Nowadays Practical Byzantine Fault Tolerance (PBFT) algorithm has become the most extensive consensus in alliance chain. However, PBFT is usually only applicable to small networks due high communication complexity and poor scalability. Although there have been many improved algorithms for recent years, they ignore fault tolerance democracy. Therefore, meet requirements of a degree decentralizat...

At present, blockchain technology is more and widely used in the field of food traceability, good results have been achieved. However, many current technologies algorithms are not developed for specific situation resulting resource waste low computational efficiency. In view these problems, this paper analyzes summarizes classic distributed consensus mechanism technology, focusing on PBFT (prac...

Internet of things is widely used in the current era to collect data from sensors and perform specific tasks through processing according requirements. The collected can be sent a blockchain network create secure tamper-resistant records transactions. combination with IoT has huge potential as it provide decentralized computation, storage, exchange for data. However, applications require low-la...