If they kept all details on mining secret, couldn't they theoretically mine with with only a few trusted partners and secure their own network? Since no one else knows how to attack their network because mining detail is not known, what is to stop someone like the federal reserve from doing this with the larger banks as their "trusted" partners?
I suppose that at that point it would be less secure because actual trust is required between the partners but otherwise it would be just as efficient as bitcoin right?





