CONSENSUS METHOD FOR BLOCKCHAIN VIA VIRTUAL MACHINE BASED HYBRID DELEGATED PROOF OF STAKE AND PROOF OF WORK (VDPOSW)

摘要

New consensus methods are provided to utilize a set of virtual machines to serve as both of the mining machines as well as delegates and is achieved by a hybrid mechanism of both of the proof of work and delegated proof of stake. The present disclosure firstly labels virtual machines with different computing power into different categories and vote to elect virtual machines from each category into delegate cluster. When the transaction requests come, the transaction requests are processed in different “rounds” in the time spectrum, and in each “round”, the virtual machines of different category are given equal time windows to perform the mining work. To prevent malicious delegates' attack, the present disclosure also implements a new method to randomize the serving order of each delegate for future “round” by hashing the signature key and mod with the total number of delegates.