Russia's not going to develop it on it's own. It would need to be organized internationally through multi-stakeholdership in order to generate the trust required by all the nation. The systems design is one thing, but the political design is something else entirely. Who runs it, who audits it, how they audit it, who can change it, how decisions get made, incident response protocols, breach disclosure agreements, etc. Developing the governance system for it would likely take far more person-hours than developing the technology