The domain name system (DNS) is an essential service of the Internet to provide the mapping service for domain names and IP addresses, as one of the most important addressing services of the Internet. It is an open and interconnected platform and an important portal for the Internet access. The domain name privacy protection is one of the hot issues in the DNS security in recent years. The DNS data encryption algorithm (DNSDEA) is proposed to encrypt the DNS queries and responses between the client and the DNS server over the user datagram protocol (UDP) to protect the user privacy. This algorithm solves the problem of the domain name privacy protection, and is compatible with the traditional DNS system. It maintains the simple and efficient technical characteristics of the DNS system. Compared with the current encryption methods, this approach could increase the granularity of the DNS lookup parallel algorithm, reduce the latency and improve the concurrent DNS queries. Finally, from the technical level, some reference suggestions are made for the research of the subsequent communication encryption applications and for the DNS secure resolution performance.

domain name system  /  privacy protection  /  parallel computing  /  encryption  /  latency