Amazon successfully patents a Proof-of-Work cryptographic system

Amazon, an American multinational technology company has been granted a patent on 14 May to build a Proof-of-Work (PoW) cryptographic system similar to Bitcoin blockchains.

The patent was granted by the U.S. Patent and Trademark Office (USPTO), outlines how Merkle trees could be generated as a solution to the PoW challenge. This is in addition to other salient benefits. Dating back to late 70s, a Merkle tree structure allows for verification of data sent between computers to ensure decentralized blocks are not invalid.

While informing on the technicalities, the patent expressed –

“A proof-of-work system where a first party (e.g., a client computer system) may request access to a computing resource. A second party (e.g., a service provider) may determine a challenge that may be provided to the first party. A valid solution to the challenge may be generated and provided for the request to be fulfilled. The challenge may include a message and a seed, such that the seed may be used at least in part to cryptographically derive information that may be used to generate a solution to the challenge. A hash tree may be generated as of generating the solution.”

The patent threw light on the fact that PoW could also help prevent denial-of-service (DoS) and distributed denial-of-service (DDoS) attacks. These forms of compromise frequently hound computer networks. The patent sustained by adding that having a valid proof-of-work (such as Merkle tree creation) may mitigate advanced forms of invasions. The perpetrators may be mandated to submit PoW solution thereby slowing down request rates.

The patent threw light on the fact that PoW could also help prevent denial-of-service (DoS) and distributed denial-of-service (DDoS) attacks.

Although the crypto-ecosystem has been met with tremendous friction since its inception, it has slowly witnessed non-financial giants participating actively. Amazon’s pitch in the arena comes after endeavors by firms like Jaguar, Microsoft, and Nike. However, the patent has not directly indicated the use of blockchain, cryptocurrency or any token. Rather, the patent uses terms like a cryptographic key, digital signature, and public signing key. The patent clearly clarifies its takeaway as a general authentication system.

In April, Amazon shared news about Amazon Web Services Inc. (AWS) announcing the public availability of Amazon Managed Blockchain. Amazon introduced Amazon Managed Blockchain as a comprehensive service that makes it easy to manage and create scalable blockchain networks. Customers could conveniently set up a blockchain network spanning multiple AWS accounts with a few steps in the AWS Management Console.