Nokia Obtains Blockchain DNS Patent – Domain Name Feed


The company obtains a US patent for a way to secure DNS with blockchain technology.

The US Patent and Trademark Office has granted patent number 11,196,573 (pdf) to Nokia Technologies (NYSE: NOK) for “Secure and Decentralized Domain Name System”.

Many companies have filed for blockchain-related patents for domain names. This one is quite broad and seems to sidestep the traditional “let’s replace traditional DNS with blockchain” mentality. The patent states:

Some decentralized domain name system (DNS) alternatives based on blockchain technology have been proposed. Such blockchain-based solutions may be more immune to man-in-the-middle attacks (MITM). However, such systems still have many limitations. Firstly, they are not fully compatible with the current internet infrastructure for the operation of the Domain Name System (DNS) and the security service, requiring additional browser software such as plugins or even independent browsers. Second, they require a local copy of the blockchain. Third, only certain new top-level domains are supported.

The authors of the patent believe that a big problem with the current DNS and the way we use the web is that certificate providers can be hacked or coerced, and they act as a single point of failure in the web’s chain of trust. .

The solution offered by Nokia registers domain registrations in the blockchain to add a layer of trust. The patent also explains how this could be applied to the Internet of Things and how a household could use a private blockchain for added security.

Nokia applied for a patent in 2017 and it was issued today.


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