CodePudding user response:
Basically all block chain consensus agreement, a fundamental problem, need to be solved is how to decide who can produce the next block, can be a god to choose, or take a piece of, or vote to select, or is randomly selected, choose a different way, it corresponds to the different characteristics, also corresponds to the different function, become a different chain, for example PBFT, problem is the message volume is too big, admissions requirements, online rate problem, problem of POW is the consumption of energy, without end, have a good feature but POW is resistant to copy, because the POW's work force is the physical requirements, not more than * * at the same time, for POS, it is easy to another * *, in this figure, one of the most important information are different protocols can be suitable for the number of nodes, at present, the largest support node, which is the most decentralized is POW, you to look at the down to the agreement of two green, one is RBFT, this is the goal of XX, we hope is to be able to transcend Libra Hotstuff agreement, in this layer, system chain can combine POW + POS at the same time, the other is SAV Protocol, this is the direction of development for the future YY, we hope it can support more than millions of nodes, and do not need to consume too much energy, this figure we can experience, I am here today's speech, thank you,
Facebook is RBFT, can look for facebook article see, only heard bosses said BFT is certification through strict theory, specific literature is not clear,
CodePudding user response:
https://www.ixueshu.com/search/index.html? Q=Byzantine fault tolerance