockchain; and initiating a secure communication between the client node and the server node using at least one of the domain public key and the domain certificate information.