DDNB—Doubly Decentralized Network Blockchain Architecture for Application Services

Abstract

Decentralization and immutability characteristics of blockchain technology has attracted numerous blockchain-based systems and applications to be proposed. However, technical shortcomings such as low transaction speed, complexity, scalability, and vulnerability to certain attacks have been identified, making it challenging to use the technology on general consumer applications and services. To address the problem, we propose a new application service platform architecture called DDNB (Doubly Decentralized Network Blockchain). DDNB divides the system into multiple layers in order to take advantage of permissioned blockchain for its processing speed and security, while allowing permissionless open use of the system to application developers. To allow any node to freely participate in application services, DDNB adopts a novel periodic node self-verification process and query chaining mechanism to authenticate newly joining nodes and validate transactions effectively and efficiently. The proposed architecture is evaluated in terms of its processing speed and security on a real proof-of-concept prototype system.

Secure Delivery Scheme of Common Data Model for Decentralized Cloud Platforms

“…In order to efficiently manage service provisioning, we have introduced an edge service provider with regular nodes [21]. The dual decentralized network blockchain utilizes a licensed blockchain for increased processing speed and security, and allows the system to be used openly and without permission to application developers while dividing the system into multiple layers [22].…”